Plants Quiz

The image below shows a model of a plant cell. All cells need energy to live. How do the organelles in the plant cell above work together to get and use this energy?

• Mitochondria take in food from the environment, and the nucleus breaks down this food to release its energy to the cell.

• The vacuole takes in energy from the environment, and chloroplasts change this energy into a form the cell can use.

• Chloroplasts make food using energy from the Sun, and mitochondria break down this food to release energy for the cell.

• The nucleus makes energy from materials in the cell, and the vacuole stores this energy until the cell needs to use it.

The reactions of photosynthesis occur in the ___ of plant cells.

• mitochondria

• chloroplasts

• lysosomes

• chlorophyll

A scientist did an experiment using a chemical inhibitor that stops photosynthesis for a certain type of plant. He grew two plants, giving the chemical to one plant and not to the other. Both plants were given equal amounts of water and sunlight. He then measured the growth of both plants as shown in the table below.

Why did the plant that could not photosynthesize stop growing?

• It did not have enough other plants to consume for food.

• It did not have enough water to grow.

• It did not have enough light to grow.

• It did not have enough food for building materials.

Photosynthesis reactions mainly occur in the ___ of plants.

• flowers

• roots

• stems

• leaves

During the process of photosynthesis, plants use energy from the Sun to transform carbon dioxide from the air into

• protein and minerals.

• minerals and liquid carbon dioxide.

• oxygen gas and molecules of sugar.

• soil and molecules of sugar.

The diagram below shows a natural process. What kind of energy conversion is shown in the diagram?

• Radiant energy is used to produce chemical energy in plants.

• Thermal energy is used to produce chemical energy in plants.

• Thermal energy is used to produce mechanical energy in plants.

• Radiant energy is used to produce mechanical energy in plants.

The following images show the same plant at two different times. Which of the images show the plant producing chemical energy through photosynthesis?

• both image 1 and image 2

• neither image 1 nor image 2

• image 2 only

• image 1 only

A plant produces its own food through the process of photosynthesis. Which of the following materials do plants need in order to perform photosynthesis?

• Nitrogen and salt

• Lipids and oxygen

• Phosphorus and oxygen

• Water and carbon dioxide

The diagram below shows a plant cell. What is the function of structure 2?

• It captures energy from the Sun and makes food through photosynthesis.

• It serves as the control center of the cell and contains the cell's genetic information.

• It stores water and helps remove wastes.

• It provides structural support to the cell.

A person gets energy from an apple by eating it. How does energy get into the apple in the first place?

• The apple absorbs energy from the soil while it is on the tree.

• The apple absorbs energy from the Sun when it is in sunlight.

• The apple tree stores energy from the soil in the apple as sugar.

• The apple tree stores energy from the Sun in the apple as sugar.