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

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