Photosynthesis & Plant MCQs with Answers

The movement of materials/sugar from the leaves to other tissues of the plant is called?

• A.Transpiration
• B.Translocation
• C.Transformation
• D.Transfusion

The photosynthetic green pigment called chlorophyll is contained in _?

• A.Xylem vessels
• B.Guard cells
• C.Epidermal cells
• D.Mesophyll cells

The central metal atom in chlorophyll is?

• A.Iron
• B.Magnesium
• C.Calcium
• D.Potassium

Photosynthesis involves which of the following?

• A.Conversion of light energy into chemical energy
• B.Absorption of carbon dioxide and release of oxygen
• C.Synthesis of glucose using water and sunlight
• D.All of these

Past Paper MCQ

Which two substances are produced by plants during photosynthesis?

• A.Protein and fat
• B.Oxygen and nitrogen
• C.Sugar and starch
• D.Water and carbon dioxide

The metal ion present in the porphyrin ring of chlorophyll is:

• A.Iron (Fe)
• B.Magnesium (Mg)
• C.Calcium (Ca)
• D.Zinc (Zn)

The carboxylation products of the C4 cycle are _?

• A.Malate and aspartate
• B.PGA and DHAP
• C.RuBP and PEP
• D.Glucose and fructose

Plants absorb sunlight to produce _?

• A.Oxygen
• B.Nitrogen
• C.Carbon dioxide
• D.Hydrogen

Photorespiration is a phenomenon that occurs in which cycle?

• A.Calvin cycle
• B.Glycolate cycle
• C.Krebs cycle
• D.Urea cycle

Which of the following is not essential for plants?

• A.Nitrogen
• B.Phosphorus
• C.Lead (Pb)
• D.Potassium