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BSC 108 EXAM 1-ALABAM AQUESTIONS AND ANSWERS 2024
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BSC 108 EXAM 1-ALABAM AQUESTIONS AND ANSWERS 2024
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BSC 108 EXAM 1-ALABAMAWhat are three differences between a prokaryotic cell and a eukaryotic cell? -
ANSWERS-Prokaryotic cells are smaller, simpler, and have fewer organelles than
eukaryotic cells. Prokaryotic cells lack membrane-bound organelles including a
nucleus but include ribosomes. They are also older in an evolutionary sense.
What are the functions of the cytoskeleton? - ANSWERS-To maintain cell shape
and to assist in the movement of organelles.
The active site of an enzyme - ANSWERS-both b and c are correct
(B. is the part of the enzyme where its substrate can fit.
C. can be used over and over again.)
Which of the following is NOT TRUE of energy? - ANSWERS-Potential energy
cannot be converted to kinetic energy.
The movement of molecules from high concentration to low concentration is -
ANSWERS-diffusion
In order for an enzyme to work properly - ANSWERS-all are true
(a. it must have a particular shape.
b. the temperature must be within certain limits.
, c. the pH must be within certain limits.)
An enzyme catalyzes a reaction by - ANSWERS-lowering the energy of activation
of a reaction
The process by which cells take in large solid material by vesicle formation is
called - ANSWERS-phagocytosis
Which of the following specifically refers to the movement of water? - ANSWERS-
osmosis
The amount of energy needed to get a chemical reaction started is known as the -
ANSWERS-energy of activation
If an animal cell is placed in a hypotonic solution, it will swell and burst. -
ANSWERS-true
Describe an example of diffusion. - ANSWERS-Diffusion is the movement of
molecules from where they are highly concentrated to where they are less
concentrated, such as the diffusion of smoke molecules throughout a room.
What is ATP? What is the importance of ATP inside cells? - ANSWERS-Adenosine
triphosphate. It is the most common energy-carrier molecule in cells, transferring
energy from one part of a cell to another.
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