Questions
What is a catalyst that uses RNA as a substrate? What do you call RNA with...

What is a catalyst that uses RNA as a substrate?

What do you call RNA with catalytic activity?

What is an enzyme that synthesizes RNA as part of the transcription process ?

What is an enzyme that catalyzes the association between the large and small ribosomal subunits?

In: Biology

Sulfanilamide that resembles substrate of an enzyme inhibits the enzyme when added to the reaction mix....

Sulfanilamide that resembles substrate of an enzyme inhibits the enzyme when added to the reaction mix. What type of inhibition is this

A) allosteric inhibition

B) competitive inhibition

C) excitatory allosteric control

D) noncompetitive inhibition

E) feedback inhibition

In: Biology

The RY13 strain of the bacteria E. coli makes the restriction enzyme EcoR I, which cuts...

The RY13 strain of the bacteria E. coli makes the restriction enzyme EcoR I, which cuts at the sequence GAATTC. this occurs thousands of time in a full chromosome. Why doesn’t the enzyme cut the chromosome into tiny bits, killing the bacterium?

In: Biology

1. When an enzyme runs a chemical reaction, what happens to the enzyme at the end...

1. When an enzyme runs a chemical reaction, what happens to the enzyme at the end of the reaction?
a) it is unchanged, and can run another reaction

b) it is weakened, and is slower the next time

c) it becomes part of the product, and is used up

d) it is permanently damaged, or destroyed



2. When an enzyme accelerates a reaction rate, what does the enzyme do, thermodynamically (energy-wise)?

a)lowers the activation energy for the reaction

b) allows endothermic reactions to go by making them exothermic

c) releases exothermic energy from the reactants

d) generates energy to run the reaction


3. Enzymes have what relationship with their reactants?
a)specific for general type of reaction

b)enzymes can run varied reactions in the cell

c)highly specific for just one reaction

d)can bind several reactants to do similar reactions


4. When you allosterically inhibit an enzyme,

a)you decrease the V max

b)you decrease the Km

c)you increase the V max

d)you increase the Km



In: Biology

compare and contrast photosystems 1 and 2 how many molecules of ATP does a cell ultimately...

compare and contrast photosystems 1 and 2

how many molecules of ATP does a cell ultimately gain when 4 molecules of glucose are broken down via glycolysis. explain.

In: Biology

Q1. Why is PFK important in the glycolysis pathway? What does it do within it's rate-limiting...

Q1. Why is PFK important in the glycolysis pathway? What does it do within it's rate-limiting step? Think about the Committed, rate-limiting and reversible steps in this pathway.

In: Biology

CELLULAR RESPIRATION 1- Steps of Cellular Respiration: Anaerobic vs. Aerobic a. Glycolysis b. Citric acid cycle...

CELLULAR RESPIRATION

1- Steps of Cellular Respiration: Anaerobic vs. Aerobic

a. Glycolysis

b. Citric acid cycle

c. Electron transport chain (ETC)

2- Carbohydrate storage.

In: Anatomy and Physiology

What can occur in both prokaryotic and eukaryotic cells? a. Glycolysis b. citric Acid Cycle c.oxidative...

What can occur in both prokaryotic and eukaryotic cells?

a. Glycolysis

b. citric Acid Cycle

c.oxidative phosphoryation and ETC

d. A,B,C & E

e. B & C

In: Biology

What items do photosynthesis and cellular respiration have in common? For example: Item: Produce ATP Photosynthesis:...

What items do photosynthesis and cellular respiration have in common? For example:

Item: Produce ATP

Photosynthesis: light reactions

Cellular Respiration: Glycolysis, Krebs Cycle, Electron Transport

In: Biology

- Determine the energetic cost of converting eight pyruvạtes bạck into four glucose. -How does this...

- Determine the energetic cost of converting eight pyruvạtes bạck into four glucose.

-How does this compạre with the forwạrd pạthwạy of glycolysis (four glucose into eight pyruvạte)? Ạre they energy equivạlent?

In: Biology