• an increase in gonadal hormones
• reaching the age of 13
• a decrease in gonadal hormones
• an increase in pituitary hormones - Correct Answer -a. an increase in
gonadalhormones
Which of the following is not a result of the estrogen surge in females during puberty?
• increased fat deposit in hips and breasts
• axillary and pubic hair growth
• deepening of the voice
• widening of the pelvis - Correct Answer -c. deepening of the voice
The hormone involved in the positive feedback cycle that causes labor contractions is
,• surfactant protein A
• progesterone
• oxytocin
• cortisol - Correct Answer -c. oxytocin
Virtually all of the protein or amino acid-based hormones exert their effects
throughintracellular .
• ions
• deactivators
• second messengers
• nucleotides - Correct Answer -c. second messengers
Chemical Substances secreted by cells into the extracellular fluids that regulate
themetabolic function of other cells in the body are called .
• activating cyclic AMP
• entering the nucleus of the cell and altering the expression of the gene
• binding specific receptors and activating G proteins
• stimulating the uptake of glucose - Correct Answer -b. entering the nucleus of
thecell and altering the expression of the gene
The major plasma protein is
• thrombin
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