Question 1:Green plants synthesize their food through the process of photosynthesis. The chemical process of photosynthesis can be summarized as in the schematic diagram below.(a) State the meaning of photosynthesis based on the schematic diagram. [2 marks](b) Starting with water and carbon dioxide as the raw materials, describe how a green plant produces starch molecules. … Read more
Question 1:(a) Diagram 1.1 shows human digestive system.Structure S in Diagram I is involved in the digestion of fat.(i) Name structure S.(ii) Name the enzyme which digests fat in S.(iii) Diagram 1.2 shows a mechanism of an enzyme reaction.Draw the diagram in the spaces III and IV provided in Diagram 1.2 to complete the mechanism … Read more
Question 1:(a)(i) After absorption of nutrients in the small intestine, the undigested substances in the colon result in the formation of faeces.Explain the formation of faeces in a human. [4 marks](ii) Malnutrition is a condition due to taking an unbalanced diet in which certain nutrients are lacking, in excess or in the wrong proportions.Explain the … Read more
6.11 Mechanism of Photosynthesis Chloroplasts1. Photosynthesis occurs in the chloroplasts of mesophyll cells and guard cells of the leaf.2. A chloroplast consists of two parts, stroma and grana (singular: granum).