Homeostasis

Question 1

Homeostasis

Answer 1

The maintenance of a relatively constant environment for the cells within the body.

Question 2

What does homeostasis allow for 2

Answer 2

Help maintain optimal conditions for cellular reactions
Gives organisms independence fromt he external environment whilst still existing within it

Question 3

Negative feedback

Answer 3

When a factor moves away from the ideal, a set of processes move it back towards normal

Question 4

Hormones?

Answer 4

Molecules released by the endocrine glands directly into the blood that travel to the target organ to produce an affect

Question 5

Endocrine glands

Answer 5

A ductless gland that secretes hormones DIRECTLY into the blood

Question 6

Target cells

Answer 6

Cells that have receptors embedded in the plasma mem that are complementary in shape to specific hormone molecules. Only these cells will respond to that hormone

Question 7

Exocrine gland

Answer 7

A gland that secretes hormones into a duct

Question 8

Duct?

Answer 8

A tube lined with epithelial cells and conveying a secretion

Question 9

Function of Vasa Recta 2

Answer 9

Blood in Vasa Recta delivers O2 and nutrients to cells of the nephron
Carries water and mineral ions reabsorbed from the kidneys

Question 10

On a diagram how can the PCT be distinguished from the DCT

Answer 10

PCT have microvilli (brush border)