Biology

Question 1

What is gas exchange?

Answer 1

Gas exchange is when you breathe and take in oxygen and give out Carbon Dioxide. This takes place inside your lungs.

Question 2

Oxygen - ?

Carbon Dioxide - ?

Answer 2

02

CO2

Question 3

The longer part of the lungs is called?

Answer 3

Bronchus

Question 4

The lines coming of off the bronchus are called?

Answer 4

Bronchiole

Question 5

The small balls on the end of the bronchiole are called ?

Answer 5

Alveoli

Question 6

The air first enters the ____ and _____. It then travels down the _______ into the _____.

Answer 6

Nose
Mouth
Trachea
Lungs

Question 7

When we inhale ______ gas goes into the _____. When we exhale ____ _____ gas goes out of the _____. We call this ___ _____. The _______ is the last part of the journey for air.

Answer 7

Oxygen
Lungs
Carbon Dioxide
lungs
Gas exchange
Alveoli

Question 8

What is a drug?

Answer 8

A drug is a chemical substance that affects the way the body works. They alter the chemical reactions that take place inside your body.

Question 9

What are the 4 main categories of drugs and what do they do?

Answer 9

Painkillers- get rid of pain
Hallucinogens- Causes hallucination
Stimulants- Less active for physical things
Depressants- Makes you depressed

Question 10

What is drug addiction?

Answer 10

It is when your body gets used to the changes caused by a drug and becomes dependant on the drug. If you try and stop taking a drug you will suffer from withdrawal symptoms like headaches, anxiety or sweating.

Question 11

What is smoking?

Answer 11

Smoking is a habit of inhaling and exhaling the smoke of tobacco or a drug.

Question 12

Carbohydrates - ?
Lipids - ?
Protein - ?
Vitamins - ?
Minerals - ?
Dietary fibre - ?

Answer 12

Carbohydrates - sugars and starches.
Lipids - fats and oils.
Protein - Meats and dairy.
Vitamins - Needed for you to grow.
Minerals - Make red blood cells.
Dietary fibre - Adds bulk to your food. Technically not a nutrient.

Question 13

Where does energy come from?

Answer 13

Food

Question 14

What do underweight people often suffer from?

Answer 14

They suffer from health problems, such as poor immune system and lack of energy to do things and are often tired. They are likely to suffer from lack of vitamins or minerals.

Question 15

If the energy content in the food you eat is more then the energy you use, you….

Answer 15

gain body mass. This is stored as fat under the skin.

Question 16

What do overweight people suffer from?

Answer 16

They have an increased risk of heart disease, strokes, diabetes, and some cancers.

Question 17

What is the order of the Digestive system?

Answer 17

Mouth, oesophagus, stomach, small intestines, large intestines and rectum also anus.

Question 18

What is an enzyme?

Answer 18

An enzyme breaks down different nutrients and there are 3 main types.

Question 19

Where does respiration take place?

Answer 19

A cell

Question 20

What is respiration?

Answer 20

The process of cells used to release energy from food. All living organisms carry out respiration.

Question 21

What is anaerobic respiration?

Answer 21

Anaerobic respiration happens in muscles during hard exercise. Lactic acid builds up and causes painful cramps. The extra oxygen you inhale breaks down lactic acid. The oxygen needed for this process is called the oxygen debt.

Question 22

What is the gas needed for aerobic respiration?

Answer 22

Oxygen

Question 23

What organ is used to get gas into the body?

Answer 23

Lungs

Question 24

What are some other substances needed for aerobic respiration?

Answer 24

Sugar and glucose

Question 25

What is Fermentation?

Answer 25

It is when anaerobic respiration in plants and microorganisms produces ethanol and carbon dioxide instead of lactic acid.

Question 26

What is biotechnology?

Answer 26

It’s the use of biological processes of organisms to create useful products.