Which of the following is a product of glycolysis?
Lactate
Carbon dioxide
Pyruvate
Acetyl-CoA
The Correct Answer is C
A. Lactate is produced during anaerobic metabolism (when oxygen is scarce) as a byproduct of glycolysis, but it is not the direct product of glycolysis itself.
B. Carbon dioxide is a byproduct of cellular respiration, specifically during the Krebs cycle, not glycolysis.
C. Pyruvate is the end product of glycolysis, where glucose is broken down into two molecules of pyruvate.
D. Acetyl-CoA is formed from pyruvate during the transition step before the Krebs cycle, not directly from glycolysis.
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Correct Answer is C
Explanation
A. Lactose is a sugar in breast milk and is not the only source of nutrition during the first 2-3 days postpartum.
B. Casein is a protein found in breast milk but not the sole source of nutrition for the infant.
C. Colostrum is the nutrient-rich first milk produced by the mother in the first 2-3 days postpartum and provides essential nutrients and antibodies to the newborn.
D. Meconium is the infant's first stool and not a source of nutrition.
Correct Answer is B
Explanation
A. Vagina: The vagina is the canal that leads from the cervix to the outside of the body, not the structure that connects the ovary to the uterus.
B. Uterine tube: The uterine tube, also known as the fallopian tube, connects the ovary to the uterus and is where fertilization typically occurs.
C. Urethra: The urethra is the tube that carries urine from the bladder to the outside of the body. It has no role in connecting the ovary to the uterus.
D. Vas deferens: The vas deferens is a structure in the male reproductive system that transports sperm from the testes. It does not exist in the female reproductive system.