Plant Nutrition Basics

What is the process by which plants make their food using sunlight, carbon dioxide, and water?

• Photosynthesis

• Hydroponics

• Chlorophyll

• Sunbathing

Where does nutrient absorption primarily occur in plants?

• Stem cells

• Leaf veins

• Flower petals

• Root hairs

What is the main pigment responsible for capturing light energy during photosynthesis?

• Xanthophyll

• Carotenoid

• Melanin

• Chlorophyll

Name one mineral nutrient essential for plant growth and development.

• Potassium

• Nitrogen

• Phosphorus

• Calcium

How does the availability of water in the soil affect plant nutrition?

• Excess water in the soil leads to nutrient deficiency in plants

• Water in the soil dissolves essential nutrients, making them available for plant uptake through their roots.

• Water in the soil inhibits nutrient absorption by plants

• Plants can survive without water in the soil

Explain the role of chlorophyll in the photosynthesis process.

• Chlorophyll converts carbon dioxide into glucose directly.

• Chlorophyll releases oxygen during photosynthesis.

• Chlorophyll is not involved in the photosynthesis process.

• Chlorophyll absorbs light energy to drive the photosynthesis process.

Which gas is taken in by plants during photosynthesis?

• Nitrogen (N2)

• Oxygen (O2)

• Hydrogen (H2)

• Carbon dioxide (CO2)

What is the function of the root hairs in nutrient absorption?

• Root hairs store excess nutrients

• Root hairs provide structural support to the plant

• Root hairs regulate water absorption

• Increase surface area for nutrient absorption

Why is nitrogen important for plant growth?

• Nitrogen is important for plant growth because it inhibits root development.

• Nitrogen is important for plant growth because it is a key component of chlorophyll, which is essential for photosynthesis.

• Nitrogen is important for plant growth because it attracts pests to the plants.

• Nitrogen is important for plant growth because it causes wilting of leaves.

How do plants obtain carbon dioxide for photosynthesis?

• Through stomata on their leaves

• From the soil

• By absorbing it through their stems

• Through their roots