Describe the function of the kidneys.

Which is NOT a function of the kidneys? (A) removal of waste products from the blood (B) maintenance of blood pH (C) regulation of water content of the blood (D) maintenance of homeostasis (E) excretion of carbon dioxide.

Which structure receives urine from a major calyx of the kidney?

a. ureter

b. minor calyx

c. urinary bladder

d. renal pelvis

A renal pyramid voids urine into the _________.

(a) minor calyx (b) major calyx (c) renal medulla (d) renal papilla (e) ureter

Which of the following is not a function of the kidneys?

a. gluconeogenesis, the formation of glucose from noncarbohydrate sources

b. release of erythropoietin to control erythrocyte production

c. control of blood pressure through the release of renin

d. production of plasma proteins to control blood volume

Which of the following is an effect of glucagon?

a. causes the liver to break down stored glycogen

b. causes adipose tissue to store fat

c. lowers blood glucose level

d. stimulates the liver to store glucose as glycogen

Glucagon ________.

A. triggers the conversion of glucose into glycogen.

B. stimulates the absorption of glucose from the blood.

C. triggers gluconeogenesis.

D. is considered a hypoglycemic hormone.

Glucagon stimulates which pathways?

a. gluconeogenesis

b. glycolysis

c. glycogenolysis

Explain the main purpose of the digestive system. In which organs does the digestion of carbohydrates, proteins, and fats take place?

Describe how and where the three important digestive system hormones described in this chapter coordinate digestion.

Where does digestion take place in sponges? ______________

Where does most chemical digestion take place? ____________________

An amoeba is a unicellular organism that doesn't have a stomach for digestion of food. Then, how does food storage and digestion take place in an amoeba?

Where does the majority of protein digestion take place? a. stomach, b. duodenum, c. mouth, d. jejunum.