The pancreas secretes enzymes that enter the small intestine and chemically digest chyme. Choose the enzyme(s) that break(s) down fats.
A) carboxypeptidase
B) pancreatic lipase
C) trypsinogen
D) pancreatic amylase
Answer: B) pancreatic lipase
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In response to binding a neurotransmitter, a postsynaptic cell can
A) open chemically gated ion channels, causing graded potentials known as fast synaptic potentials, close ion channels via G proteins and second messenger systems, producing slow responses, and regulate protein synthesis and affect the metabolic activities of the postsynaptic cell. B) only regulate protein synthesis and affect the metabolic activities of the postsynaptic cell. C) open chemically gated ion channels, causing graded potentials known as fast synaptic potentials and regulate protein synthesis and affect the metabolic activities of the postsynaptic cell. D) only open chemically gated ion channels, causing graded potentials known as fast synaptic potentials. E) only close
A muscle with the greatest number of tendons is a ________ muscle.
Fill in the blank(s) with the appropriate word(s).
Creatine phosphate
A) cannot transfer its phosphate group to ADP B) is produced by the process of anaerobic respiration C) can replace ATP in binding to myosin molecules during contraction D) acts as an energy reserve in muscle tissue E) is only formed during strenuous exercise
When analyzing amylase activity in the lab, why are the test tubes incubated at 37 degrees C?
A) It is a convenient temperature in the lab setting. B) It is the optimal temperature for enzyme activity. C) It is the optimal temperature to denature the substrate. D) It is the optimal temperature to grow the substrate.