Homeostasis & Negative Feedback Mechanism

Which of the following is NOT a feedback system?

• Input

• Receptor

• Control centre

• Effector

Tags

NGSS.HS-LS1-3

Which of the following statement referring to negative feedback?

• Mechanism in which the response enhances the original stimulus

• Mechanism that stops or reduces the intensity of the original stimulus

• Output is used to enhance the input

Tags

NGSS.HS-LS1-3

The definition of homeostasis is a

• Feedback mechanism in which the response enhances the original stimulus

• Feedback mechanism that stops or reduces the intensity of the original stimulus

• Process of maintaining stable condition of internal environment inside the body

• Process of maintaning stabler condition of environment outside the body

Tags

NGSS.HS-LS1-3

Which of the following factors in the human body are controlled by negative feedback?

         I   Temperature

         II   pH

         III  Water

IV Blood pressure

• I only

• I and II

• I, II and III

• I, II, III and IV

Tags

NGSS.HS-LS1-3

If you skip a meal, which of the following conditions would occur?

• Insulin levels would rise and glucose would be converted into glycogen

• Glucagon levels would rise and glucose would be converted into glycogen

• Insulin levels would rise, and glycogen would be converted into glucose

• Glucagon levels would rise, and glycogen would be converted into glucose

Tags

NGSS.HS-LS1-3

• Glucagon

• Insulin

• Testosterone

• Estrogen

Tags

NGSS.HS-LS1-3

Which of the following occur during hypoglycaemia?

• Stimulate body cells to take up glucose to increase the glucose metabolism

• Stimulate glycogenesis

• Stimulate glycogenolysis

• Increase the rate of conversion of excess glucose into fat in adipose tissue.

Which of the following occur during hyperglycaemia?

• Stimulate body cells to take up glucose to increase the glucose metabolism

• Stimulate glycogenolysis

• Stimulate gluconeogenesis

Tags

NGSS.HS-LS1-3

What is the organ that regulate blood glucose level?

• Heart

• Kidney

• Pancreas

• Liver

Tags

NGSS.HS-LS1-3

What is gluconeogenesis?

• the conversion of excess glucose into fat in adipose tissue.

• the conversion of glucose into glycogen in liver and muscle cells

• the breakdown of glycogen into glucose

• the conversion of amino acids and glycerol into glucose