Cells give the body structure, absorb nutrients from meals, transform those nutrients into energy, and perform specific tasks. They produce copies of themselves and include DNA, the body's genetic material. The simplest functional unit of the human body is the cell.
How do cells work?The fundamental units of all living things are cells. There are many billions of cells in a human body. They give the body structure, absorb nutrients from meals, turn those nutrients into energy, and perform certain tasks.All of these plants and animals, including trees in a forest, fish in a river, horseflies on a farm, lemurs in the jungle, reeds in a pond, and worms in the soil, are comprised of the building blocks known as cells. Many living organisms are made up of countless cells cooperating with one another, similar to these examples.They give the body structure, absorb nutrients from meals, turn those nutrients into energy, and perform certain tasks. Additionally, cells have the ability to replicate themselves and contain the body's genetic material.To learn more about Cells refer to:
https://brainly.com/question/13920046
#SPJ13
The images show two different types of Galapagos tortoises that scientists believe descended from the same species. The first type (left) are found on islands that have high vegetation and few grasses. The second type (right) are found on an island that has large amounts of grasses and low-lying shrubs. What explains the type of turtle found on the islands with high vegetation?
The correct explanation for the type of turtle found on Galapagos islands having high vegetation is that (C) the turtles having genes encoding for long necks were able to survive better till they attained reproductive age.
The two types of turtle which can be found on Galapagos islands is largely determined by their feeding habits. The distinct shape of necks which can be observed in these two types of turtle mainly depends upon the type of adaptation that each species has acquired in response to its surrounding environment.
The turtles found on the islands with high vegetation possessed longer necks as compared to the other type. Since the second type of turtle were found in a region with low-lying vegetation, the need to raise the head in order to feed was eliminated in these type of turtle.
To learn more about genes here
https://brainly.com/question/8832859
#SPJ1
Question 1
In hydrolysis, large molecules are broken down into smaller molecules.
O True
O False
Answer:
True
Explanation:
Hydrolysis is the splitting of molecules with the addition of water
The conversion of pyruvate to acetyl coa is irreversible. Predict what would happen to fatty acids as a result of this.
The conversion of pyruvate to Acetyl CoA is irreversible. The fatty Acids will not be converted into carbohydrates and the product of this reaction is exergonic.
Why is the conversion of pyruvate to Acetyl CoA irreversible?Pyruvate dehydrogenases are cellular energy metabolisms that link glycolysis and amino acids to lipogenesis and citric acids.
Pyruvate dehydrogenase (PDH) yield an irreversible metabolic step because its under layer, pyruvate is anaplerotic or gluconeogenic, on the contrary acetyl-CoA is not.
This reaction is exergonic because of the formation citrate from Oxaloacetate and Acetyl CoA by citrate synthesis. This reaction releases a total of -31.4kJ/mol energy.
learn more on Pyruvate here: https://brainly.com/question/13031300
#SPJ1
There are two DNA strands in the picture of question 1. These strands run in opposite directions from 5' to 3' we call these....
Answer: Antiparallel
Explanation:
DNA is composed of two strands of nucleotides. The strands each run from 5' to 3' and run in antiparallel, or opposite, directions from one another.
one of your friends in the class rushes through the gram stain procedure and forgets to add iodine after staining with crystal violet. what color would organisms be at the end of the procedure?
Gram Staining: Gram staining is a laboratory procedure used to identify big bacterial groupings using staining techniques. To identify between gram-positive and gram-negative bacteria, peptidoglycan is stained. The gram staining procedures involve the use of a counterstain, iodine decolorizer, and crystal violet dye.
Why does this occur?Because they have a thick peptidoglycan coating, gram-positive bacteria show up violet during the gram staining procedure. A crystal violet stain is still present in the thick layer. The gram-negative bacteria are covered in a thin layer of peptidoglycan and lose their violet color throughout the decolorization process. Iodine serves as a mordant rather than a stain. The peptidoglycan layer aids in holding the crystal violet in place. In the absence of iodine, it would look purple rather than pink. The gram-positive bacteria's cell wall holds onto the violet hue and prevents it from leaking out during decolorization.
To know more about gram staining, visit-https://brainly.com/question/15011186
#SPJ4
a single cell with seven pairs of homologous chromosomes goes through meiosis 1. how many cells result at the end of meiosis 1? how many chromosomes exist in each cell? are the chromosomes in each cell duplicated or not?
At the end of meiosis I, there are two cells, each cell has seven chromosomes and the chromosomes in each cell are duplicated.
some features of meiotic division:
Meiosis I and Meiosis II are the two stages of nuclear and cellular division in which it occurs. However, DNA replication only occurs once.Recombination between homologous chromosome pairs is what it entails.At the end, four haploid daughter cells are produced.The diploid cell is transformed into a haploid one during Meiosis I, which separates the pair of homologous chromosomes. It is divided into prophase, metaphase, anaphase, and telophase stages.
Prophase I: The first stage of meiosis I, and it is made up of five stages: diplotene, leptotene, zygotene, pachytene, and diakinesis. homologous recombination occurs, which involves the exchange of DNA between paired chromosomes, and the crossover at chiasmata (singular: chiasma) between non-sister chromatids. The nuclear membrane and nucleolus break down at the conclusion of this stage.Metaphase I: Microtubules from opposite poles attach to the pairs of homologous chromosomes, and bivalents align at the equatorial plate.Anaphase I: The two bivalent chromosomes of each cell split and move to opposite ends of the cell. There is a connection between the sister chromatids.Telophase I: The nuclear membrane resurfaces, and cytokinesis follows. A pair of cells are formed as a result.Thus, Each daughter cell will have half of the original 7 Pair of homologous chromosomes i.e, 7 chromosomes which are duplicated.
Know more about meiosis here: https://brainly.com/question/25995456
#SPJ4
Fish or Mammals? Argumentation
Answer:
mammals
Explanation:
none needed
Why is it more dangerous to consume too much of a fat-soluble vitamin than to consume too much of a water-soluble vitamin?.
Answer:
Fat-soluble vitamins are more likely to cause toxicity
Explanation:
Water-soluble vitamins are readily excreted from the body, while fat-soluble vitamins can be stored in tissues. Fat-soluble vitamins are more likely to cause toxicity, although water-soluble vitamins can do so as well.
Brainlist maybe ;)?
Answer:
Water-soluble vitamins are readily excreted from the body, while fat-soluble vitamins can be stored in tissues. Fat-soluble vitamins are more likely to cause toxicity, although water-soluble vitamins can do so as well.
Explanation:
Which unit represents speed?
A. newtons
B. miles per hour
C. joules
D. kilometers per second
Answer: B. miles per hour
Explanation:
A is wrong because it is a unit of physic.
C is wrong because it is unit for energy
D is wrong because second is not a unit for speed
If you can, please give me a Brainliest, I need 15 more to become a Genius; thank you!
Some poisonous plants harm people and animals because they produce compounds that are structurally similar to amino acids. Possible reasons why these compounds are toxic include that they _______________ select all correct phrases.
Possible reasons why they produce compounds that are structurally similar to amino acids are toxic include that they
chаnge the finаl folded shаpe of the proteinimpаir the function of proteinsаre recognized by аmino аcyl tRNА synthetаses, аnd аre linked to а tRNА moleculeWhat is the function of protein for some poisonous plants?Plаnts hаve evolved to synthesize а vаriety of noxious compounds to cope with unfаvorаble circumstаnces, аmong which а lаrge group of toxic proteins thаt plаy а criticаl role in plаnt defence аgаinst predаtors аnd microbes. Up to now, а wide rаnge of hаrmful proteins hаve been discovered in different plаnts, including lectins, ribosome-inаctivаting proteins, proteаse inhibitors, ureаses, аrcelins, аntimicrobiаl peptides аnd pore-forming toxins.
The function of а protein is dependent upon the shаpe into which the chаin of аmino аcids folds. Mаny noncovаlent interаctions аre is responsible for mаintаining the protein's shаpe. When we hаve isolаted а protein from аn orgаnism in its proper shаpe, аnd we hаve treаted it with аn enzyme thаt selectively tаrgets аnd breаks only the peptide bonds in the proteins. The protein would not retаin its shаpe under these conditions. While the noncovаlent bonds determine the shаpe of а protein, the peptide bonds аre required to hold the аmino аcids together.
For more information about amino acids refer to the link:
https://brainly.com/question/15823799
#SPJ4
The b allele is dominant to the b allele. If two heterozygotes mate, what is the probability that the offspring will also be heterozygous.
The genotype ratio that should result from the cross of two heterozygotes is 1 (homozygous dominant): 2 (heterozygous): 1. (homozygous recessive).
Is BB homozygous recessive, heterozygous, or homozygous dominant?A homozygous dominant genotype is characterised by the presence of two dominant alleles for a characteristic in an organism. This genotype is designated as BB using the example of eye colour. A heterozygous genotype is one in which an organism possesses both a dominant and a recessive gene. This genotype is designated as Bb in our example.
The phenotypes of AA and Aa individuals are identical in total dominance. In incomplete dominance, the phenotype in a heterozygous person is noticeably less pronounced than it is in a person who is homozygous for the dominant allele, resulting in distinct phenotypes for the AA and Aa genotypes.
learn more about genotype refer
https://brainly.com/question/902712
#SPJ4
Question 8 of 10
What is the next step in the scientific method, following forming a
hypothesis?
O A. Conducting an experiment
O B. Stating the question
OC. Analyzing the data
OC. Analyzing the data is the next step in the scientific method, following forming a hypothesis
What is a hypothesis tested by science?Making conjectures (hypothetical explanations), drawing predictions as logical conclusions from the hypotheses, and then conducting tests or making actual observations based on those predictions are all steps in the scientific method.
The steps of the scientific method should be followed in this order: notice a phenomena, formulate a hypothesis, plan and carry out an experiment to verify the hypothesis, analyse and interpret the data, and then communicate the findings to other scientists.
An "informed guess" is how the term hypothesis is defined. A scientific theory has to satisfy two requirements: it has to be testable, and it has to be falsifiable. It is not considered scientific when a theory cannot be verified by observation.
Learn more about scientific method refer
https://brainly.com/question/17216882
#SPJ13
researchers tried to explain how vesicular transport occurs in cells by attempting to assemble the transport components. they set up microtubular tracks along which vesicles could be transported, and they added vesicles and atp (because they knew the transport process requires energy). yet, when they put everything together, there was no movement or transport of vesicles. what were they missing? an axon endoplasmic reticulum contractile microfilaments motor proteins
Researchers while describing movement or transportation via vesicles were missing motor proteins.
Motor proteins are a lesson of atomic engines that can move along the cytoplasm of creature cells. They change over chemical vitality into mechanical work by the hydrolysis of ATP. Flagellar revolution, be that as it may, is fueled by a proton pump.
The finest noticeable illustration of a motor protein is the muscle protein myosin which "motors" the withdrawal of muscle filaments in creatures. Motor proteins are the driving drive behind the most active transport of proteins and vesicles within the cytoplasm.
Kinesins and cytoplasmic dynein play essential parts in intracellular transport such as axonal transport and within the arrangement of the axle device and the partition of the chromosomes amid mitosis and meiosis.
Axonemal dynein, found in cilia and flagella, is pivotal to cell motility, for illustration in spermatozoa, and liquid transport, for illustration in the trachea.
Learn more about motor proteins at
https://brainly.com/question/28256779
#SPJ4
the floodplain on either side of a river is a volatile environment subject to frequent flooding. would you expect plants that were r or k strategists to be dominant in the plant community, and why?
Answer: R -Strategists
Explanation: R-Strategists are better suited for rapidly changing environmental conditions.
The main reason that there are relatively few invertebrates categorized as endangered species is because.
The main reason that there are relatively few invertebrates categorized as endangered species is because we consider other groups, such as mammals, to be more interesting and desirable.
A species that is threatened with extinction in the near future, either globally or within a certain political jurisdiction, is known as an endangered species. Because they are the most recently evolved vertebrates with the most sophisticated, complex brains, the only animals that provide milk for their young, and the only creatures that give birth to young, mammals are considered to be the most advanced animals.
In terms of diversity or quantity, mammals will never be able to compete with insects or bacteria, but their big bodies and adaptability have allowed them to thrive for the past 65 million years and the species is likely to continue to do so for a very long time.
Learn more about mammals here:
https://brainly.com/question/23090690
#SPJ4
do all human cells obtain glucose in the same way 
Answer:
Animal cells (including humans ofcourse), heterotrophs, derive their energy from coupled oxidation-reduction reactions. Glucose is a primary fuel for heterotrophs. Energy derived from glucose is stored in the form of high-energy phosphate bonds in ATP, or other nucleotide triphosphates, and as energy-rich hydrogen atoms associated with the co-enzymes NADP and NAD .
Glucose is unable to diffuse across the cell membrane without the assistance of transporter proteins. At least 13 hexose transporter proteins with different functions have been identified. Some hexose transporters allow glucose to flow passively from high to low concentration without requiring the expenditure of cell energy. Those that move glucose against its concentration gradient consume energy, generally in the form of ATP.
D-Glucose is the natural form used by animal cells.
So yes it is present inside human cells .
In eukaryotes, the oxygen-requiring reactions of aerobic cellular respiration occur in cellular organelles called.
In eukaryotes, the oxygen-requiring reactions of aerobic cellular respiration occur in cellular organelles called mitochondria.
The process through which food, in the form of sugar (glucose), is converted into energy within cells is known as cellular respiration. The oxygen-dependent phases of aerobic cellular respiration occur in mitochondria in eukaryotes. Mitochondria can be found in almost all plant and animal cells. Due to this function of mitochondria, they are also called the power houses of the cell.
While the majority of anaerobic, specifically without oxygen, and aerobic, that occurs in the presence of oxygen, respiration respectively occurs in the cytoplasm and mitochondria of the cell, respectively.
To know more about mitochondria, refer to the following link:
https://brainly.com/question/869305
#SPJ4
enzymes: group of answer choices are composed primarily of polypeptides, which are polymers of amino acids. can bind prosthetic groups such as metal ions that participate in enzyme reactions. have defined structures. bind their substrates at active sites.
Polypeptides, which are amino acid-based polymers, make up the majority of enzymes. can bind substituted groups, such as metal ions involved in enzyme activities. They have established structures Active sites are where they bind their substrates.
A polypeptides is a non-branched, continuous chain of amino acids that are bonded together by peptide bonds. By joining the carboxyl group of one amino acid to the amine group of the following amino acid, the peptide bond creates an amide.
As the constituents of muscles, bones, hair, and nails as well as the building blocks of enzymes, antibodies, muscles, and connective tissue, proteins play a significant role in biology. Because they include shorter chains of amino acids than polypeptides, peptides differ from polypeptides.
The protein consists of one or more polypeptide chains. Smaller subunits or amino acids are joined to form each polypeptide chain. Proteins are composed of amino acids and polypeptides, which are the building blocks of proteins.
Learn more about polypeptides here:
https://brainly.com/question/28270191
#SPJ4
Organisms
What do that provide?
DUE NOW PLS HELP MEEEE!!!!!
Each fossil with the layer where it will be present based on are layer A-BIRDS, layer B -dinosaurs , layer C-amphibians, layer D-Corals ,layer E -trilobites.
What is the oldest fossil layer?The Pilbara area of western Australia's Strelley Pool is home to the oldest known fossils. Stromatolites are fossilized mats of microorganisms wedged between sedimentary layers. The fossils have an age of 3.4 billion years.
How are the layers containing the fossils organized?The Law of Superposition, which asserts that in undisturbed rock sequences, the bottom layers are earlier than the top ones, is the foundation for this theory. Because of this, certain fossil discoveries can be dated using the strata—a particular stratum of rock—in which they were discovered.
TO know about fossil Layer visit:
https://brainly.com/question/11799178
#SPJ13
The complimentary base pairs for CAT are
Chargaff's rule, also known as the complementary base pairing rule, states that DNA base pairs are always adenine with thymine (A-T) and cytosine with guanine (C-G). A purine always pairs with a pyrimidine and vice versa. However, A doesn't pair with C, despite that being a purine and a pyrimidine.
Explanation:Complementary base pairs refer to the nitrogenous bases adenine, thymine, cytosine, and guanine. in a double strand of DNA, adenine will always pair with its complement thymine and cytosine will always pair with its complement guanine. This means that the two strands are complementary to each other. For example, a strand of DNA with a nucleotide sequence of AGTCATGA will have a complementary strand with the sequence TCAGTACT.
food products start changing immediately upon harvest. these changes include choose one: a. protein production in animal tissue. b. reduction by exposure to the air. c. conversion of starch to sugars in plant products. d. microbial metabolism.
Food products start changing immediately upon harvest. Option A. protein production in animal tissue.
After the food products are harvested any delay in threshing will lead to a loss of quality of the product. This happens due to reduced atmospheric conditions leading to bruising.
Once separated from their tree, plant, or vine, they go through higher prices of breathing, ensuing in moisture loss, best and nutrient degradation, and capability microbial spoilage. This frequently relies upon the particular nutrient, the commodity, and the postharvest dealing with, storage, and domestic cooking situations.
As soon as a grain crop is harvested, a farmer needs to manipulate its drying and storage. that is the very last level of grain manufacturing. Grain drying is an essential practice that occurs before storage. It reduces the grain moisture by eighty-90% and prepares the crop for in an additional garage.
After harvesting, we want to get the cereal grains from the scaly, inedible chaff that surrounds it. This manner is performed in the course of threshing. it's by far the subsequent step in grain training after harvesting.
Learn more about food harvest here:-https://brainly.com/question/1490209
#SPJ4
in drosophila, the first 14 cell divisions after fertilization take no more than 10 minutes each. e. coli in contrast take ~ 30 minutes to undergo a cell division. what is one difference between dna replication in bacteria versus drosophila that could explain this?
In drosophila,dna replication in bacteria versus drosophila that could explain this is Eukaryotic chromosomes have many origins of replication, while bacteria have only one origin of replication.
In comparison to unicellular creatures, multicellular organisms have far more stable settings where nutrients are less likely to be scarce. These cells' size, meanwhile, still has a significant impact on how they behave. Blood cells, for instance, must retain a tiny enough size to fit through capillaries, and neurons must travel long distances to transmit impulses down the lengths of limbs. Additionally, abnormal cell size is linked to disorders like Lhermitte-Duclos disease, in which larger cerebellar granule cells cause convulsions and ultimately result in death.
learn more about Drosophila here:
https://brainly.com/question/13389187
#SPJ4
Why does a plant need to store glucose...
Answer:
Because glucose is used by plants for energy and to make other substances like cellulose and starch. Cellulose is used in building cell walls. Starch is stored in seeds and other plant parts as a food source. That's why some foods that we eat, like rice and grains, are packed with starch.
Explanation:
Sugars facilitate the assimilation of nutrient elements and their transport by the plant since they reduce osmotic pressure, thus improving their entry into plant tissues. During vegetative development, transport takes place towards the stem and root tips.
How many different types of alleles for a particular gene are present in a homozygous organism?
a. 0
b. 1
c. 2
d. 3
e. 10
Answer: c. 2 alleles
Why is cell division a necessary part of maintaining multicellular life? Help asap giving brainliest!!!
Answer:
In multicellular animals, mitosis is required to maintain a consistent number of chromosomes in all body cells because it produces diploid daughter cells with genetic makeup that is typically identical to that of the parent cell. Mitosos is responsible for the multicellular organisms' growth. As a cell grows, the ratio between the nucleus and cytoplasm is distributed. Therefore, restoring the nucleo-cytoplasamic ratio is crucial for cell division. Cell repair is a very important mitosis-related function. Plants grow continuously throughout their lives as a result of mitotic divisions in the meristametic tissues, the apical and lateral Meristems.
Explanation:
A cell has the following molecules and structures: DNA, enzymes, ribosomes, cell membrane and mitochondria. It could be a cell from:
A) Any type of cell
B) A bactetium
C) An animal cell but not a plant cell
D) Either a plant or an animal cell
E) A plant cell but not an animal cell
Answer:
D
Explanation:
A cell has the following molecules and structures: enzymes, DNA, ribosomes, plasma membrane and mitochondria, it could be a cell from
a) a bacterium.
b) an animal, but not a plant.
c) a plant, but not an animal.
d) a plant or an animal.
e) any kind of organism.
Cells: Prokaryotic vs Eukaryotic and Animal vs Plant
Cells are generally broken into two basic categories based on their structures. Cells that are prokaryotic are smaller and less complex than eukaryotic cells. Prokaryotic cells differ from eukaryotic cells because they do not contain membrane-bound organelles. On the other hand, eukaryotic cells have features like a nucleus and mitochondria as well as a long list of other organelles. Bacteria are a typical example of a prokaryote. Plants and animals are examples of eukaryotes.
Animal cells and plant cells are similar because they are both types of eukaryotic cells. The main differences are that plant cells have other specialized parts not found in animal cells, such as the cell wall and chloroplasts where photosynthesis takes place.
Please help me, I really need it right now.
The power output for each of the given situations is as follows:
Power = 13 WPower = 3.75 WPower = 6.25 WWhat is mechanical power?Mechanical power is defined as the rate of doing work.
Mathematically;
Power = work done / time takenAlso, work done = force * distance covered
Hence, Power = force * distance / time taken
Considering the questions above:
1. Given: Force = 60 N; distance = 13 m; time taken = 60 s
Required: Power
Equation: force * distance / time taken
Power = 60 * 13 / 60
Answer: 13 W
2. Given: Force = 15 N; distance = 10 m; time taken = 40 s
Required: Power
Equation: force * distance / time taken
Power = 15 * 10 / 40
Answer: 3.75 W
3. Peter carried a cavan of rice with a force of 25N and covered a
distance of 15m in 60s.
Given: Force = 25 N; distance = 15 m; time taken = 60 s
Required: Power
Equation: force * distance / time taken
Power = 25 * 15 / 60
Answer: 6.25 W
Learn more about power at: https://brainly.com/question/1634438
#SPJ1
the hershey and chase experiment served as powerful independent confirmation that dna was indeed the genetic material. they made their discovery using which type of organism? a. s. pneumoniae b. different strains of bacteria c. mice d. bacteriophage
Hershey and Chase made their discovery of DNA being the independent genetic material using the d. bacteriophage.
The Hershey and Chase experiment was a big revolution in the field of biology as it proved that DNA was in fact the genetic material through which information is passed from parents to offspring.
Through their experiment, Hershey and Chase were able to show that the bacteriophages only injected their DNA into the bacteria when infecting them. The rest of the parts of the bacteriophage were not transferred to the bacteria. It was further observed that the DNA of the bacteriophages replicated inside the bacteria and produced the bacteriophage machinery inside the host cell.
This experiment hence proved that DNA was the genetic material.
To learn more about Hershey and Chase experiment, click here:
https://brainly.com/question/14452453
#SPJ4
What is the structure below? Label all parts of this structure including the polar & no polar regions.
The structure present in the image is of a phospholipid. It has 2 components:
Hydrophilic, polar phosphate head.Hydrophobic, non-polar, fatty acid tails.A phospholipid is one of the main constituent of plasma membranes. It is an amphipathic molecule as it contains the hydrophilic as well as hydrophobic parts. The hydrophilic part is the glycerol backbone along with phosphate group attached to its terminal hydroxyl group.
The fatty acid chain is the hydrophobic portion of the phospholipid that appears on the inner side of the plasma membrane bilayer. One of the two fatty acid chain is unsaturated due to presence of double bonds that gives it a kink.
To know more about phospholipid, here
brainly.com/question/20561742
#SPJ1