Question 1

What is the primary function of negative feedback in biological systems?

Accepted Answer

To maintain homeostasis

Answer

To increase variations

Answer

To initiate cell division

Answer

To promote growth

Question 2

What does a negative feedback loop do when a deviation from a set point occurs?

Accepted Answer

It initiates a response to reverse the change

Answer

It maintains the change

Answer

It ignores the change

Answer

It amplifies the change

Question 3

Which of the following is an example of a variable regulated by negative feedback in the body?

Accepted Answer

Blood sugar levels

Answer

Growth hormone levels

Answer

Oxygen levels in the air

Answer

Metabolic rate

Question 4

What is a set point in the context of negative feedback?

Accepted Answer

The normal level that a biological variable should be maintained at

Answer

The maximum level of a variable

Answer

The minimum requirement for survival

Answer

A fluctuating variable

Question 5

How does negative feedback contribute to maintaining body temperature?

Accepted Answer

By triggering responses to cool down or heat up the body

Answer

By ignoring temperature fluctuations

Answer

By only helping in heating the body

Answer

By permanently fixing body temperature

Question 6

What happens during negative feedback when a biological variable returns to its set point?

Accepted Answer

The response is reduced or stopped

Answer

The response intensifies

Answer

The variable continues to change

Answer

No changes occur

Question 7

Which of the following processes is NOT typically regulated by negative feedback?

Accepted Answer

Rapid blood clotting

Answer

Heart rate regulation

Answer

Thyroid hormone levels

Answer

Body temperature regulation

Question 8

What is one advantage of negative feedback mechanisms in living organisms?

Accepted Answer

They help stabilize internal conditions

Answer

They promote rapid changes

Answer

They are always responsive to external conditions

Answer

They enhance variability

Question 9

Which of the following statements is true regarding negative feedback mechanisms?

Accepted Answer

They are essential for maintaining homeostasis

Answer

They operate independently of other systems

Answer

They are detrimental to biological processes

Answer

They only function in plants

Question 10

How do negative feedback loops differ from positive feedback loops?

Accepted Answer

Negative feedback loops reverse changes, while positive feedback loops amplify changes

Answer

Positive feedback loops reverse changes

Answer

They are the same

Answer

Negative feedback loops amplify changes

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