The answer is what follows:
-An action potential arrives at the axon terminal.
-Acetyl choline is released from the axon terminal into the synaptic cleft.
-The motor end plate is depolarized.
-The depolarized triggers an action potential with propagates along the sarcolemma and the T tubules.
-The sarcomeres contract.
What effects can enzymes have on substrates
Answer:
promote chemical reactions
Explanation:
Help!!! Please Critical Thinking Question:
Why are enzymes specific, and why can't each one speed up many different reactions? Why
this beneficial?
Answer:
The specificity of an enzyme is due to the precise interaction of the substrate with the enzyme. This precision is a result of the intricate three-dimensional structure of the enzyme protein.
Explanation:
what cell structure is made of a bilayer of phospholipids and proteins
Answer:
the Plasma Membrane
Explanation:
Like all other cellular membranes, the plasma membrane consists of both lipids and proteins. The fundamental structure of the membrane is the phospholipid bilayer, which forms a stable barrier between two aqueous compartments.
Which statement explains the relationship between the density of a material and its movement in Earth’s interior?
Cooler materials move from Earth’s mantle to the lithosphere.
Cooler materials are highly dense, causing them to sink to the outer core.
Warmer materials sink to the mantle because their density slowly decreases.
Warmer materials have a high density, causing them to rise to Earth’s surface.
Answer:
Choice B. Cooler materials are highly dense, causing them to sink to the outer core.
Answer:
Cooler materials are highly dense, causing them to sink to the outer core.
Explanation:
during transcription, on which strand will rna polymerase be located?
Explanation:
The process of transcription begins when an enzyme called RNA polymerase (RNA pol) attaches to the template DNA strand and begins to catalyze production of complementary RNA.
A student wants to develop an explanation of the role cellular respiration and photosynthesis play in the cycling of matter.
Answering which of the following questions would MOST help the student develop an explanation?
a
Which type of energy is used during photosynthesis and released during cellular respiration?
b
Which products of cellular respiration are also used as inputs during photosynthesis?
c
Which inputs or outputs of photosynthesis and cellular respiration are a source of heat?
d
Which cell organelles carry out the processes of photosynthesis and cellular respiration?
Answer:
D. Which cell organelles carry out the process of photosyinthesis and cellular respiration?
Cellular respiration is the process which occurs in the mitochondria of organisms (plants and animal) to break down sugar in the presence of oxygen to release energy in the form of ATP. This process generate carbon dioxide and water as waste products.
Photosynthesis is defined to as process by which green plants and certain other organisms transform light energy into chemical energy occurs in organelle chloroplast. Thus, the correct option is D which is which cell organelles carry out the processes of photosynthesis and cellular respiration?
What is ATP?
Adenosine 5′-triphosphate, (ATP) is an important “energy molecule” found in all life forms. Mainly, it is a coenzyme which works with enzyme namely ATP triphosphatase to transfer energy to cells by releasing its phosphate groups.
Mitochondria is known as the power house of cell and chloroplast is organelle produce green colour pigment called chloroplast which help in photosynthesis.
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Select the statement that is true.
A. DNA has the sugar deoxyribose, while RNA has the sugar ribose
B. Thymine is only present in DNA, while cytosine is only present in RNA
C. DNA and RNA are both double-stranded
D. Translation copies DNA to mRNA, while transcription coverts mRNA into proteins
Answer:
C. DNA and RNA are both double-stranded
Explanation:
This is the only one that is true.
I WILL GIVE YOU BRAINNEST!!! NO LINKS!!!
DNA polymerase is amazing because in addition to building dna, it can also ___________________.
Answer:
one I don't know
Explanation:
I don't know
How do we receive gold? (ex. do we mine? etc.)
Answer:
Ocean drifting
Explanation:
Most gold found today is sifted through sand on the shore of beaches.
ARE ALL CELLS THE SAME?
Answer:not at all!
Explanation: There are many different types of cells! Just think of the differences between a plant cell and an animal cell, the plant cell has a few different organelles than an animal cell and is missing a few that are in an animal cell as well!
I need help with this
Answer:
could you please post a bigger picture of that so i can see the questions
Explanation:
1. A change in an organism's surroundings that causes it to react is called
Answer:
I believe that's adaptation
Explanation:
I might be wrong
3. PLEASE HELP WITH THIS WILL GIVE BRAINLIST 2 BEST ANSWER
calculate the volume of a box with the following dimensions: Length = 22cm, Width = 8 cm, height = 4cm.
(show all steps)
PLEASE HELP WITH THISSS
Answer:
V box=length x width x height
Explanation:
704cm hope this helped
How does the roundup ready corn modification "help" humans?
Explanation:
Most Roundup Ready crops are considered safe for consumption. One Roundup Ready crop, though, alfalfa, has been removed from the market.
True or false? All genetically modified foods are 100% guaranteed safe.
Answer:
no
Explanation:
being 100% sure is technically impossible, so it might be 100% safe for a month, but after that is unknown
Which structure is the statement below most likely referring to?
A large glucose molecule requires facilitated diffusion, but
an oxygen molecule does not.
A. A permeable membrane
B. A semipermeable membrane
C. A cell wall
ОО
D. A chloroplast
SUBMIT
Science
The are sharp teeth that we use for biting.Racoons are opportunistic feeders and will eat just about anything they can find. They will catch and eat invertebrates such as beetles, but also eat different fruits and vegetables and other plant matter. Based on their feeding habits, they would be categorized as
Omnivore/Scavenger (They went through my garbage and ate a leftover rotten cheeseburger ;-;)
the __________ girdle attaches the upper limb to the axial skeleton.
Answer:
pectoral
Explanation:
Each upper limb is connected to the axial skeleton by the pectoral girdle, which is made up of the clavicle and the scapula.
What is axial skeleton?The clavicles and scapulae make up the pectoral or shoulder girdle. The upper limb bones are joined to the axial skeleton by the shoulder girdle. Additionally, the muscles that move the shoulders and upper limbs join to these bones.
Your upper limbs are attached to the bones along your body's axis by a pectoral girdle, also known as the shoulder girdle. Your body contains two pectoral girdles.
Therefore, the clavicle and collarbone, which together make up your shoulder, make up the pectoral girdle.
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explain the effect enzymes have on chemical reactions
Answer:
Enzymes decrease the activation energy, Enzymes increase the rate of the reaction, Enzymes provide a site where reactants can be brought together.
Enzymes are like catalysts which enhance the rate of reaction by lowering the activation energy.
All the biochemical reactions are slow because of transition state barriers. These transition state barriers are an intermediate state before the formation of products. Transition state is a high energy state and it requires a lot of energy to cross this state but we can not produce this much energy in our body. That is why an enzyme is must to catalyze any bio-chemical reaction because enzyme provides an alternate pathway which requires very low energy to proceed.
Enzymes have certain active sites wherein substrates fit in and interact with each other with the help of their functional groups and interaction of these substrates subsequently leads to product formation.
HELP PLS DUE IN LIKE 2 HOURS (PICTURE ATTACHED)
What type of organism is a crab?
Answer:
Benthos
Explanation:
because they live on the ocean floor
Answer:
Crabs are Benthos.
Explanation:
Crabs belong to the subphylum CrustaceanCrabs are invertebratesCrabs are neither amphibians nor reptilesLife in the benthos region is organized by size. Benthic organisms live on or just beneath the bottom of the lagoon or in the intertidal zoneCrabs live on ocean floor.This table shows the codons found in messenger RNA. Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Phe-Ser-Gln?
a. UUC-UCU-CAA
b. AAG-AGA-GTT
c. TTC-TCT-CAA
d. AAG-AGA-GUU
please help!
The Nucleotide sequence for Phe-Ser-Gln is UUC-UCU-CAA. The nucleic acid sequence is also known as the main structure.
What is nucleotide sequence?The order of the nucleotides in a DNA or RNA molecule is denoted by a string of letters called a nucleic acid sequence (GACU or GACT). Sequences are often presented according to the convention from the 5' end to the 3' end.
The covalent structure of the entire molecule can be defined by specifying the sequence because nucleic acids are typically linear (unbranched) polymers. The nucleic acid sequence is also known as the main structure because of this.
Therefore, The Nucleotide sequence for Phe-Ser-Gln is UUC-UCU-CAA. The nucleic acid sequence is also known as the main structure.
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PLEASE ANSWER ASAP BRAINLEST
How do adjacent cells that are not directly attached communicate? please explain in detail and explain as much you can please!
Answer:
Cells usually communicate by using chemical signals, these chemical signals which are proteins or other molecules produced by a sending cell, are often secreted from the cell and released into the extracellular space.
hopefully this helped sorry if i didn't get to explain more thoroughly.
Why is the sequence of amino acids important to protein function?
Multiple choice question.
A)
The sequence of amino acids doesn't have an effect.
B)
The order of amino acids determines the shape a protein will take.
C)
The order of the amino acids can be read like a code to assemble DNA.
D)
Amino acids can only be combined in a specific order, otherwise the bonds will fall apart.
Answer:
b
Explanation:
mutations in an amino acid sequence affect the function of its protein
an example of an incorrect theory that was disproved by the discovery of new information is?
Answer:
The geocentric model of the solar system. Early astronomers first thought the Earth was the center of the universe, later it was disproven and the heliocentric model became more accepted.
I really need help with this. Thank you.
Answer:
looks like two compounds so mixture
Water is a polar molecule because
Answer:
Water is a polar molecule because of its unequal sharing of electrons.
Answer:
The reason why Water is considered a polar molecule is because of Unequal sharing of electrons.
Explanation:
This makes the oxygen end of the molecule slightly negative. Since the electrons are not near the hydrogen end as much, that end is slightly positive. When a covalent bonded molecule has more electrons in one area than another, it is called a polar molecule.
Design a controlled experiment to determine the effect of hot, dry air on head lice. In your experimental design, be sure to:
• state the hypothesis to be tested in the experiment [1]
• state one way the control group will be treated differently from the experimental group [1]
• state one result of the experiment that would support the hypothesis [1]
An experiment is carried out to answer a question. The hypothesis predicts what is expected to occur. Experimental and control groups are compared to analyze the results, supporting or not the hypothesis.
-----------------------------------------
BACKGROUND
When people are infested with head lice, it is recommended to wash their cloth and dry it with hot air over 53 or 54ºC for 5-30 minutes.
Head lice and eggs seem to die when exposed to those conditions by getting dehydrated.
SITUATION
We will assume that we work in a primary school and that students from the 3rth grade are being affected by this parasite.
We want to know if applying hot air to these students before entering the class will make a difference and help to control this problem.
So, we will propose an experiment to answer this question.
HYPOTHESIS
A hypothesis is a conjecture. A researcher hypothesizes to predict what is going on or what is expected to occur. The hypothesis is a claim of how it works a relation between two or more variables. Usually, it is written in the present time.
Hypothesis ⇒ Applying hot air to students' heads kills the head lice that students are carrying.
To evaluate the effect of hot air, we need to keep control of as many other variables as possible.
To do so, we asked students' families not to use other treatments on students' heads and to bathe them daily.
In this way, we were sure that all students
were equally affected by the parasite, took showers every day, and neither was using any other product that could affect the results.Our population was the 3rth grade students ⇒ 64 children ⇒ 30 girls + 34 boys.
Before the experiment, we separated the 3rth grade into two groups.
Group A ⇒ 32 students ⇒ 15 girls + 17 boys ⇒ Experimental groupGroup B ⇒ 32 students ⇒ 15 girls + 17 boys ⇒ Control group
→ Treatment
Each student from group A received hot air every day for one week before entering the class.
Hot air was 53ºC and was applied for 5 minutes.
→ Control
Each student from group B did not receive the treatment for one week before entering the class.
CONTROL GROUP
The control group is used to identify any other factors influencing the results obtained in the study, apart from the modified variables of the treatment.
Individuals of the control group are selected from the same population as the treatment group.
*** These two groups are identical in all aspects except for the independent variable, which changes in the treatment group but remains constant in the control group. ***
The control group is Group B. The only difference between the control and the experimental group is that the first one did not receive the treatment. Every other aspect was equal for both groups.
The only way the control group was treated differently from the experimental group was that the control group did not received the treatment, while the experimental group did.
RESULTS
After one week, groups were compared to see if the hot air was effective in killing head lice.
When comparing the control and the experimental group, we could see that students from group A were free of parasites.
Students from group B were still affected by the head lice.
CONCLUSION
The results support the hypothesis. Hot air turned to be a great treatment for lice control.
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Which statement can be attributed to the discoveries made by Schwann?
A.All cells come from other cells.
B.All animals are made of cells.
C.All plants are made of cells.
D.
The smallest unit of life is the cell
The statement that can be attributed to the discoveries made by Schwann is as follows:
The smallest unit of life is the cell.Thus, the correct option for this question is D.
What is the contribution of T. Schwann?The major contribution of Theodore Schwann is that he proposed the Cell theory in 1839. This theory consists of three parts. They are as follows:
All living organisms whether plants or animals are made up of cells.A cell is the smallest unit of life for all living organisms. A Cell is the basic structural and functional unit of life.Apart from this, Cell theory was further refined by German Biologist Rudolf Virchow in 1855. He states that "all cells are arising from pre-existing cells". Option one is given by R. Virchow.
While all animals and plants are made up of cells is the second point of the cell theory. So, the correct option with respect to the question is that a cell is the smallest unit of life.
Therefore, the correct option for this question is D.
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What are some of the reasons that cell division is important to organisms? (Choose all that apply)
1. quick and uncontrollable cell division of cancer
2. growth into an adult stage
3. regeneration of new body parts
4. repair of dead or damaged cells
Answer:
2. growth into an adult stage
3. regeneration of new body parts
4. repair of dead or damaged cells