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Midterm

BIO SCI 93 Study Guide - Midterm Guide: Endergonic Reaction, Redox, Cellular RespirationExam


Department
Biological Sciences
Course Code
BIO SCI 93
Professor
Busciglio/ Wood/ Green
Study Guide
Midterm

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Midterm 2 Practice Questions:
For questions 1 30, circle the best answer choice.
1. The entire “library” of genetic instructions an organism inherits is called its:
a. Biosphere
b. Genome
c. Nucleoid
d. Emergent Properties
e. Histone
2. Which DNA sequence will bind to the sequence below to form a double helix?
GAACTCCCTC
a. GAACTCCCTC
b. GAACUCCCUC
c. CUUGAGGGAG
d. CTTGAGGGAG
e. GAGGGAGUUC
3. What type of molecule is ATP?
a. Enzyme
b. Amino acid
c. DNA nucleotide
d. RNA nucleotide
e. Buffer
4. Biological systems:
a. Rely exclusively on endergonic reactions
b. Rely exclusively on exergonic reactions
c. Couple endergonic and exergonic reactions
d. Lower reaction Ea by changing the free energy of the reactants
e. Use enzymes to decrease deltaG
5. The activation energy of a reaction is _______________.
a. Increased by the addition of ATP
b. Equal to the energy released from the reaction
c. Lowered by the addition of enzymes
d. Increased by a rise in temperature
e. Released during an endergonic reaction
6. If ATP was required to drive a reaction, then:
a. The potential energy of the products was lower than the potential energy of the reactants
b. The reaction was endergonic
c. The reaction released free energy
d. ADP was hydrolyzed
e. Ions moved down their concentration gradient
7. Which statement is false about the redox reaction for cellular respiration?
a. Glucose is oxidized and converted to carbon dioxide
b. Oxygen is oxidized and converted to water
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c. Energy is released
d. Oxygen is reduced and converted to water
e. This reaction occurs in plant and animal cells
8. What would be the result of a mutation in the ATP synthase ability to transport H+ back into the mitochondrial
matrix?
a. A new ATP synthase would be generated
b. Extra production of water
c. Channel would allow active passage of H to the matrix
d. ATP synthase would fail to generate ATP
e. ADP and Pi would quickly join to make ATP
9. Which pathway is common to both cellular respiration and fermentation?
a. Krebs cycle
b. Electron transport chain
c. Production of ethanol
d. Glycolysis
e. Oxidative phosphorylation
10. Which of the following is true concerning photosynthesis and cellular respiration?
a. In cellular respiration, glucose is oxidized and oxygen is reduced, while in photosynthesis, carbon dioxide
is reduced and water is oxidized
b. In cellular respiration, carbon dioxide is reduced and water is oxidized, while in photosynthesis, oxygen
is reduced and carbon dioxide is oxidized.
c. In cellular respiration, glucose is reduced and oxygen is oxidized, while in photosynthesis, glucose is
oxidized and water is reduced
d. In cellular respiration, water is oxidized and oxygen is reduced, while in photosynthesis, carbon dioxide
is reduced and water is oxidized
e. In cellular respiration, oxygen is oxidized and glucose is reduced, while in photosynthesis, water is
reduced and carbon dioxide is oxidized
11. Which of the following is false about the dark reactions (Calvin cycle)?
a. It uses ATP and NADPH to convert CO2 into sugar
b. G3P is produced and used to synthesize proteins, sugars and fats
c. It occurs in the thylakoid
d. It occurs in the stroma
e. NADPH transfers electrons from light reactions to dark reactions
12. The formation of ATP by substrate-level phosphorylation requires the use of:
a. Enzymes
b. Mitochondria
c. NADH
d. Actin and Myosin
e. Endocytosis
13. The majority of ATP formed in muscle cells:
a. Is created in the cytoplasm
b. Is created during oxidative phosphorylation
c. Is formed by substrate-level phosphorylation
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