Biology

Question 1

What is the function of the cytoplasm

Answer 1

Where chemical reactions take place

Question 2

What is osmosis?

Answer 2

Movement of water molecules across a partially permeable
membrane from a region of higher water concentration to a
region of lower water concentration

Question 3

State the relationship between size and surface area to volume ratio

Answer 3

The bigger the size, the smaller the Surface area to Volume ratio

Question 4

Name the blood vessel type found within organs that link arteries and veins

Answer 4

Capillaries

Question 5

Name the process of the transport of dissolved sugars in plants

Answer 5

Translocation

Question 6

Why do sperm cells have lots of mitochondria?

Answer 6

To provide energy through aerobic respiration for swimming to
the egg

Question 7

What is meant by communicable disease?

Answer 7

Diseases which can be spread between people

Question 8

How can the HIV virus be spread?

Answer 8

Sexual contact, shared needles, blood transfering

Question 9

Which part of the plant allows gases to diffuse in and out of leaves?

Answer 9

Stomata

Question 10

State 3 ways white blood cells defend the body.

Answer 10

Engulf pathogens, Produce antibodies, Produce antitoxins

Question 11

Describe an aseptic technique and why it should be used

Answer 11

Heating inoculating loop in Bunsen burner to sterilize

Question 12

What is a vaccine?

Answer 12

Dead/inactive/weakened form of a pathogen

Question 13

What is the mitochondria

Answer 13

Where most energy is released during respiration

Question 14

which 2 parts of a plant cell cannot be found in an animal cell

Answer 14

chloroplast, cell wall

Question 15

Oxygen is taken into cells by the process of which?
diffusion
osmosis
respiration

Answer 15

Diffusion

Question 16

Cells need oxygen for which?
breathing
photosynthesis
respiration

Answer 16

Respiration

Question 17

The parts of cells that use up the most oxygen are the -
membranes
mitochondria
nuclei

Answer 17

Mitochondria

Question 18

Some cells produce oxygen in the process of?
diffusion
photosynthesis
respiration

Answer 18

Photosynthesis

Question 19

Give one substance that plants absorb by active transport.

Answer 19

minerals/ions

Question 20

Name one type of microorganism that causes disease in humans.
Do not refer to viruses in your answer

Answer 20

Bacteria/protists/Fungi

Question 21

water loss by evaporation is called?

Answer 21

Transperation

Question 22

Name one food molecule absorbed into epithelial cells by active transport.

Answer 22

sugar/glucose

Question 23

Suggest how the highly folded cell surface helps the epithelial cell to absorb soluble food

Answer 23

larger surface area

Question 24

Suggest why epithelial cells have many mitochondria

Answer 24

active transfer requires energy from respiration

Question 25

active transport is?

Answer 25

the movement of dissolved molecules into or out of a cell through the cell membrane, from a region of lower concentration to a region of higher concentration