DNA replication needs to occur because existing cells divide to produce new cells.Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions!
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Which type of weathering occurs most frequently at high elevations, and can bring mountains down to sea level over time?
Translate the mRNA into the corresponding amino acids.
The reactants for photosynthesis are carbon dioxide, water and sunlight (light energy).
true or false
examples of bacteriophage
Examples of bacteriophages are: 1) Temperate phages (mu and lambda) 2) Filamentous and spherical phages , both having ssDNA (single stranded DNA)
The Krebs cycle forms many products. Which option lists the correct products of the Krebs cycle after 1 molecule of glucose goes through it?
net 2 NAD+, 2 ATP, 4 CO2, 2 FADH
net 1 NADH, 1 ATP, 2 CO2, 1 FADH2
net 4 NADH, 4 ATP, 8 CO2, 4 FADH2
net 2 NADH, 2 ATP, 4 CO2, 2 FADH2
Answer:
Net 2 NADH, 2 ATP , 4 CO2, 2 FADH2
Explanation:
The correct products of the Krebs cycle after 1 molecule of glucose is ( option 4 ) ; Net 2 NADH, 2 ATP , 4 CO2, 2 FADH2
The Krebs cycle is a cycle/series of chemical reactions utilized by aerobic organisms in the generation of energy that is stored in phosphate bonds (ATP) through oxidizing acetate ( gotten from carbohydrates, fats and protein) into [tex]CO_{2}[/tex].
Hence when 1 molecule of glucose through the Krebs cycle the correct products will be Net 2 NADH, 2 ATP , 4 CO2, 2 FADH2
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Compare how the nervous system and endocrine system work to send messages through the human body.
Answer:
Here is Your answer vote me as brainlist.
Explanation:
One of the most significant differences between the nervous system and endocrine system is that the nervous system uses electrical impulses to send messages through neurons while endocrine glands use hormones to send messages to the target cells through the bloodstream.
The nervous system uses electrical and chemical signals to quickly send messages through the body, while the endocrine system uses hormones to gradually send messages through the bloodstream.
What is nervous and endocrine system?The nervous system uses electrical and chemical signals to transmit information rapidly and directly to specific target cells. This system is composed of neurons, which transmit impulses through the body, and specialized cells called neuroglia, which support and protect the neurons. The nervous system is divided into two parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS includes the brain and spinal cord and the PNS includes the nerves that extend out to the rest of the body.
The endocrine system, on the other hand, uses hormones to transmit information more slowly and diffusely throughout the body. Hormones are chemical messengers that are secreted by glands and travel through the bloodstream to target cells. The endocrine system includes a variety of glands, such as the pituitary gland, thyroid gland, and adrenal gland, that produce hormones that regulate various physiological processes, such as growth, metabolism, and reproduction.
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A chemical bond formed when two atoms transfer electrons is called
Answer:
covalent
Explanation:
If carbon dioxide was removed from a plant's environment, what would you expect to
happen to the plant's production of sugars?
O fewer sugars will be produced
more sugars will be produced
O carbon dioxide does not affect the production of sugars in plants
o the same number of sugars will be produced but without the carbon dioxide
Answer: Fewer sugars will be made because plants use carbon dioxide in photosynthesis.
Hope this helps
Plants are autotrophs, which prepare their food in the presence of sunlight, water, and carbon dioxide to yield sugar and oxygen.
The carbon dioxide is removed from the plant's environment, then less sugar will be produced.
Photosynthesis is a metabolic process in which plants prepare food in the presence of sunlight, carbon dioxide, and water. The products of photosynthesis are oxygen and sugar molecules.
The carbon dioxide if removed or reduced from the plant's environment, then the plants will be unable to perform photosynthesis properly, and in the limited resources, the products formed will be reduced.
Thus, the correct answer is Option A.
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what are the proteins used in active transprot called
How do calcium ions help amplify the signal?
HELP PLEASE!!!
Answer:
Calcium signaling is the use of calcium ions (Ca2+) to communicate and drive intracellular processes often as a step in signal transduction. Ca2+ is important for cellular signalling, for once it enters the cytosol of the cytoplasm it exerts allosteric regulatory effects on many enzymes and proteins. Ca2+ can act in signal transduction resulting from activation of ion channels or as a second messenger caused by indirect signal transduction pathways such as G protein-coupled receptors.
Explanation:
Wikipedia
What type of protein helps molecules move through a
cell membrane?
Answer:
Gated Channel protein
Explanation:
Answer:
Water channel proteins are helps the molecules move through a cell membrane.
Explanation:
this protein acts like a pore in the membrane that lets water molecules or small ions through quickly. This proteins (aquaporins) allow water to diffuse across the membrane at a very fast rate. Ion channel proteins allow ions to diffuse across the membrane.
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Examine the leaves of a palm tree.
Which statement most specifically describes a palm tree? Choose one answer.
Palm trees are dicots.
Palm trees are monocots.
Palm trees are angiosperms.
Palm trees are flowering plants.
Answer:
the correct answer is B
Explanation:
palm trees are monocots
Answer:
b
Explanation:easy
why does a deletion mutation usually cause more defects during protein synthesis than a point mutation?
Answer:
Deletion mutations can affect the entire base sequence.
Explanation:
Answer:
Deletion mutation may cause a shift of base sequence, causing the reading frames for base sequence to change during translation. This may affect the type of amino acid it the original base sequence codes for, resulting in a change in amino acid sequence in the polypeptide translated. Therefore, affecting the whole protein itself. There may be wrong amino acids that prevents vital bonds like disulfide bridges to form, resulting in a huge change in 3 dimensional conformation of the protein. A point mutation may result in a gene sequence being edited. However, only the target sequence is being mutated. The rest of the gene sequences are left untouched. Therefore, the impact is localised. This ensures that even though a few wrong amino acids may be in the polyleptide, most of the bonds that are crucial for the correct 3 dimensional conformation is still present, therefore, lesser defects will be resulted due to point mutation as compared to deletion mutation.
Explanation:
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Do ocean currents affect aquatic life? What do you think and why?
How does the change in atmospheric conditions affect aquatic life? Explain your response.
The ocean life would die off because less salinity in the water and if the currents decrease in strength the nutrients they carry would not make to the life in the oceans and ocean life would die.
do Lungs take up dissolved oxygen in water and exchange it for carbon dioxide.
Answer:
yes they do
Explanation:
My dad is a marine bialogist
Answer
no.
Explanation:
we can only breathe normal oxygen. if we could breathe any other type of oxygen, we could breathe underwater.
but some animal lungs can do this though. but humans can't.
hope this helped. have a good day. :)
How is radioactive decay related to radiometric dating
Answer:
Radiometric dating, often called radioactive dating, is a technique used to determine the age of materials such as rocks.
Explanation: It is based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.
Please help me if you want!
Answer:
Your answer is C
What is one cause of muscle soreness and fatigue?
Group of answer choices
Krebs Cycle
Lactic acid fermentation
Alcoholic fermentation
Glycolysis
How does mitochondria help the cell get the material it needs
Answer:
Known as the “powerhouses of the cell,” mitochondria produce the energy necessary for the cell's survival and functioning. Through a series of chemical reactions, mitochondria break down glucose into an energy molecule known as adenosine triphosphate (ATP), which is used to fuel various other cellular processes.
Easy question for easy points
Answer:
A dominant trait is opposed to a recessive trait which is expressed only when two copies if the gene are shown
Answer:Teh first box
Explanation:
In genetics, dominance is the phenomenon of one variant of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome. The first variant is termed dominant and the second recessive.
The root word “lun” or lune refers to the ____________
Answer:
Lun or Lunar are references for the moon.
What information can be gathered from a DNA sequence?
Answer:
It is blood.
Explanation:
In DNA many types of blood cells are +&-
glucose molecules moving through protein channels is an example of what type of transport
A- Facilitated diffusion
B- Active transport
C- Passive transport
D- Osomosis
Answer:
B-active transport
Hope it will help
Thank you
all the facts and observations gathered in an experiment are called A.conclusions B.Data C.theories D.hyposthesis
Answer:
data
Explanation:
All the facts and observations gathered in an experiment are called data. Therefore, option B is correct.
What is an experiment?An experiment is a technique used to confirm or deny a hypothesis, as well as assess the likelihood or effectiveness of something that has never been tried before. Experiments show what happens when a specific factor is modified, which sheds light on cause-and-effect relationships.
The three primary categories of scientific experiments are quasi-experimental, observational, and experimental (non-experimental). The most rigorous type of scientific investigation is experimental, often known as randomized control. The most control is present, as the name would imply.
Data are the facts and the observations gathered in an experiment. Therefore, option B is correct.
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What macromolecules make up the cell membrane? Based on the information you have from the diagram. (check all that apply)
- polysaccharides
- proteins
- lipids
- nucleic acids
If you want to move a 12kg object at 2m/s, how much force must be applied?
Answer:
F = 24 N
Explanation:
im not 100% sure if this is correct but tried
what are nodes and inter nodes
Answer:
Nodes are the regions on the stem from which leaves develop, while internodes are the regions between two nodes.
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All the following are usually recessive traits in humans EXCEPT: Your answer: Dark hair Colorblindness Straight hair Left-handedness
Answer:
dark hair
Explanation:
what impact do you think 3d printing could have on the future of science?
Answer:
Sculptures and lots of filler
Explanation:
How about stone, nahhhh to hard!
Answer:
it could impact having 3D printed items of models of cells and atoms and molecules and blood cells and everything that could be 3D and help design a bigger picture for scientists...
Explanation:
thats the best i got for this hope it helps!!
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Essential nutrients move through a cell membrane by both passive transport and active transport. Which of the following correctly describes the transport of materials across a cell membrane?
a) Active transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration.
b) Passive transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration.
c) Active transport moves nutrients from areas of high concentration to areas of low concentration without the use of chemical energy.
d) Passive transport moves nutrients from areas of low concentration to areas of high concentration without the use of chemical energy.
Answer:
I think it would be d.
Explanation: