a. the basis of the body's design.
b. the vital components of foods.
c. self-contained living entities.
d. building blocks of the body.
d. energy ✅✅Among the cells' most basic needs are _____ and the oxygen with
which to burn it.
a. water
b. essential nutrients
c. building blocks
d. energy
a. water. ✅✅The first principle of diet planning is that the foods we choose must
provide energy and the essential nutrients, including:
a. water.
b. fuel.
c. oxygen.
d. carbon dioxide.
b. mutations ✅✅Which of the following determines the nature of the cell's work?
a. organs
b. mutations
c. red blood cells
d. genes
a. 3 days. ✅✅Cells lining the digestive tract replace themselves every:
a. 3 days.
b. 2 weeks.
c. 4 months.
d. 12 months.
a. muscle ✅✅Which of the following cells normally replace themselves once every
few years?
a. muscle
b. skin
c. digestive tract
d. red blood
, d. brain cells ✅✅Which of the following types of cells do not reproduce, and if
damaged by injury or disease, are lost forever?
a. skin cells
b. red blood cells
c. muscle cells
d. brain cells
e. b and c ✅✅The body's circulating fluids include:
a. intracellular fluid.
b. blood.
c. lymph.
d. a and b
e. b and c
d. lungs. ✅✅The blood picks up oxygen and releases carbon dioxide in the:
a. heart.
b. liver.
c. digestive system.
d. lungs.
a. liver ✅✅Which of the following has the special task of chemically altering absorbed
materials to make them better suited for use by other tissues?
a. liver
b. pancreas
c. stomach
d. small intestine
b. insulin. ✅✅When the pancreas detects a high concentration of the blood's sugar,
glucose, it releases:
a. lymph.
b. insulin.
c. antibodies.
d. glucagon.
c. glands ✅✅Hormones are secreted and released into the blood by _____.
a. antigens
b. enzymes
c. glands
d. antibodies