Biology

Question 1

Cell Membrane

Answer 1

Controls the movement of substances in and out of a cell

Question 2

Nucleus

Answer 2

Contains DNA

Question 3

Mitochondria

Answer 3

Where energy is released through respiration

Question 4

Ribosomes

Answer 4

Site of protein synthesis

Question 5

Cytoplasm

Answer 5

Jelly-like substance, where chemical reactions happen

Question 6

Permanent Vacuole

Answer 6

Contains cell sap

Question 7

Chloroplasts

Answer 7

Contain chlorophyll to absorb light energy for photosynthesis

Question 8

Cell Wall

Answer 8

Made of cellulose, which strengthens the cell.

Question 9

Are animal cells and plant cells prokaryotic or eukaryotic?

Answer 9

Eukaryotic.

Question 10

Are Bacteria Prokaryotic or Eukaryotic?

Answer 10

Prokaryotic.

Question 11

What characteristics do Bacteria have?

Answer 11

• single-celled
• no nucleus - have a single loop of DNA
• have small rings of DNA called plasmids
• smaller than eukaryotic cells

Question 12

Whats the function of a sperm cell?

Answer 12

fertilise an ovum (egg).

Question 13

Whats the function of a red blood cell?

Answer 13

to transport oxygen around the body.

Question 14

Whats the function of a muscle cell?

Answer 14

contract and relax to allow movement.

Question 15

Whats the function of a nerve cell?

Answer 15

carry electrical impulses around the body.

Question 16

Whats the function of a root hair cell?

Answer 16

absorb mineral ions and water from the soil.

Question 17

Whats the function of a palisade cell?

Answer 17

enable photosynthesis in the leaf.

Question 18

Osmosis

Answer 18

the diffusion of water from a dilute solution to a concentrated solution through a partially permeable membrane.

Question 19

Active transport

Answer 19

The movement of particles from a more dilute solution to a more concentrated solution using enery from respiration.

Question 20

Movement of particles for diffusion

Answer 20

High conctentration area to low concentration area

Question 21

Movement of particles for osmosis

Answer 21

Low concentration area to higher concentration area.

Question 22

Movement of particles for active transport

Answer 22

Low concentration area to higher concentration area

Question 23

Which ones require energy?
- Diffusion
- Osmosis
- Active Transport

Answer 23

Active Transport

Question 24

Example of Diffusion

Answer 24

Deodorant diffuses from the start of the classroom to the end of the classroom

Question 25

Example of Osmosis

Answer 25

Water moves by osmosis from a dilute solution in the soil to a concentrated solution in the root hair cell.

Question 26

Example of Active Transport

Answer 26

Used to absorb mineral ions into the root hair cells from more dilute solutions in the soil.