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Download 2. Why is photosynthesis important to plants?
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Access Prior Knowledge Read 1. What happens during pollination? Inquire Explain Read 2. Why is photosynthesis important to plants? 3. Describe what happens to particles when thermal energy (temperature) is increased and decreased. Inquire Explain Review previous outlines and write a question to ask a classmate. Brain Pop DNA and Growth Different plants have different needs, but a plant’s DNA controls when and how it grows. DNA and the environment both affect how fast a plant grows. Tropisms Tropisms are ways that plants change the direction they grow due to the environment. Growth hormone is a chemical that affects plant growth by making cells grow larger. Water can also change the size of plants when they store it in the vacuoles. Types of Tropisms Gravitropism is a plant’s growth due to gravity, roots growing down but stems grow against gravity. Phototropism is how a plant reacts to light, plants bending toward light. Thigmotropism is a plant’s growth due to touching an object, vines stems grow around a post or fence. Different Tropisms Thigmotropism Phototropism Gravitropism TextQuest 1. What are the influences that determine rate of plant growth in different types of plants ? Read 2. Explain how plants and plant parts grow toward light or grow upward? Inquire Explain 3. If the Sun shines on a plant mainly from the south, in what direction will the plant grow? Why?
