GCSE Combined Science Biology

Question 1

Which organelle is responsible for aerobic respiration in animal cells?

Accepted Answer

Mitochondria

Answer

Nucleus

Answer

Ribosome

Answer

Cell membrane

Question 2

What is the word equation for photosynthesis?

Accepted Answer

Carbon dioxide + water → glucose + oxygen

Answer

Glucose + oxygen → carbon dioxide + water

Answer

Glucose → ethanol + carbon dioxide

Answer

Oxygen + glucose → lactic acid

Question 3

In the human digestive system, where does most absorption of nutrients occur?

Accepted Answer

Small intestine

Answer

Stomach

Answer

Large intestine

Answer

Oesophagus

Question 4

What type of cell division produces genetically identical daughter cells?

Accepted Answer

Mitosis

Answer

Meiosis

Answer

Binary fission

Answer

Fertilisation

Question 5

Which of the following best describes the role of white blood cells in the immune system?

Accepted Answer

They defend against pathogens by producing antibodies and engulfing microorganisms

Answer

They carry oxygen around the body

Answer

They help blood to clot at wound sites

Answer

They transport dissolved nutrients

Question 6

A plant hormone called auxin causes shoots to grow towards light. What is this response called?

Accepted Answer

Phototropism

Answer

Gravitropism

Answer

Hydrotropism

Answer

Thigmotropism