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ap marieb ch24 quiz

Anat and phys Marieb chap 24 quiz

A young athlete is admitted to the hospital with diarrhea, vomiting, bone and joint pain, hyperglycemia, and tingling sensations. What is the problem? overdose of vitamin or mineral supplements
Carbohydrates can be converted into nucleic acid T/F False (amino acid true)
Proteins are essential for production of energy T/F False (enzymes hormones hemoglobin true)
The amino acid pool is the body’s total supply of amino acids in the body’s proteins T/F False
A negative nitrogen balance occurs when protein breakdown excels protein synthesis T/F True
The most abundant dietary lipids in the diets of most Americans are triglycerides. T/F True
The body is considered to be in nitrogen balance when the amount of nitrogen ingested in lipids equals the amount excreted in urine. T/F False (protein breakdown equals synthesis True)
The body requires adequate supplies of only three minerals (calcium, sodium, chloride) and trace amounts of all others. T/F False (several minerals)
A deficit of potassium can cause rickets. T/F False (calcium True)
______ is a Ten-step enzymatically driven process that converts glucose into pyruvic acid glycolysis
Small amounts of ATP are formed by _____ Substrate level phosphorylation
During glucose oxidation, pyruvic acid decomposes to CO2 in the ______ Kreb’s cycle
The _______ produces the most ATP generation during cellular respiration and requires oxygen electron transport chain
Anabolism includes reactions in which ________. larger molecule
Oxidation reduction reactions may involve the loss of hydrogen and electrons T/F True
In the electron transport chain, ATP is formed by _________ oxidative phosphorylation
Lipogenesis occurs when ATP and glucose levels are low T/F False
Gluconeogenesis is the process in which ________. glucose is formed from noncarbohydrate precursors
In gluconeogenesis, during the postabsorptive state, amino acids and ________ are converted to glucose. clycerol
Proteins yield the highest amount of energy per gram when metabolized T/F False (fats True)
Glycolysis relies on substrate-level oxidation for the four ATP produced in this pathway. T/F False
Most of the ATP are produced by substrate-level phosphorylation. T/F False
Most ATP from cellular respiration are produced directly in the Krebs cycle. T/F False
Oxidation of FADH2 eventually yields four ATP via oxidative phosphorylation. T/F True
The process of splitting glucose through a series of steps that produces two pyruvic acid molecules is called ________. glycolysis
Glycolysis is a series of six chemical steps, most of which take place in the mitochondria. T/F False (10 true)
Glycolysis is a series of six chemical steps, most of which take place in the mitochondria. T/F false (little protein)
arbohydrate and fat pools are oxidized directly to produce cellular energy, but amino acid pools must first be converted to a carbohydrate intermediate before being sent through cellular respiration pathways. T/F True
Glycogen is formed in the liver during the ________. absorptive state
As the body progresses from the absorptive to the postabsorptive state, only the ________ continues to burn glucose while every other organ in the body mostly switches to fatty acids. Brain
Absorption of glucose from the GI tract is a source of glucose during the postabsorptive state T/F False
The omega-3 fatty acids have a powerful antiarrhythmic effect on the heart and also make blood platelets less sticky, thus helping to prevent spontaneous clotting, and they lower blood pressure. T/F True
Chopping wood on a hot but breezy afternoon, John stumbled into the house and immediately fainted. His T-shirt was wringing wet with perspiration, pulse was faint and rapid. heat stroke or heat exhaustion? What should you do to help John's recovery? Heat exhaustion. To help his recovery, he should be given fluid and electrolyte replacement therapy and should be cooled down.
Vasoconstriction of peripheral blood vessels is a heat loss mechanism T/F False (dilation true)
Created by: hkrawietz on 2011-07-24

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