0654 CIE Biology iGCSE Hormones

A hormone is a chemical substance that ____________.

• Raises your heart rate

• Alters the activity of a target organ

• Increases your breathing rate

• Helps you run away

Where are hormones produced?

• Glands

• Pancreas

• Stomach

• Muscles

How do hormones travel to their target organ?

• In the digestive system

• In the lymphatic system

• In the airways

• In the blood

What is the name of the system that regulates hormones?

• Endocrine System

• Circulatory System

• Digestive System

• Nervous System

What is the name of the response when an animal is in danger?

• Dodge and duck

• Fast and furious

• Fight or flight

• Save and survive

Which hormone increases heart rate, breathing rate and dilates your pupils?

• Insulin

• Saliva

• Bile

• Adrenaline

The endocrine system sends signals that ___________ than the nervous sysetm

• last forever

• last longer

• last shorter

• last night

When does an action caused by a hormone end?

• When the hormone is broken down

• When the hormone runs out

• When the hormone gets to the target organ

• When the hormone gets to the gland