B
Area B of the graph shows the activation energy required if an enzyme was not present
Explanation:
Reactions with high activation energy cannot occur spontaneously. Enzymes are responsible for lowering this activation energy and enabling reactions to occur at a faster pace than natural. An example is carbonic anhydrase enzyme that enables increased rates of carbon dioxide dissolving in and out of blood plasma.
Enzymes distort the bond of reactants such that they become unstable ( this raises the reactants Gibbs free energy). The bonds therefore break and rearrange to form the products of lower and stable energy states.
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Answer:
The areas that have had the action potential are refractory to a new action potential.
Explanation:
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He or she is said to be in a positive
nitrogen balance state.
Nitrogen balance is the
traditional method of determining dietary protein requirements. Determining
dietary protein requirements using nitrogen balance requires that all nitrogen
inputs and losses are carefully collected, to ensure that all nitrogen exchange
is accounted for. Positive nitrogen balance is associated with periods of
growth, hypothyroidism, tissue repair, and pregnancy. This means that the
intake of nitrogen into the body is greater than the loss of nitrogen from the
body, so there is an increase in the total body pool of protein.
Answer:
11. TRUE
12. TRUE
13. FALSE
14. TRUE
15. FALSE
16. TRUE
17. TRUE
18. TRUE
19. TRUE
20. FALSE
Explanation:
Animals can actually reproduce sexually and asexually. Animals that reproduce asexually do that through fission, fragmentation, budding, etc.
Some of the animals that reproduce asexually include planarians, sea stars, annelid worms, etc.
In the fertilization process, the male sperm cell and the female egg cell come together.
Sexual reproduction involve the fertilization of egg by the sperm. In asexual, there is no fertilization. Ferns are spore-bearing plants. They reproduce via spores but their spores are not actually blackish.
Influenza, also called the “flu”, is a viral disease that affects humans and many animals. It most commonly causes a fever and respiratory problems. There are three groups ofinfluenza viruses<span>, called type A, B, or </span>C. Influenza<span> type A is the primary group affecting both humans and animals.
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