Leptin is a hormone produced by the
a) placenta.
b) ovaries.
c) testes.
d) pituitary gland.
e) adipose tissue.
e
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Which of the following mechanisms produces the most ATP during cellular respiration?
A) oxidative phosphorylation B) oxidation reactions C) lactic acid production D) substrate-level phosphorylation
The gray matter in the CNS consists of parts of neurons not covered with myelin
Indicate whether the statement is true or false
Select the incorrect statement about cardiac muscle cells
a. all of them contract in the heart or none of them contract. b. they are capable of graded strength of contraction. c. they are produced constantly after infancy. d. they have an abundance of mitochondria. e. they have an abundance of myoglobin.
Which of the following is a double-membraned organelle consisting of a matrix and cristae?
A) Mitochondrion B) Golgi complex C) Smooth ER D) Nucleolus E) Rough ER