Year 8 Life's Lego Pre-Test

Identify this diagram

• Atom
• DNA
• Gene
• Cell

Which statement is incorrect?

• W is the reproductive system
• Y is the excretory system
• X is the digestive system
• Z is the circulatory system

Which option best outlines why we need microscopes to study cells?

• Cells are so small they cannot be seen with the naked eye
• Cells are so far away
• To provide light to see cells
• To make cells smaller so we can observe the whole thing

A unicellular organism means:

• An organism that has many cells
• An organism that consists of only one cell
• A large organism
• An extra-terrestrial organism

Which option below contains parts of an animal cell?

• Cell membrane, chloroplast, cytoplasm
• Cell membrane, nucleus, cytoplasm
• Cell membrane, large vacuole, chloroplast
• Nucleus, cell wall, mitochondria

Biotechnology is the use of technology in the area of biology to improve health or the world. Which of the following is an example of biotechnology?

• Bandages
• Pest repellent
• Antibiotics
• Pace maker

Which of the following is related to cell theory.

• All non-living things are made of cells
• All cells come from pre-existing cells
• Cells are the basic unit of structure and function of all matter
• Cells can be created from nothing

Cells work together to make the following.

• tissues
• organs
• organ systems
• organism

In the diagrams A-D each small circle  represents a cell. Select the diagram that best represents a body system.

• A
• B
• C
• D

True or False: There are four chambers in the heart.

• True
• False