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Hole's Human Anatomy & Physiology, 9/e

David Shier, Washtenaw Community College
Ricki Lewis, The University at Albany
Jackie Butler, Grayson County Community College

Cells

Multiple Choice Quiz

Please answer all questions


1	The __________ of a cell is the most critical factor in determining its function.
		A)	size
		B)	shape
		C)	age
		D)	chromosome number


2	The _________ of the cell directs its overall activities as well as houses its genetic material.
		A)	nucleolus
		B)	endoplasmic reticulum
		C)	nucleus
		D)	centrosome


3	Which feature is not a characteristic of the cell membrane?
		A)	It is made up of a phospholipid monolayer.
		B)	It can seal tiny breaks in itself.
		C)	It is selectively permeable and can regulate passage of material through it.
		D)	Many kinds of proteins are embedded in the membrane.


4	Molecules that are soluble in ___________ can pass through the fatty acid portion of the cell membrane unassisted.
		A)	water
		B)	cholesterol
		C)	gases
		D)	lipids


5	The type of proteins that guide cells on the move in the bloodstream to their destination at a wound site are _____________.
		A)	cell adhesion molecules
		B)	desmosomes
		C)	gap junctions
		D)	tight junctions


6	Choose the correct statement about cell membranes.
		A)	Desmosomes function both as ion channels and to strengthen cell membranes.
		B)	Ion channels function as gates, opening or closing to specific ions, under certain conditions.
		C)	Ions can pass readily through any portion of the cell membrane.
		D)	Cholesterol is not a necessary component of the cell membrane.


7	____________ provide(s) both structural support and the enzymes needed to make proteins from amino acid building blocks.
		A)	peroxisomes
		B)	Golgi apparatus
		C)	ribosomes
		D)	mitochondria


8	The tubular transport system that moves molecules throughout the cell is/are the _______________.
		A)	mitochondria
		B)	endoplasmic reticulum
		C)	ribosomes
		D)	peroxisomes


9	Choose the organelle that consists of microtubules and functions both in distributing chromosomes during cell division and in forming portions of cilia and flagella.
		A)	lysosome
		B)	mitochondria
		C)	vesicle
		D)	centrosome


10	In what part of the nucleus does ribosome production occur?
		A)	within nuclear pores
		B)	in the chromatin
		C)	in the area of the nucleolus
		D)	Ribosome production does not occur in the nucleus.


11	By which process does a glucose molecule move through a cell membrane protein carrier from a region of greater concentration to one of lower concentration?
		A)	diffusion
		B)	facilitated diffusion
		C)	active transport
		D)	filtration


12	Cells use up to 40% of their daily energy expenditure engaged in what important process?
		A)	active transport
		B)	endocytosis
		C)	exocytosis
		D)	facilitated diffusion


13	During what phase of the cell cycle does DNA replication occur?
		A)	mitosis
		B)	prophase of mitosis
		C)	G2 phase
		D)	S phase


14	Chromosomes align midway between centrioles during what phase of mitosis?
		A)	prophase
		B)	metaphase
		C)	anaphase
		D)	telophase


15	Which types of genetic control normally holds mitosis in check?
		A)	oncogenes
		B)	cell adhesion molecules
		C)	tumor suppressor genes
		D)	epidermal growth factors


16	The _____ of the cell has a function directly related to the synthesis of proteins.
		A)	mitochondrion
		B)	lysosome
		C)	ribosome
		D)	centriole


17	The _____ is a system of membranes designed to transport molecules within and out of cells.
		A)	vacuole
		B)	chromatin
		C)	nucleolus
		D)	endoplasmic reticulum


18	The organelle termed the _____ produces the microtubules important in cell division.
		A)	centrosome
		B)	nucleus
		C)	Golgi apparatus
		D)	cilium


19	DNA can be found within chromosomes during division but prior to division DNA exists as long thin _____ strands.
		A)	RNA
		B)	chromatin
		C)	chromosome
		D)	flagellar


20	Which chemicals on the surface of cells function to attach to and recognize hormones?
		A)	phospholipids
		B)	carbohydrates
		C)	proteins
		D)	steroids


21	The term _____ can be used to imply all of the chemical reactions within a cell.
		A)	metabolism
		B)	respiration
		C)	anabolism
		D)	catabolism


22	In the liver, the _____ may play a role in producing the enzymes that help detoxify drugs.
		A)	mitochondria
		B)	rough endoplasmic reticulum
		C)	smooth endoplasmic reticulum
		D)	Golgi apparatus


23	The cristae are structures found within the _____ organelle.
		A)	ribosome
		B)	lysosome
		C)	mitochondrion
		D)	endoplasmic reticulum


24	The _____ serves as the source of the flagellum in sperm.
		A)	nucleus
		B)	cilia
		C)	cell membrane
		D)	centriole


25	Which of the following does not belong with others?
		A)	diffusion
		B)	osmosis
		C)	active
		D)	passive


26	The movement of particles from an area of higher to lower concentration is called _____.
		A)	osmosis
		B)	diffusion
		C)	filtration
		D)	active transport

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