Plant Systems

What is the correct chemical equation for photosynthesis?

• CO₂ + light + H₂O → O₂ + Sugar

• O₂ + H₂O → CO₂ + Sugar

• H₂O + Sugar → CO₂ + O₂

• CO₂ + H₂O → O₂ + light

What is the primary function of the leaves in a plant?

• Leaves are the main site of photosynthesis and gas exchange.

• Leaves primarily store water for the plant.

• Leaves are responsible for root growth and stability.

• Leaves help in the reproduction of the plant.

In the process of seed germination, which part of the seedling typically grows upwards against gravity?

• The root

• The leaf

• The shoot (or stem)

• The seed coat

What is the term for the part of the plant that develops from a fertilized ovule?

• Fruit

• Seed

• Leaf

• Root

What is the term for the process by which plants lose water vapor through small openings in their leaves?

• Transpiration

• Photosynthesis

• Respiration

• Evaporation

What is the function of the roots in a plant?

• Roots anchor the plant and absorb water and nutrients from the soil.

• Roots are primarily responsible for photosynthesis.

• Roots store energy for the plant during winter.

• Roots help in the reproduction of the plant.

What environmental factors influence seed germination?

• Moisture, temperature, and gravity.

• Light, humidity, and altitude.

• Soil type, wind speed, and pH level.

• Nutrients, carbon dioxide, and salinity.

What is the significance of the chloroplast in plant cells?

• Chloroplasts are the organelles where photosynthesis occurs.

• Chloroplasts are responsible for cellular respiration.

• Chloroplasts store genetic information.

• Chloroplasts help in the absorption of water.

What role does chlorophyll play in photosynthesis?

• Chlorophyll reflects light energy, which is used to convert carbon dioxide and water into glucose and oxygen.

• Chlorophyll absorbs light energy, which is used to convert carbon dioxide and water into glucose and oxygen.

• Chlorophyll releases heat energy, which is used to convert carbon dioxide and water into glucose and oxygen.

• Chlorophyll absorbs sound energy, which is used to convert carbon dioxide and water into glucose and oxygen.

Where in the plant does photosynthesis primarily take place?

• Mitochondria

• Chloroplasts

• Nucleus

• Cell Membrane