Understanding Plant Nutrition and Transport

What is the overall word equation for photosynthesis?

• Glucose + Oxygen → Carbon Dioxide + Water

• Carbon Dioxide + Water → Glucose + Oxygen

• Carbon Dioxide + Glucose → Water + Oxygen

• Water + Oxygen → Glucose + Carbon Dioxide

Which pigment is primarily responsible for absorbing light energy during photosynthesis?

• Chlorophyll

• Carotene

• Xanthophyll

• Anthocyanin

Which mineral ion is essential for the synthesis of chlorophyll in plants?

• Nitrate

• Magnesium

• Potassium

• Calcium

What is the main function of the xylem in plants?

• Transport of sugars

• Transport of water and minerals

• Gas exchange

• Synthesis of hormones

Which process describes the loss of water vapor from the aerial parts of a plant?

• Respiration

• Transpiration

• Photosynthesis

• Translocation

Which factor does NOT directly affect the rate of photosynthesis?

• Light intensity

• Carbon dioxide concentration

• Soil pH

• Temperature

What is the main function of the phloem in plants?

• Transport of water

• Transport of mineral ions

• Transport of sugars and amino acids

• Support

Which plant hormone is mainly responsible for cell elongation and growth?

• Gibberellin

• Auxin

• Cytokinin

• Ethylene

What is the main storage form of carbohydrates in plants?

• Glucose

• Sucrose

• Starch

• Cellulose

Which structure in a dicotyledonous leaf is responsible for most photosynthesis?

• Upper epidermis

• Palisade mesophyll

• Spongy mesophyll

• Lower epidermis