Free Printable Homeostasis and feedback

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Homeostasis and feedback - 9ADV

Total questions: 13

Worksheet time: 8mins

Name

Class

Date

The two types of feedback systems that help organisms maintain homeostasis are:

positive and negative

receptor and effector

static and dynamic

minor and major

Maintaining body temperature is an example of a:

negative feedback loop

positive feedback loop

When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which allows glucose to enter the cell, lowering blood sugar levels. This is an example of a:

Positive Feedback mechanism

Negative Feedback mechanism

An example of a negative feedback mechanism is ...

Blood glucose regulation

Blood pressure regulation

Thermoregulation

All of the above

An example of a positive feedback mechanism is ____________.

Childbirth

Blood Pressure regulation

Body Temperature regulation

All of the above

Homeostasis

allows for a wildly fluctuating internal environment

is impossible in vertebrates

is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation

is the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation

If the environment gets cold, we will often shiver in order to:

keep body temperature the same as the external temperature

decrease body temperature

increase body temperature

regulate blood pressure

What type of feedback mechanism is shown?

negative

neutral

positive

If the calcium in your blood decreases below homeostasis levels, a gland in the brain will sense the decrease and send a chemical message to your bones. Your bones will release calcium into the blood, bringing blood calcium levels back up. This is an example of what type of feedback?

Positive Feedback Response

Negative Feedback Loop

10.

This organ produces the hormones that help regulate blood glucose levels.

pancreas

liver

small intestine

gall bladder

11.

What hormone is produced in the pancreas that raises blood sugar?

Insulin

Glucagon

Ketones

Glucose

12.

The temperature regulation center in the brain of a human

hypothalamus

thermoregulation

receptor

negative feedback

13.

_____________ is released by your pancreas when blood glucose levels get too high.

glucose

glucagon

oxygen

insulin

Reset

Homeostasis and feedback - 9ADV

Total questions: 13

Worksheet time: 8mins

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