UMN BIOL 1009 MIDTERM LATEST
1 (GIBSON) EXAM
QUESTIONS AND
ANSWERS 2026 - 2027
Which of the following is NOT surrounded by more than one
membrane?
1. chloroplasts
2. the nucleus
3. endoplasmic reticulum
4. mitochondria - ANSWERS-a plant or an animal
Animal cells contain
1. cell walls
2. large central vacuoles
3. chloroplasts
4. none of these - ANSWERS-4. none of these
Which of the following is one of the ways that the membranes of winter
wheat are able to remain fluid when it is extremely cold? - ANSWERS-
END OF
PAGE
1
, UMN BIOL 1009 MIDTERM LATEST
1 (GIBSON) EXAM
QUESTIONS AND
ANSWERS 2026 - 2027
by increasing the percentage of unsaturated phospholipids in the
membrane
What are the membrane structures that function in active transport? -
ANSWERS-integral proteins
Whenever energy is transformed, there is always an increase in the -
ANSWERS-entropy of the universe
Which of the following statements is representative of the second law of
thermodynamics? - ANSWERS-Cells require a constant input of energy
to maintain their high level of organization.
Which of the following statements best distinguishes hypotheses from
theories in science? - ANSWERS-Hypotheses usually are relatively
narrow in scope; theories have broad explanatory power.
END OF
PAGE
2
1 (GIBSON) EXAM
QUESTIONS AND
ANSWERS 2026 - 2027
Which of the following is NOT surrounded by more than one
membrane?
1. chloroplasts
2. the nucleus
3. endoplasmic reticulum
4. mitochondria - ANSWERS-a plant or an animal
Animal cells contain
1. cell walls
2. large central vacuoles
3. chloroplasts
4. none of these - ANSWERS-4. none of these
Which of the following is one of the ways that the membranes of winter
wheat are able to remain fluid when it is extremely cold? - ANSWERS-
END OF
PAGE
1
, UMN BIOL 1009 MIDTERM LATEST
1 (GIBSON) EXAM
QUESTIONS AND
ANSWERS 2026 - 2027
by increasing the percentage of unsaturated phospholipids in the
membrane
What are the membrane structures that function in active transport? -
ANSWERS-integral proteins
Whenever energy is transformed, there is always an increase in the -
ANSWERS-entropy of the universe
Which of the following statements is representative of the second law of
thermodynamics? - ANSWERS-Cells require a constant input of energy
to maintain their high level of organization.
Which of the following statements best distinguishes hypotheses from
theories in science? - ANSWERS-Hypotheses usually are relatively
narrow in scope; theories have broad explanatory power.
END OF
PAGE
2
