1
In cellular respiration, when too much ATP is being produced, ATP goes to turn off the enzyme phosphofructokinase. What type of feedback regulation is this called?
Negative Feedback Regulation.
What is the difference between the sugars deoxyribose and ribose?
Deoxyribose has a missing oxygen on carbon 2, while ribose has it.
___ reactions break down polymers to form monomers. This involves the ___ of water.
___ reactions break down monomers to form polymers. This involves the ___ of water.
dehydration, removal; hydrolysis. splitting/addition
What is the organic end product of photosynthesis?
G3P (glyceraldehyde-3-phosphate)
The enzyme isocitrate dehydrogenase, a key metabolic enzyme in the Krebs Cycle, is activated by Ca2+ released into the matric of the mitochondrion. Ca2+ is an example of what?
Cofactor
Other than its nucleotides, state one other difference between DNA and RNA.
1. DNA is double stranded & RNA is single stranded.
2. DNA uses deoxyribose as it's 5-carbon sugar, while RNA uses ribose.
In a molecule with a ketone group, the carbon that is closest to the ketone group would be carbon __.
1.
What is the enzyme important for fixing CO2?
Rubisco
Polyethylene glycol (PEG) is a poison if you drink it, but its effects can be stopped by drinking large quantities of alcohol. Polyethylene is metabolized by the enzyme alcohol dehydrogenase whose normal function is to metabolize alcohol. Where on the alcohol dehydrogenase is the PEG likely to be binding?
Active Site
What bond holds the nitrogenous bases of the DNA strands together?
Hydrogen bond
An aldose molecule has the ______ group in its structure.
Aldehyde
The electron transport chain pumps protons where in the chloroplast?
Pumps protons into the thylakoid space
Why is carbon the element of choice when construction organisms?
1. Daisy chain a long string of carbon atoms together.
2. String of carbon atoms can branch.
3. Carbon atoms can form rings.
What are the differences between competitive & noncompetitive inhibition?
1. Competitive inhibition binds for the active site & is needed in excess of the substrate.
2. Noncompetitive inhibition binds for the allosteric site & is needed in small amounts.
The technical definition of carbohydrates is: “ polyhydroxyl _____ & _____.
Aldehydes; ketones