LSS Cells

Which of these controls all the chemical reactions in the cell?

• cytoplasm
• nucleus
• protoplasm
• system

Where can deoxyribonucleic acid, DNA, be found?

• A
• B
• C
• D

Which of these differences between animal and plant cells is correct?

• Animal cells are smaller than plant cells.
• Only animal cells contain chromatin.
• Animal cells have more vacuoles than plant cells.
• Substances diffuse into animal cells but not into plant cells.

Which of these are common to both animal and plant cells?
1. Cytoplasm 2. Cell membrane 3. protoplasm

• 1 and 2 only
• 1 and 3 only
• 2 and 3 only
• 1, 2 and 3

A plant cell is firm and has a regular shape. This is because ______ .

• plant cells contain cell sap
• the large vacuole stores more liquid than small vacuoles
• the cell wall is made up of cellulose
• the chloroplasts strengthen the cytoplasm

Which of the following is a muscle cell?

• A
• B
• C
• D

Which of these are tissues?
1. Epidermal 2. Heart 3. Brain 4. Nerve

• 1, 2 and 3
• 1, 3 and 4
• 1 and 4
• 2, 3 and 4

A/an ________ is formed when two or more tissues work together to carry out the same function.

• organ
• specialised cell
• organelle
• system

Which of these organs are part of the excretory system? 1. Bladder 2. Intestines 3. kidneys

• 1 and 2 only
• 1 and 3 only
• 2 and 3 only
• 1, 2 and 3

An epithelial cell ____ .

• carries messages around the body
• can cause movement by contraction
• carries oxygen around the body
• protects cells beneath if from injury