iGCSE Biology 2e, g, i Plant Nutrition, Gas exchange & Excretion

Which of the following is a function of the root system in plants?

• a. Photosynthesis

• b. Gas exchange

• c. Nutrient absorption

• d. Transpiration

What is the process by which plants produce glucose from carbon dioxide and water using sunlight?

• a. Photosynthesis

• b. Transpiration

• c. Respiration

• d. Nutrient absorption

Which gas is primarily absorbed by plants through the stomata?

• a. Oxygen

• b. Carbon dioxide

• c. Nitrogen

• d. Water vapor

Complete the equation: 6CO₂ + 6H₂0 -----> ? + 6O₂

•  

  C₈H₁₂O₆

• C₆H₁₂O₆

• C₄H₁₀O₈

• C₁₂H₈0₆

Which ion is essential for the production of chlorophyll?

• a. Magnesium

• b. Phosphorous

• c. Sodium

• d. Nitrogen

Which ion is essential for the production of Amino Acids?

• a. Magnesium

• b. Phosphorous

• c. Sodium

• d. Nitrogen

Which of the following is a function of the leaves in plants?

• a. Nutrient storage

• b. Gas exchange

• c. Root growth

• d. Water transport

Which of the following is a function of the phloem vessels in plants?

• a. Water and nutrient transport

• b. Transport of glucose and other organic compounds

• c. Gas exchange

• d. Nutrient storage

Which of the following is a function of the chloroplasts in plant cells?

• a. Site of photosynthesis

• b. Transport of water and nutrients

• c. Storage of glucose

• d. Regulation of gas exchange

What is the name of the process by which plants convert the energy in sunlight into chemical energy in the form of Glucose?

• a. Respiration

• b. Photosynthesis

• c. Transpiration

• d. Nutrient absorption