Cambridge Year 7 Science Chapter 1.1, 1.2, 1.3

What is the function of the cell membrane?

• Produce proteins for the cell

• Store energy for the cell

• Transport oxygen to the cell

• Regulate what enters and exits the cell, and provide protection and support for the cell.

Describe the structure of a typical animal cell.

• Cell wall, chloroplasts, vacuole, mitochondria, cytoplasm

• Chloroplasts, cell wall, vacuole, centrioles, lysosomes

• Cell membrane, cytoplasm, mitochondria, nucleus

• Nucleolus, lysosomes, peroxisomes, centrioles, cell wall

Explain the role of the nucleus in a cell.

• The nucleus controls the cell's activities and contains genetic material (DNA).

• The nucleus is responsible for producing energy in the cell.

• The nucleus helps in the process of photosynthesis in the cell.

• The nucleus is involved in breaking down waste materials in the cell.

What are the characteristics of a nerve cell?

• Responsible for producing energy in the body

• Specialized for transmitting information throughout the body

• Designed for storing water in the body

• Meant for digesting food in the body

How do plant cells differ from animal cells?

• Plant cells have flagella, while animal cells do not.

• Plant cells have a large central vacuole, while animal cells do not.

• Plant cells have a nucleus, while animal cells do not.

• Plant cells have a cell wall and chloroplasts, while animal cells do not.

List three specialized cells and their functions.

• Neurons (function: transmit nerve impulses), Red blood cells (function: carry oxygen), Muscle cells (function: contract and relax to produce movement)

• Fat cells (function: transmit nerve impulses)

• Bone cells (function: carry oxygen)

• Skin cells (function: produce insulin)

What is the function of chloroplasts in plant cells?

• Protein synthesis

• Cellular respiration

• Energy storage

• Photosynthesis

Explain the function of the vacuole in plant cells.

• Stores carbon dioxide

• Regulates cell division

• Stores water, nutrients, and waste products, and helps maintain turgor pressure.

• Helps in photosynthesis

Function of red blood cell

• Produce antibodies
• Carry oxygen
• Regulate blood pressure
• Store carbon dioxide

Which animal cell does not have a nucleus?

• Nerve cell

• Red blood cell

• Auditory cell

• Ciliated cell