Plant Nutrition

Which plant part absorbs light energy to produce plant sugar?

• Stem

• Leaves

• Roots

• Flowers

What is the main function of the flower of a plant?

• Provide food for insects

• Sexual reproduction

• Store food for the plant

• Provide surface area for the plant

Which process allows plants to make their own food and convert it to energy?

• Nitrogen Cycle

• Respiration

• Phototropism

• Photosynthesis

Which of the following is NOT a function of carbohydrates?

• Transportation of solutes across cell membranes

• Composition of the cell wall

• Storing and yielding energy

• Energy metabolism in cells

Which of the following is a macronutrient?

• Iron

• Boron

• Calcium

• Magnesium

What type of nutrients are replaced most often by fertilizer?

• Non-mineral

• Required nutrients

• Macronutrients

• Micronutrients

Which of the following is NOT a term which describes the pH of soil?

• Alkaline

• Acidic

• Neutral

• Active

Which of the following is NOT true about fertilizer?

• It is required for plant growth.

• It can be applied by irrigation systems.

• It should never be applied to frozen ground.

• It replaces crop land nutrients which have been depleted.

Which of the following is a disadvantage of using hydroponics?

• Slower plant growth

• Costs are higher than soil culture

• Lower crop yields

• Weeding and cultivation are required

Which of the following has led to an estimated 70 to 90 percent increase in food production according to the World Bank?

• Hydroponics

• Sustainable Agriculture

• Fertilizer

• Increased Acerage