Cell Bio Exam 1
Proteins
Enzymes are what?
Increased lifespan
Experiments in nematode worms show feeding worms 10-30% less food led to:
By binding to the activation site
How does sucrose change the configuration of sucrase
Many times
How many times can sucrase be used to hydrolyze sucrose
Orienting active sites of enzymes to fit reactants
How might a membrane improve the efficiency of an enzymatic pathway
the final product of the biochemical pathway
In feedback inhibition, the inhibitor of the biochemical pathway is typically
Broken down into glucose and fructose
In simple terms, what happens to sucrose
Reducing power
A cell's reservoir of NADPH composes its
Decreased proline production
Consider the biochemical pathway used to synthesize the amino acid proline. A high increase in the level of proline will most likely lead to?
True
T/F: ATP is a nucleotide
False
T/F: All biochemical pathways have the same number of enzymatic reactions
False
T/F: An enzyme can only bind to one reactant at a time
False
T/F: Enzymes speed up a chemical reaction in the cell but can only be used once
False
T/F: If the end product of a biochemical pathway becomes available in the environment, it is crucial for the cell to continue making the product
True
T/F: In a biochemical pathway the product of the first reaction becomes the substrate in the second reaction
Rich in nonpolar covalent bonds in hydrocarbons
The activation site of an enzyme which breaks down fatty acids is most likely
the conversion of simple molecules into complex ones
What does the energy of sunlight allow for in biological systems
It decreases
What happens to entropy in an endergonic reaction
Allosteric site of the enzyme being inhibited
Where does the inhibitor bind during feedback inhibition
Microvilli of small intestine
Where is sucrose found in the body?
chemical, mechanical
______ energy is converted to ______ energy when heat is released during muscle contraction
Feedback
_______ inhibitors bind to the allosteric site
Transduction
the conversion of energy from one form to another