Homeostasis Key Words

Question 1

Define beta cells

Answer 1

Beta cells are a group of cells located in the islets of langerhans within the pancreas and produce insulin when blood glucose levels are high

Question 2

Define glucagon

Answer 2

Glucagon is a hormone that increases blood glucose levels and is produced by A-cells

Question 3

What is glucoregulation

Answer 3

The regulation of glucose within the body

Question 4

What is gluconeogenesis

Answer 4

A process by which non carbohydrate molecules such as amino acids and glycerol are converted to glucose

Question 5

What is glycogenesis

Answer 5

Is the conversion of glucose to glycogen and occurs when beta cells release insulin

Question 6

What is glycogenlysis

Answer 6

Is the process when glycogen is converted to glucose when a-cells produce glucagon which increases blood glucose levels

Question 7

Define alpha cells

Answer 7

Alpha cells are cells located in the islets of langerhans in the pancreas and produce glucagon when blood glucose levels are low

Question 8

What is insulin

Answer 8

A hormone produced by B-cells to decrease blood glucose levels

Question 9

What is negative feedback

Answer 9

Negative feedback is when a substance is restored back to its normal optimum level

Question 10

What is the difference between type 1 and type 2 diabetes

Answer 10

Type 1 diabetes is when a person does not produce any insulin or enough and type 2 diabetes is when a persons cells loses sensitivity to insulin so cannot absorb glucose

Question 11

What is the second messenger model for adrenaline

Answer 11

The second messenger model for adrenaline is when the hormone adrenaline binds to a glycoprotien receptor on a target cell to form a Horm-recp complex, activating a enzyme within the target cell that produces a chemical the chemical produced causes glycogen to convert to glucose