Biology Year 7

Question 1

Cytoplasm

Answer 1

This is a jelly-like substance where most chemical reactions happen.

Question 2

Cell membrane

Answer 2

This controls what enters and leaves the cell.

Question 3

Cell wall

Answer 3

This gives the cell shape and support and protects it.

Question 4

Nucleus

Answer 4

This is filled with cell sap and keeps the cell firm. This contains DNA (genetic material)

Question 5

Vacuole

Answer 5

This is filled with cell sap and keeps the cell firm. This contains DNA (genetic material)

Question 6

mitochondria

Answer 6

This is where the cell releases energy from food during respiration

Question 7

chloroplast

Answer 7

This is where photosynthesis happens. It contains a Green pigment called chlorophyll

Question 8

Sperm cell

Answer 8

These cells carry half the genetic information. They have tails to swim towards the egg cell

Question 9

Red blood cell

Answer 9

These cells are adapted to carry oxygen to cells
NO NUCLEUS

Question 10

Nerve cell

Answer 10

These cells can be very long (upto 2m) to carry messages around the body.

Question 11

Muscle cell

Answer 11

These cells can change their length to help us move.

Question 12

Root hair cell

Answer 12

The root hair gives these cells a bigger surface area to take in water from the soil.

Question 13

Ciliated Epithelial Cell

Answer 13

These cells are found in tubes leading to the lungs and in the oviduct. The hairs (called cilia) move dirt out of the lungs and help to move eggs along the oviduct.

Question 14

palisade cell

Answer 14

These cells contain chloroplasts to help the plant make food by photosynthesis.