BISC 160 Exam 2 || with Errorless Answers.
The energy available to do work is called
A. free energy
B. ΔG
C. entropy
D. enthalpy correct answers A. free energy
Which of the following is true of a photosystem?
A. It is a peripheral membrane protein.
B. It contains a single chlorophyll. molecule
C. Light energy first hits the reaction center of the photosystem.
D. It contains multiple antenna chlorophyll.
E. It always receives electrons from water. correct answers D. It contains multiple antenna
chlorophyll.
In the first step of glycolysis, a phosphate from ATP is added to glucose. This is most likely done
by which of the following enzymes?
A. decarboxylase
B. NADH reductase
C. dehydrogenase
D. isomerase
E. kinase correct answers E. kinase
When a cytoplasmic receptor is bound to its signal, it can
A. move into the nucleus.
B. cross the cell membrane.
C. phosphorylate other proteins.
, D. activate second messengers.
E. bind to a chaperone protein. correct answers A. move into the nucleus.
What is the best description of an enzyme that uses "Induced Fit"?
A. Charged active sites induce reaction to overcome activation energy.
B. Enzymes require cofactors or coenzymes to induce change in substrate.
C. Change in active site shape induces strain on a substrate.
D. Enzymes have multiple active sites.
E. A substrate binds to a specific active site. correct answers C. Change in active site shape
induces strain on a substrate.
When glycolysis is inhibited, fats will be made as storage molecules. Under these conditions,
fatty acids will be made from
A. glucose.
B. pyruvate.
C. acetyl coA.
D. oxaloacetate.
E. It is impossible to know. correct answers C. acetyl coA.
Carbon fixation occurs when CO2
A. is added to an organic molecule.
B. moves into the plant leaf.
C. is excited by light.
D. enters the citric acid cycle.
E. is oxidized. correct answers D. enters the citric acid cycle.
For the reaction Glucose 1-phosphate → glucose 6-phosphate, the ΔG at equilibrium will be
A. 0.
The energy available to do work is called
A. free energy
B. ΔG
C. entropy
D. enthalpy correct answers A. free energy
Which of the following is true of a photosystem?
A. It is a peripheral membrane protein.
B. It contains a single chlorophyll. molecule
C. Light energy first hits the reaction center of the photosystem.
D. It contains multiple antenna chlorophyll.
E. It always receives electrons from water. correct answers D. It contains multiple antenna
chlorophyll.
In the first step of glycolysis, a phosphate from ATP is added to glucose. This is most likely done
by which of the following enzymes?
A. decarboxylase
B. NADH reductase
C. dehydrogenase
D. isomerase
E. kinase correct answers E. kinase
When a cytoplasmic receptor is bound to its signal, it can
A. move into the nucleus.
B. cross the cell membrane.
C. phosphorylate other proteins.
, D. activate second messengers.
E. bind to a chaperone protein. correct answers A. move into the nucleus.
What is the best description of an enzyme that uses "Induced Fit"?
A. Charged active sites induce reaction to overcome activation energy.
B. Enzymes require cofactors or coenzymes to induce change in substrate.
C. Change in active site shape induces strain on a substrate.
D. Enzymes have multiple active sites.
E. A substrate binds to a specific active site. correct answers C. Change in active site shape
induces strain on a substrate.
When glycolysis is inhibited, fats will be made as storage molecules. Under these conditions,
fatty acids will be made from
A. glucose.
B. pyruvate.
C. acetyl coA.
D. oxaloacetate.
E. It is impossible to know. correct answers C. acetyl coA.
Carbon fixation occurs when CO2
A. is added to an organic molecule.
B. moves into the plant leaf.
C. is excited by light.
D. enters the citric acid cycle.
E. is oxidized. correct answers D. enters the citric acid cycle.
For the reaction Glucose 1-phosphate → glucose 6-phosphate, the ΔG at equilibrium will be
A. 0.
