Bio 2050 - Anatomy and Physiology » Fall 2020 » Biology of Cell

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Question #1
Which of the following choices describes three general functions cells must perform?
A.   Grow until dividing, store complex carbohydrates, generate antibodies
B.   Maintain shape, obtain nutrients, and dispose of wastes
C.   Respond to all hormones, maintain a waterproof barrier, give rise to gametes
D.   Take up oxygen, prevent water entry, undergo mitosis frequently
Question #2
Glycolipids are found on the
A.   outer layer of the cell membrane, and they help make the sticky sugar coating on its surface.
B.   middle layer of the cell membrane, and they function to transmit solutes through the membrane.
C.   inside of the cell, where they are a source of high-energy nutrition to power mitochondria.
D.   inner layer of the cell membrane, and they provide scaffold support to the cell membrane.
Question #3
Diffusion rate is fastest when the concentration gradient is
A.   slightest and temperature is highest.
B.   steepest and temperature is highest.
C.   slightest and temperature is at body temperature.
D.   steepest and temperature is at body temperature.
E.   slightest and temperature is lowest.
Question #4
Another name for the intracellular fluid is
A.   cytosol.
B.   cytoplasm.
C.   interstitial fluid.
D.   intercellular matrix.
E.   cisternae.
Question #5
The release of neurotransmitter from a neuron is an example of
A.   exocytosis and it requires expenditure of ATP.
B.   exocytosis and is a form of passive transport.
C.   receptor-mediated endocytosis and it requires expenditure of ATP.
D.   pinocytosis and it is a form of primary active transport.
E.   endocytosis and is a form of passive transport.
Question #6
The movement of glucose across a plasma membrane is achieved by
A.   facilitated diffusion.
B.   phagocytosis.
C.   ion pumps.
D.   receptor-mediated exocytosis.
E.   osmosis.
Question #7
Consider a cell with a total internal solute concentration of 0.9%. Placing the cell in which bath solution would result in creation of the greatest osmotic pressure in the cell?
A.   1.2% NaCl
B.   0.9% NaCl
C.   0.5% NaCl
Question #8
The shape of skeletal muscle cells is described as
A.   columnar.
B.   biconcave.
C.   cylindrical.
D.   spherical.
E.   irregular.
Question #9
The ________ is responsible for forming the outer, limiting barrier of a cell.
A.   plasma membrane
B.   mitochondrion
C.   ribosome
D.   centrosome
E.   peroxisome
Question #10
The organelles responsible for organizing microtubules that are part of the mitotic spindle are called
A.   centrioles.
B.   nucleoli.
C.   microvilli.
D.   cilia.
E.   vesicles.

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