CIE iGCSE Co-Ordinated Science B1.1 Characteristics of living organisms Exam Style Questions Paper 1
▶️ Answer/Explanation
Respiration is the correct term for the chemical reactions that break down nutrient molecules to release energy.
Excretion removes waste, nutrition is the intake of materials, and photosynthesis is a plant process that makes glucose using light.
✅ Answer: (D)
Excretion removes waste, nutrition is the intake of materials, and photosynthesis is a plant process that makes glucose using light.
✅ Answer: (D)
▶️ Answer/Explanation
Growth is defined as a permanent increase in size and dry mass of an organism. Excretion removes waste, respiration releases energy, and sensitivity detects stimuli. Only growth matches the description of a permanent increase in size.
✅ Answer: (B)
✅ Answer: (B)
▶️ Answer/Explanation
The Venus fly trap closing its leaves to catch an insect is a response to a stimulus (touch), which is a characteristic of sensitivity. Excretion involves removal of waste products from the body, growth refers to a permanent increase in size, and reproduction is the process of producing offspring.
✅ Answer: (D)
✅ Answer: (D)
▶️ Answer/Explanation
Excretion is defined as the removal of waste products of metabolism from the body. Since the question states that the organism removes waste products of metabolism, this directly matches the definition of excretion. Nutrition is the intake of materials for energy and growth, respiration releases energy from food, and reproduction produces offspring — none of these involve removing waste.
✅ Answer: (A)
✅ Answer: (A)
▶️ Answer/Explanation
Respiration is the correct term for the chemical reactions that break down nutrient molecules to release energy.
Excretion removes waste, nutrition is the intake of materials, and photosynthesis is a plant process that makes glucose using light.
✅ Answer: (D)
Excretion removes waste, nutrition is the intake of materials, and photosynthesis is a plant process that makes glucose using light.
✅ Answer: (D)