Module 2 Lesson 3: Important Plant Processes

Which action would increase the amount of oxygen in a fish tank?

• Adding more fish
• Adding more plants
• Placing food in the tank
• Placing a water heater in the tank.

Drought and fire are common during the hot summers in a grassland. Which adaptation would most likely give a grassland plant an advantage for survival during a hot summer?

• stems that burn easily and grow slowly
• large leaves that let water evaporate quickly
• roots that store energy and help it grow back quickly
• long stems that help it reach the sunlight above other plants.

Which statement BEST explains why few plants grow on a tropical rainforest floor?

• Heavy rains fall throughout the year.
• Temperature in a tropical rain forest stays warm
•  Many different kinds of animals live on the rain forest floor.
• Layers of trees keep sunlight from reaching the forest floor.

Which part of the tree does photosynthesis MOST likely take place?

• Bark
• Roots
• Trunk
• Leaves

A seed of a plant sticks to the fur of an animal as it walks by. How has the animal MOST likely helped the plant?

• By spreading the seed
• By sprouting the plant
• By spreading the pollen
• By fertilizing the seed

Release of water by plants

• Respiration
• Transpiration
• Photosynthesis
• Stomata

Turning sunlight, water, and carbon dioxide into sugar.

• Transpiration
• Guard Cell
• Respiration
• Photosynthesis

Turning sugar into energy 

• Respiration
• Photosynthesis
• Transpiration
• Guard Cell

Openings at the bottoms of leaves

• guard cells
• photosynthesis
• stomata
• respiration

Cells that regulate when the stomata open and close.

• Respiration
• Stomata
• Transpiration
• Guard Cells