Page 116 - Science Course 1 (Book 1)

Mo4-L2b: What Changes Help a Plant Survive and Grow?

SUMMARY Stimulus
What Makes a Plant Survive and Grow? a change in an organisms’ environment that causes a
Plants make sugar through the process of response.
photosynthesis. Plants break down sugar into
usable energy through the process of cellular
respiration.

8 hours 16 Hours Plant
Sunlight Dark Flower

8 hours 8 hours very 8 Hours Plant
Sunlight low light Dark remain
intensity vegetative

a flash of light

8 hours 16 Hours Plant
Sunlight Dark remain
vegetative

Mo4-L2b What Changes Help a Plant Tropism
Survive and Grow?
plant growth toward or away from an external
stimulus
KEY CONCEPTS:
1. How do water and nutrients move in a nonvascular
plant? In a vascular plant?
2. How do plants respond to environmental changes?

Vocabulary A-Z

Let us learn some vocabulary

Transpiration
the process by which plants release water vapor Let’s Begin
through their leaves.

Movement of Nutrients and Water

In order to carry on photosynthesis and cellular
respiration, water and nutrients must move inside
plants.
Diffusion
This movement or
transport of materials
occurs through diffusion
and osmosis in
nonvascular plants.

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