BIOL 101 UNC Final Exam Review Part
One (Unit 1 Exam)
Which image to the right is a correct representation of both the phospholipid bilayer and
active transport across this membrane?
A B C D E. none of the choices - Correct answer-E. none of the choices
The presence of glucagon leads to which reaction in a human liver cell?
a. The hydrolysis of starch
b. A dehydration reaction involving glucose
c. The hydrolysis of glycogen
d. A dehydration reaction involving glycogen. - Correct answer-c. The hydrolysis of
glycogen
Matthew was admitted to the hospital after a car ran over his foot. While waiting to see a
surgeon, Matthew was given intravenous (IV) fluids by a new intern. After some time,
Matthew started losing consciousness and tests showed he was experiencing brain
swelling. The attending doctor requested to see the IV fluids used and not surprisingly
to her, found that the new intern had mistakenly given fluids to Matthew that contained:
a. too little salt compared to his blood
b. too much salt compared to his blood - Correct answer-a. too little salt compared to his
blood
Your hair cells are made of organic compounds, recycled from molecules that you ate.
The cell wall of a tree's cells is made of organic compounds incorporated mostly from
molecules obtained from the plant's_______________.
a. roots b. leaves - Correct answer-b. leaves
When hydrogen and chlorine bond in HCl they share electrons. The electrons are pulled
slightly closer to chlorine than hydrogen. This is an example of a(n) ___________ bond.
a. ionic b. non-polar covalent c. polar covalent d. hydrogen - Correct answer-c. polar
covalent
Isocitrate + NAD+ ----> alpha ketoglutarate + NADH + H+
In the conversion of isocitrate to alpha ketoglutarate shown above, isocitrate is being:
a. oxidized b. reduced - Correct answer-a. oxidized
How does a plant's root cells, which are in the dark, underground, obtain energy to do
cellular work such as active transport across their membrane?
a. ATP made in the leaves via photosynthesis is moved to the root.
b. The root cell makes sugar using the dark reactions (Calvin cycle) of photosynthesis.
c. The root cell makes ATP by photosynthesis and cellular respiration.
, d. Sugar is made in the leaves via photosynthesis and moved to the root.
e. The root cell makes ATP by cellular respiration using material absorbed from the soil.
- Correct answer-d. Sugar is made in the leaves via photosynthesis and moved to the
root
Six male volunteers, who were physically fit and exercised routinely, were studied
during resting periods and during aerobic exercising periods. The researchers
measured metabolic water production for each volunteer under both conditions. Predict
what they found:
a. Metabolic water production decreased for all volunteers when exercising under
aerobic conditions.
b. Metabolic water production increased for all volunteers when exercising under
aerobic conditions.
c. There was no change in metabolic water production from resting to exercising under
aerobic conditions. - Correct answer-b. Metabolic water production increased for all
volunteers when exercising under aerobic conditions
Which provides evidence that taking hormone replacement therapy (HRT) causes Ojo
disease?
a. 6,000 women taking HRT also had a higher-than-average incidence of Ojo disease.
b. The rate of Ojo disease was not significantly different in 150 patients randomly
assigned to take HRT compared to 149 patients randomly assigned to no HRT.
c. The rate of Ojo disease was significantly lower in 450 patients randomly assigned to
take high doses HRT compared to 450 patients randomly assigned to low doses of
HRT.
d. In a sample of 7,400 people with Ojo disease in Ohio, 65% of them had HRT at some
point in their lives.
e. None demonstrate a causal relationship. - Correct answer-e. None demonstrate a
causal relationship
Place the following steps of cellular respiration in the correct order.
1. The citric acid cycle produces the energy carriers NADH, FADH, and ATP
2. If oxygen levels are adequate, pyruvate is transported into the mitochondrion. If
oxygen levels are very low, fermentation proceeds
3. Glucose is broken down to produce ATP and NADH
4. An electron transport chain coupled with chemiosmosis makes ATP from ADP and P.
a. 1, 2, 3, 4 b. 3, 1, 4, 2 c. 4, 3, 2, 1. d. 3, 2, 1, 4 e. none of the options are correct -
Correct answer-d. 3, 2, 1, 4
Your friend Judy says, "Plants obtain their energy directly from the sun." Evaluate the
claim and choose the most accurate conclusion:
a. The statement is false, because plants obtain their energy from cellular respiration,
by breaking down glucose which is produced during photosynthesis.
b. The statement is true, because solar energy drives photosynthesis, which directly
produces all the ATP used for a plant's cellular functions. - Correct answer-a. The
One (Unit 1 Exam)
Which image to the right is a correct representation of both the phospholipid bilayer and
active transport across this membrane?
A B C D E. none of the choices - Correct answer-E. none of the choices
The presence of glucagon leads to which reaction in a human liver cell?
a. The hydrolysis of starch
b. A dehydration reaction involving glucose
c. The hydrolysis of glycogen
d. A dehydration reaction involving glycogen. - Correct answer-c. The hydrolysis of
glycogen
Matthew was admitted to the hospital after a car ran over his foot. While waiting to see a
surgeon, Matthew was given intravenous (IV) fluids by a new intern. After some time,
Matthew started losing consciousness and tests showed he was experiencing brain
swelling. The attending doctor requested to see the IV fluids used and not surprisingly
to her, found that the new intern had mistakenly given fluids to Matthew that contained:
a. too little salt compared to his blood
b. too much salt compared to his blood - Correct answer-a. too little salt compared to his
blood
Your hair cells are made of organic compounds, recycled from molecules that you ate.
The cell wall of a tree's cells is made of organic compounds incorporated mostly from
molecules obtained from the plant's_______________.
a. roots b. leaves - Correct answer-b. leaves
When hydrogen and chlorine bond in HCl they share electrons. The electrons are pulled
slightly closer to chlorine than hydrogen. This is an example of a(n) ___________ bond.
a. ionic b. non-polar covalent c. polar covalent d. hydrogen - Correct answer-c. polar
covalent
Isocitrate + NAD+ ----> alpha ketoglutarate + NADH + H+
In the conversion of isocitrate to alpha ketoglutarate shown above, isocitrate is being:
a. oxidized b. reduced - Correct answer-a. oxidized
How does a plant's root cells, which are in the dark, underground, obtain energy to do
cellular work such as active transport across their membrane?
a. ATP made in the leaves via photosynthesis is moved to the root.
b. The root cell makes sugar using the dark reactions (Calvin cycle) of photosynthesis.
c. The root cell makes ATP by photosynthesis and cellular respiration.
, d. Sugar is made in the leaves via photosynthesis and moved to the root.
e. The root cell makes ATP by cellular respiration using material absorbed from the soil.
- Correct answer-d. Sugar is made in the leaves via photosynthesis and moved to the
root
Six male volunteers, who were physically fit and exercised routinely, were studied
during resting periods and during aerobic exercising periods. The researchers
measured metabolic water production for each volunteer under both conditions. Predict
what they found:
a. Metabolic water production decreased for all volunteers when exercising under
aerobic conditions.
b. Metabolic water production increased for all volunteers when exercising under
aerobic conditions.
c. There was no change in metabolic water production from resting to exercising under
aerobic conditions. - Correct answer-b. Metabolic water production increased for all
volunteers when exercising under aerobic conditions
Which provides evidence that taking hormone replacement therapy (HRT) causes Ojo
disease?
a. 6,000 women taking HRT also had a higher-than-average incidence of Ojo disease.
b. The rate of Ojo disease was not significantly different in 150 patients randomly
assigned to take HRT compared to 149 patients randomly assigned to no HRT.
c. The rate of Ojo disease was significantly lower in 450 patients randomly assigned to
take high doses HRT compared to 450 patients randomly assigned to low doses of
HRT.
d. In a sample of 7,400 people with Ojo disease in Ohio, 65% of them had HRT at some
point in their lives.
e. None demonstrate a causal relationship. - Correct answer-e. None demonstrate a
causal relationship
Place the following steps of cellular respiration in the correct order.
1. The citric acid cycle produces the energy carriers NADH, FADH, and ATP
2. If oxygen levels are adequate, pyruvate is transported into the mitochondrion. If
oxygen levels are very low, fermentation proceeds
3. Glucose is broken down to produce ATP and NADH
4. An electron transport chain coupled with chemiosmosis makes ATP from ADP and P.
a. 1, 2, 3, 4 b. 3, 1, 4, 2 c. 4, 3, 2, 1. d. 3, 2, 1, 4 e. none of the options are correct -
Correct answer-d. 3, 2, 1, 4
Your friend Judy says, "Plants obtain their energy directly from the sun." Evaluate the
claim and choose the most accurate conclusion:
a. The statement is false, because plants obtain their energy from cellular respiration,
by breaking down glucose which is produced during photosynthesis.
b. The statement is true, because solar energy drives photosynthesis, which directly
produces all the ATP used for a plant's cellular functions. - Correct answer-a. The
