Homeostasis refers to

• the maintenance of a constant heart beat.

• the dynamic processes occurring in the kidney.

• the static unchanging environment factors.

• the constancy of the internal environment of an organism.

Tags

NGSS.HS-LS1-3

The figure above shows a part of the nephron.Which of the following is true about the processes that happen to blood in X, glucose in Y and water in Z?

• X: Diffusion , Y: Active transport , Z: Osmosis

• X: Osmosis, Y: Re-absorption, Z:Diffusion

• X: Active transport, Y: Diffusion, Z:Reabsorption

• X: Ultra filtration, Y: Assisted diffusion, Z: Osmosis

About 85% of water is reabsorbed from the filtrate at

• Bowman's capsule.

• Proximal uriniferous tubule.

• Collecting duct.

• Henle's loop.

The substance present in blood passes through the glomerulus and the Bowman's capsule by a process called

• diffusion.

• ultra filtration.

• active transport.

• osmosis.

Which one of the following substances can pass into the Bowman's capsule?

• Serum albumin.

• Serum globulin.

• Ascorbic acid.

• Fibrinogen.

Which one of the following is totally reabsorbed?

• Water.

• Urea.

• Glucose.

• Sodium.

Reabsorption of useful substances from the filtrate begins at the

• Proximal tubule.

• Henle's loop.

• Collecting duct.

• Bowman's capsule.

The mechanism which maintains the

physical and chemical characteristics of the body in a balanced and stable

state is called

• growth.

• homeostasis.

• development.

• excretion.

The process whereby the kidney maintains the concentration of water, salt and ions at an optimum level is called

• osmoregulation.

• metabolism.

• homeostasis.

• excretion.

Components of human blood plasma which enter the Bowman's capsule and form the glomerular filtrate are

• urea, mineral salts, water glucose, fibrinogen.

• urea, mineral salts, water, glucose, amino acid.

• albumen. urea, mineral salts, water, glocose, amino acid.

• urea, mineral salts, water, vitamin, amino acid, globulin.