BIO 200 Exam 1 Questions with
Complete Answers
What is the purpose of fermentation?
a. Fermentation produces ATP
b. Fermentation reduces NAD+
c. Fermentation oxidizes NADH
d. Fermentation makes oxygen
e. Fermentation allows the electron transport chain to continue - ANSWER-c.
Fermentation oxidizes NADH
If a cell is placed in a hypertonic solution, what will happen to it?
a. It will shrivel as solutes move out of the cell
b. It will swell as solutes move into the cell
c. It will shrivel as water moves out of the cell
d. It will swell as water moves into the cell
e. Nothing will happen, because the membrane is impermeable - ANSWER-c. It will
shrivel as water moves out of the cell
The sodium and chloride ions of a salt crystal are joined with what kind of chemical
bond?
a. Hydrogen
b. Peptide
c. Ionic
d. Non-polar covelent
e. Polar covalent - ANSWER-c. Ionic
What is the first stage of cellular respiration called?
a. Hydrolysis
b. The light-dependent reactions
c. The Calvin cycle
d. The Krebs cycle
e. Glycolysis - ANSWER-e. Glycolysis
Which of the following happens in the light-dependent reactions of photosynthesis?
a. NADP+ is reduced
b. NADH is reduced
c. NAD+ is oxidized
d. NADP+ is oxidized
e. FAD is oxidized - ANSWER-a. NADP+ is reduced
What is the matrix?
a. The surface of a cell
b. The fluid part of the nucleus
c. The interior part of the mitochondrion
d. The space within the endoplasmic reticulum
, e. The fluid filled space of the chloroplast - ANSWER-c. The interior part of the
mitochondrion
Membranes are composed principally of:
a. Carbohydrates
b. Cells
c. Amino acids
d. Phospholipids
e. Nucleotides - ANSWER-d. Phospholipids
What distinguishes the smooth ER from the rough ER?
a. The rough ER has DNA, the smooth ER does not
b. The smooth ER is connected to the nuclear envelop, the rough ER is not
c. The rough ER makes vesicles, the smooth ER does not
d. The rough ER has ribosomes, the smooth ER does not
e. The smooth ER is membranous, the rough ER is not - ANSWER-d. The rough ER
has ribosomes, the smooth ER does not
Which of the following is NOT a eukaryote?
a. Giardia (protist)
b. Coyote (animal)
c. Lily (plant)
d. E. coli (bacteria)
e. Yeast (fungus) - ANSWER-d. E. coli (bacteria)
A scientific observation that has withstood many attempts to falsify it, and is
generally accepted as truth is called a(n): a. Fact
b. Theory
c. Hypothesis
d. Statement
e. Axiom - ANSWER-b. Theory
Where do the light-independent reactions of photosynthesis take place?
a. In the intermembrane space
b. In the matrix
c. In the stroma
d. In the cytoplasm
e. In the thylakoid space - ANSWER-c. In the stroma
Why does a plant need water?
a. The water is used to dissolve the organic materials necessary for photosynthesis
b. The water molecule is split, supplying electrons to the photosystems
c. The oxygen of the water molecule is used in glucose production
d. Water's hydrogen bonds stabilize the chemical reactions of photosynthesis
e. It gets thirsty otherwise - ANSWER-b. The water molecule is split, supplying
electrons to the photosystems
Where do the protons get pumped TO in cellular respiration?
a. Thylakoid space
b. Intermembrane space
Complete Answers
What is the purpose of fermentation?
a. Fermentation produces ATP
b. Fermentation reduces NAD+
c. Fermentation oxidizes NADH
d. Fermentation makes oxygen
e. Fermentation allows the electron transport chain to continue - ANSWER-c.
Fermentation oxidizes NADH
If a cell is placed in a hypertonic solution, what will happen to it?
a. It will shrivel as solutes move out of the cell
b. It will swell as solutes move into the cell
c. It will shrivel as water moves out of the cell
d. It will swell as water moves into the cell
e. Nothing will happen, because the membrane is impermeable - ANSWER-c. It will
shrivel as water moves out of the cell
The sodium and chloride ions of a salt crystal are joined with what kind of chemical
bond?
a. Hydrogen
b. Peptide
c. Ionic
d. Non-polar covelent
e. Polar covalent - ANSWER-c. Ionic
What is the first stage of cellular respiration called?
a. Hydrolysis
b. The light-dependent reactions
c. The Calvin cycle
d. The Krebs cycle
e. Glycolysis - ANSWER-e. Glycolysis
Which of the following happens in the light-dependent reactions of photosynthesis?
a. NADP+ is reduced
b. NADH is reduced
c. NAD+ is oxidized
d. NADP+ is oxidized
e. FAD is oxidized - ANSWER-a. NADP+ is reduced
What is the matrix?
a. The surface of a cell
b. The fluid part of the nucleus
c. The interior part of the mitochondrion
d. The space within the endoplasmic reticulum
, e. The fluid filled space of the chloroplast - ANSWER-c. The interior part of the
mitochondrion
Membranes are composed principally of:
a. Carbohydrates
b. Cells
c. Amino acids
d. Phospholipids
e. Nucleotides - ANSWER-d. Phospholipids
What distinguishes the smooth ER from the rough ER?
a. The rough ER has DNA, the smooth ER does not
b. The smooth ER is connected to the nuclear envelop, the rough ER is not
c. The rough ER makes vesicles, the smooth ER does not
d. The rough ER has ribosomes, the smooth ER does not
e. The smooth ER is membranous, the rough ER is not - ANSWER-d. The rough ER
has ribosomes, the smooth ER does not
Which of the following is NOT a eukaryote?
a. Giardia (protist)
b. Coyote (animal)
c. Lily (plant)
d. E. coli (bacteria)
e. Yeast (fungus) - ANSWER-d. E. coli (bacteria)
A scientific observation that has withstood many attempts to falsify it, and is
generally accepted as truth is called a(n): a. Fact
b. Theory
c. Hypothesis
d. Statement
e. Axiom - ANSWER-b. Theory
Where do the light-independent reactions of photosynthesis take place?
a. In the intermembrane space
b. In the matrix
c. In the stroma
d. In the cytoplasm
e. In the thylakoid space - ANSWER-c. In the stroma
Why does a plant need water?
a. The water is used to dissolve the organic materials necessary for photosynthesis
b. The water molecule is split, supplying electrons to the photosystems
c. The oxygen of the water molecule is used in glucose production
d. Water's hydrogen bonds stabilize the chemical reactions of photosynthesis
e. It gets thirsty otherwise - ANSWER-b. The water molecule is split, supplying
electrons to the photosystems
Where do the protons get pumped TO in cellular respiration?
a. Thylakoid space
b. Intermembrane space
