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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

Cellular Metabolism

True/False Quiz

Please answer all questions


1	The nucleus contains the genes necessary for most of the cell functions.
		A)	True
		B)	False


2	Any change in a DNA sequence is called a mutation and may happen for a number of reasons.
		A)	True
		B)	False


3	A mutation always has a damaging effect on cells.
		A)	True
		B)	False


4	PKU is a disease, which results from the excessive breakdown of phenylalanine caused by a genetic defect.
		A)	True
		B)	False


5	When two monosaccharides are joined together, usually a molecule of water is also produced.
		A)	True
		B)	False


6	The removal of water during a synthesis is referred to as hydration.
		A)	True
		B)	False


7	When glycerol and fatty acids combine to form a fat, water is also produced.
		A)	True
		B)	False


8	Most enzymes are derived from some type of protein.
		A)	True
		B)	False


9	Enzymes are catalysts that alter chemical reaction rates by chemically combining with the substrate.
		A)	True
		B)	False


10	During the formation of an enzyme-substrate complex, the enzyme combines with what are termed the specific active sites on the substrate.
		A)	True
		B)	False


11	Humans normally synthesize the proteins and vitamins that are the essential components of enzymes.
		A)	True
		B)	False


12	All biochemical reactions must have some source of energy.
		A)	True
		B)	False


13	Most of the energy in human cells is derived from reactions that require oxygen.
		A)	True
		B)	False


14	Oxygen will increase the rate of glycolysis.
		A)	True
		B)	False


15	Carbohydrates could travel down catabolic pathways and result in energy, or anabolic pathways and be stored as glycogen or lipid.
		A)	True
		B)	False


16	Some of the reactions within a mitochondrion do not require oxygen in order to proceed.
		A)	True
		B)	False


17	During glycolysis, glucose becomes bound to phosphate in a process called phosphorylation.
		A)	True
		B)	False


18	Glucose is converted to fructose during glycolysis.
		A)	True
		B)	False


19	Cytochrome oxidase refers to a group of Kreb cycle enzymes.
		A)	True
		B)	False


20	It is possible that one could produce body fat from eating excess carbohydrates.
		A)	True
		B)	False


21	There are about 20 amino acids that are considered to be essential and must be obtained from the diet.
		A)	True
		B)	False


22	The direction that metabolic pathways take is directly controlled by the amount of substrate available.
		A)	True
		B)	False


23	The synthesis of mRNA from DNA is called transcription.
		A)	True
		B)	False


24	The synthesis of proteins occurs during the transcription stage of RNA.
		A)	True
		B)	False

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