College Biology 1 Final Exam
2022
General differences between eukaryotic and prokaryotic cells are?
ANS:- Eukaryotic
cells have membrane bound organelles, prokaryotic cells generally do not.
Beta cells are cells
...
College Biology 1 Final Exam
2022
General differences between eukaryotic and prokaryotic cells are?
ANS:- Eukaryotic
cells have membrane bound organelles, prokaryotic cells generally do not.
Beta cells are cells in the human pancreas whose primary function is to produce and
secrete the protein hormone insulin. A beta cell would contain?
ANS:- An active
Golgi apparatus.
What is a reasonable explanation for why unsaturated fatty acids keep biological
membranes fluid at lower temperatures?
their tails, preventing tight packing of adjacent lipids.
ANS:- Unsaturated fatty acids have kinks in
What is not found in chloroplasts?
ANS:- Thylakoids, DNA, Ribosomes and an
electron transport proteins.
What is found in plant cells, but not in animal cells?
ANS:- Central vacuole.
In a plant cell DNA is found where?
ANS:- In the nucleus, mitochondria, and
chloroplasts.
What central structures grows out to the centrosome, and provides compression
resistance for the cell
? ANS:- Microtubules.
What cellular structures interact with myosin motor proteins to produce contraction in
human skeletal muscles
? ANS:- Microfilaments.
What molecules would you expect to move most quickly through the plasma
membrane via passive diffusion (directly through the phospholipid bilayer)?
ANS:-
Oxygen (O2)
What structures would most likely be associated with the cell-cell junction between a
nerve cell and a muscle cell?
ANS:- Gap junction.
White blood cells engulf bacteria through what process?
ANS:- Phagocytosis.
What functions are not associated with membrane proteins?
ANS:- Signal
transduction, Enzymatic activity, Transport, and Phosphorilation of ADP to ATP.
What is always true of a chemical reaction with a negative delta G?
ANS:- The
reaction is spontaneous.
What is not true of the citric acid cycle?
ANS:- 3 NADH are produced per pyruvate, 1
FADH2is produced per pyruvate and 1 ATP is produced per pyruvate.
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