← Combined Science syllabus

SingaporeCombined Science

Biology: Cells and Human Physiology

4 dot points across 4 inquiry questions. Click any dot point for a focused answer with worked past exam questions where available.

What are living things made of, and how do animal and plant cells differ?

Identify the parts of animal and plant cells and their functions, compare the two cell types, and describe how cells are organised into tissues, organs and systems
A focused N(A)-Level answer on cells. The parts of animal and plant cells and their jobs, the differences between them, and how cells build up into tissues, organs and systems.
7 min answer →

How do substances move into and out of cells across the cell membrane?

Describe diffusion and osmosis, explain how they move substances across cell membranes, and predict the effect of osmosis on plant and animal cells
A focused N(A)-Level answer on transport into cells. Diffusion down a concentration gradient, osmosis as the movement of water, and the effect of osmosis on plant and animal cells.
7 min answer →

How does the body break down food and absorb the nutrients it needs?

Describe the human digestive system, explain why large food molecules must be digested, and outline how digested food is absorbed in the small intestine
A focused N(A)-Level answer on digestion. The parts of the digestive system, why large molecules must be broken down, the role of enzymes, and absorption in the small intestine.
7 min answer →

How does blood carry substances around the body, and how is the system adapted for its job?

Describe the role of the heart, blood vessels and blood in transport, compare arteries, veins and capillaries, and state the functions of the main blood components
A focused N(A)-Level answer on transport. The heart and blood vessels, how arteries, veins and capillaries differ, and the jobs of red cells, white cells, plasma and platelets.
7 min answer →