n5 unit 1 revision questions

What is the process called when a parent cell divides to produce two identical cells?

• Fusion

• Meiosis

• Mitosis

• Fission

What does DNA stand for?

• Dioxyribose Nucleic Acid

• Dioxyribonucleic Acid

• Deoxyribose Nucleic Acid

• Deoxyribonucleic Acid

What is the role of enzymes in biological reactions?

• They are used up in reactions

• They stop reactions

• They speed up reactions

• They slow down reactions

Which of the following is a product of aerobic respiration?

• Oxygen

• Lactic Acid

• Ethanol

• Carbon Dioxide

What is the main purpose of photosynthesis in plants?

• To absorb water

• To release carbon dioxide

• To produce oxygen

• To make food

What is a gene?

• A type of microorganism

• A type of enzyme

• A sequence of DNA that codes for a protein

• A type of cell

What is the main use of stem cells?

• To break down food

• To create new species

• To replace damaged or diseased organs

• To produce energy

What is the main advantage of using biological washing powders?

• They work at lower temperatures

• They are cheaper

• They smell better

• They are more colorful

What is biofuel?

• Fuel made from coal

• Fuel made from water

• Fuel made from methane produced by bacteria

• Fuel made from oil

What is a controversial concern with genetic engineering in plants?

• It is too expensive

• It is too slow

• It may not be safe to eat

• It is not effective