Biology

Question 1

What does the mouth do

Answer 1

It physically breaks down food into smaller pieces

Question 2

What do the salivary glands do

Answer 2

Produce saliva that contains enzymes

Question 3

What is the oesophagus

Answer 3

The tube that food travels down on its way to the stomach

Question 4

What does the stomach do

Answer 4

Where food is churned with digestive juices(broken down into smsller peices)

Question 5

What does the liver do

Answer 5

Releases bile into the small intestine where it helps to digest fats

Question 6

What does the pancreas do

Answer 6

Makes and releases digestive juices containing enzymes to break down food

Question 7

What happens in the small intestine

Answer 7

here is where carbohydrates,proteins and lipids digest, then these nutrients are absorbed into the blood

Question 8

What happens in the large intestine

Answer 8

mainly fibre passes into the large intestine leaving solid waste then nutrients and moisture absorbed from the food

Question 9

What is the function of the rectum

Answer 9

It is where the faeces are stored before being passed out of the body

Question 10

What is the anus

Answer 10

The muscular ring where faeces pass out of the body

Question 11

What is an enzyme

Answer 11

Biological molecules called catalysts ( speed up reactions)

Question 12

What does bile do

Answer 12

Breaks down large molecules of lipids into smaller ones

Question 13

What is a lipid

Answer 13

Fats and oils

Question 14

Why does your blood need nutrients

Answer 14

To carry vitamins minerals proteins fats and sugars around the body

Question 15

What is the function of mitochondria

Answer 15

Sites of aerobic respiration provides energy for the cell

Question 16

What is osmosis

Answer 16

Movement of water particles from a region of low solute concentration to a higher solute concentration through a semi permeable membrane

Question 17

What are the functions of red blood cells

Answer 17

Transport oxygen from lungs to body and return carbon dioxide

Question 18

How do vaccines protect against disease

Answer 18

A weekend pathogen is put in to you making your immune system produce antibodies without causing disease

Question 19

What is a antibiotic

Answer 19

A substance that kills or inhibits the growth of bacteria

Question 20

Word equation for photosynthesis

Answer 20

Carbon dioxide + Water → Glucose + Oxygen

Question 21

What is the role of chlorophyll in photosynthesis?

Answer 21

Abosorbs light energy which is used to convert carbon dioxide and water into glucose and oxygen

Question 22

What are pathogens

Answer 22

Microorganism that can cause disease

Question 23

What is herd immunity

Answer 23

A large population becomes immune to the disease reducing its spread

Question 24

What are monoclonal antibodies

Answer 24

Identical antibodies produced from single clone of cells

Question 25

What increases the risk of cardiovascular disease

Answer 25

Smoking diet lack of exercise high alcohol intake

Question 26

What is cancer

Answer 26

Uncontrollable growth of abnormal cells in the body

Question 27

What factors affect the rate of photosynthesis

Answer 27

Factors include light intensity, carbon dioxide concentration, and temperature

Question 28

What does photosynthesis do

Answer 28

Produce glucose and oxygen

Question 29

What is the function of the nucleus in a cell?

Answer 29

The nucleus contains genetic material (DNA) and controls the cell's activities.

Question 30

Difference between prokaryotic and eukaryotic

Answer 30

Prokaryotic cells lack a nucleus and membrane-bound organelles; eukaryotic cells have a nucleus and membrane-bound organelles.

Question 31

What is the role of the pancreas in digestion

Answer 31

Produce enzymes and bicarbonate to neutralise stomach acid so you don’t burn

Question 32

Function of small intestine

Answer 32

Where nutrients get absorbed

Question 33

What is the effect of temperature on the rate of photosynthesis?

Answer 33

As temperature increases, the rate of photosynthesis increases up to an optimum point, after which it decreases.

Question 34

What is the role of the immune system in fighting disease

Answer 34

The immune system identifies and destroys pathogens through the action of white blood cells.

Question 35

What is the effect of light intensity on the rate of photosynthesis?

Answer 35

As light intensity increases, the rate of photosynthesis increases up to a certain point, after which it plateaus

Question 36

What is the role of ribosomes in a cell?

Answer 36

Ribosomes are the sites of protein synthesis in the cell

Question 37

What is the function of bile in digestion?

Answer 37

Bile emulsifies fats, increasing the surface area for lipase action.

Question 38

What is the role of villi in the small intestine?

Answer 38

Villi increase the surface area for absorption of nutrients.

Question 39

What’s a Antigen

Answer 39

A molecule that triggers a immune response

Question 40

What is the role of white blood cells in the immune system?

Answer 40

White blood cells identify and destroy pathogens through phagocytosis and antibody production

Question 41

What is the difference between bacteria and viruses

Answer 41

Bacteria are living organisms that can reproduce on their own; viruses are non-living and require a host cell to reproduce.