On a cold day, your cells depend on ________ to maintain an operating temperature of 37 degrees Celsius.

BIOL 101 Quiz 5

1. On a cold day, your cells depend on ________ to maintain an operating temperature of 37 degrees Celsius.
2. In a(n)________ the product of one reaction becomes the reactant of the next reaction and so on.
3. A catalyzed reaction__________ than an un‐catalyzed one.
4. One of the laws governing the behavior of energy in living things describes energy conversion as inefficient, with much energy being lost in the form of
5. An excess amount of product accumulates at the end of a metabolic pathway. The product then binds to the allosteric site of the first enzyme along the pathway shutting down the pathway. We call this process
6. The energy storage molecule that connects endergonic and exergonic reactions, driving endergonic reactions forward, is
7. Physicists define energy as
8. Energy‐releasing reactions drive biosynthetic ones forward by contributing to a pool of
9. In biosynthesis of a protein, energy for bonding amino acids together comes from
10. The cell’s pumping of substances against diffusion forces that would carry those substances the other way is termed
11. When activation energy is not available for a given chemical reaction
12. Three phosphate groups linked to a ribose sugar which, in turn, is linked to a pyrimidine base known as adenine: this phrase describes the structure of
13. The physicist’s definition of energy is _______________ for use in defining energy changes within a living cell.
14. In nature, as energy freely changes from one form to another
15. If the final end product of a metabolic pathway is continually removed and used elsewhere then
16. A useful way for a cell biologist to define energy is
17. ______ is freely convertible from one form to another but _______ can never be created or destroyed.
18. A producer organism is called a “producer” because it produces
19. In a long metabolic pathway, the multiple changes made to an initial reactant molecule are entirely controlled by
20. Existing chemical bonds between atoms are broken and new ones are formed between different atoms. This process
21. Moving ions across a membrane requires energy when
22. Which of the following substances would most likely enable a flagellum to drive a bacterium forward through the medium in which it is swimming?
23. In a crowded, unventilated room, the temperature rises because
24. A single regulatory molecule can shut down multiple metabolic pathways if it is able to
25. Energy supplied to break bonds in reactant molecules is known as