Glycolysis is best defined as a catabolic reaction based upon the
conversion of glucose into carbon dioxide and water
formation of sugar
conversion of glucose into two molecules of pyruvic acid
conversion of pyruvic acid into carbon dioxide and water
The Correct Answer is C
A. conversion of glucose into carbon dioxide and water: This describes the complete process of cellular respiration, including the Krebs cycle and electron transport chain, not glycolysis.
B. formation of sugar: Glycolysis does not form sugar; it breaks down glucose molecules into smaller intermediates to release energy.
C. conversion of glucose into two molecules of pyruvic acid: Glycolysis involves the breakdown of one glucose molecule (6 carbons) into two pyruvic acid molecules (3 carbons each). This catabolic process releases a small amount of ATP and NADH.
D. conversion of pyruvic acid into carbon dioxide and water: This occurs during the later stages of cellular respiration, specifically the Krebs cycle and oxidative phosphorylation, rather than during glycolysis itself.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. stratum granulosum:The stratum granulosum is a middle layer of the epidermis where keratinization begins. A splinter superficial to the dermis would pass through this layer, but it is not the deepest epidermal layer affected.
B. stratum basale:The stratum basale is the deepest layer of the epidermis, located directly above the dermis. A splinter penetrating just superficial to the dermis would reach this layer last, affecting the basal cells responsible for generating new epidermal cells.
C. stratum lucidum:The stratum lucidum is found only in thick, hairless skin such as the palms and soles, but it lies above the stratum granulosum. While a splinter in the sole could pass through this layer, it would not be the final epidermal layer injured.
D. stratum corneum:The stratum corneum is the outermost layer of dead keratinized cells. It would be the first layer penetrated by the splinter, not the final layer injured.
E. stratum spinosum:The stratum spinosum is located above the stratum basale and below the stratum granulosum. A splinter would pass through this layer before reaching the stratum basale, making it an earlier layer affected rather than the final layer injured.
Correct Answer is C
Explanation
A. forearm:The forearm has both sweat glands and sebaceous glands. Sebaceous glands are associated with hair follicles and are widely distributed across most of the body surface except for a few regions.
B. back:The back has abundant sebaceous glands along with sweat glands, which contribute to oily skin and acne formation in this area.
C. fingertips:Fingertips have sweat glands, particularly eccrine glands that help with grip and thermoregulation, but they lack sebaceous glands because there are no hair follicles in this region.
D. abdomen:The abdomen contains both sweat glands and sebaceous glands, distributed alongside hair follicles and skin structures.
E. buttocks:The buttocks also have both sweat and sebaceous glands, particularly around hair-bearing areas of skin.
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