Question

level 5
q1
which of the following does not occur
during nutrient absorption?
a. enzymes break down food
b. calcium produced in the bones
c. muscles contractions
d. glucose levels controlled by hormones
in the blood
level 5
q2
which of the following types of
muscles is responsible for
muscle contractions of the
digestive tract?
a. smooth muscle
b. skeletal muscle
c. cardiac muscle
level 5
q3
which organ releases insulin to
control glucose levels?
a. liver
b. gallbladder
c. stomach
d. pancreas
level 5
q4
this system is responsible for
sending signals to the entire
body-
a. circulatory system
b. endocrine system
c. nervous system
d. digestive system

Explanation:

• Q1: Enzymes break down food before absorption (digestion), muscle contractions (peristalsis) aid absorption, hormones control glucose. Calcium from bones is not part of absorption.
• Q2: Smooth muscle lines digestive tract and causes involuntary contractions. Skeletal is for voluntary movement, cardiac for heart.
• Q3: Pancreas releases insulin (beta cells) to regulate blood glucose. Liver stores glucose, gallbladder stores bile, stomach digests.
• Q4: Nervous system (neurons) sends signals. Circulatory transports, endocrine uses hormones, digestive processes food.

Answer:

• Q1: B. Calcium produced in the bones
• Q2: A. Smooth Muscle
• Q3: D. Pancreas
• Q4: C. Nervous system