S2 Excretory System

The structural unit of the kidneys is the

• nephron

• alveoli

• villi

• capillary

Which of the following should not be found in the bladder of a correctly functioning human excretory system

• amino acids

• salt

• protein

• glucose

• water

Blood leaves the capillaries in the Bowman's capsule in what process?

• reabsorption

• filtration

• osmotic pressure

• systolic absorption

In a nephron, filtrate comes out of the capillary and into the

• tubule

• collecting duct

• Bowman's capsule

• proximal tubule

Which of the following options correctly identifies a function of the proximal convoluted tubule?

• absorbs amino acids

• absorbs salt

• absorbs urea

• absorbs water

After the ascending loop of Henle, waste is usually

• high in concentration

• low in concentration

• high in glucose

• high in pH

Rate of filtration of fluid is usually determined by

• blood type

• osmosis

• blood pressure

• blood volume

Which of the following would you not expect to find in the collecting duct

• urea

• salt

• glucose

• proteins

• red blood cells

Salt is absorbed in the ascending loop of Henle via

• active transport

• exocytosis

• pinocytosis

• phagocytosis

A ball of capillaries in a nephron is known as the

• Bowman's capsule

• tubule

• loop of Henle

• glomerulus