Co Ordination And Control

Question 1

Homeostasis

Answer 1

The maintenance of a relatively constant internal physiological environment of the body or part of the body (e.g. blood glucose level, pH, body temperature) in varying external conditions

Question 2

Stimulus-Response Model

Answer 2

A system in which any changes or variations (stimuli) in the internal environment are detected (by receptors); if a response is required, this is communicated to effectors to bring about some type of change or correction so the conditions can be brought back to normal

Question 3

Glucose

Answer 3

A simple carbohydrate and the simplest form of sugar

Question 4

Negative Feedback

Answer 4

A reaction that causes a decrease in function.

Question 5

Pancreas

Answer 5

A large gland in the body that produces and secretes the hormone insulin and an important digestive fluid containing enzymes

Question 6

Glycogen

Answer 6

The main storage carbohydrate in animals, converted from glucose by the liver and stored in the liver and muscle tissue

Question 7

Positive Feedback

Answer 7

A reaction that causes an increase in function

Question 8

Oxytocin

Answer 8

Hormone secreted from the pituitary gland that assists in the formation of bonds between mothers and their babies, and perhaps between people in close relationships

Question 9

Multicellular Organism

Answer 9

An organism that is composed of many cells. Most plants and animals are multicellular.