Flashcards › Chapter 3: Plants and Plant Growth

What are 5 things a plant needs to survive? nutrients, water, sunlight, carbon dioxide, oxygen What three things are needed for photosynthesis? carbon dioxide, water, sunlight True or false: Plants live almost everywhere. True, because they adapt to their environment. Name step 1 of photosynthesis. Water is absorbed from soil by the roots. Name step 2 of photosynthesis. Carbon dioxide enters the plant through its pores. Name step 3 of photosynthesis. The sun's energy is captured and used by chlorophyll. Name step 4 of photosynthesis. Carbon dioxide changes to oxygen and water changes to sugar. Name step 5 of photosynthesis. Oxygen is released in the air and sugar is stored as food. What is the job of xylem? To carry water and nutrients in the plant. What is the job of phloem? To carry sugar in the plant. What is transpiration? The process of moving water and nutrients through xylem. What is a vascular plant? A plant that transports water, sugar, and nutrients. True or false: Vascular plants can be very large. True, because nutrients are better dispersed. Name one way nonvascular plants are different from vascular. 1. They are smaller. 2. They live close together. 3. They live in moist areas. How do water and nutrients move through xylem?? Through a sucking motion. How does sugar move through phloem? Through positive pressure. Where is a lot of sugar stored? Plant buds and root endings. Where do nonvascular plants live? In moist areas. Nonvascular plants do not have true roots, but rather... rhizoids, long cells that reach into the ground. What type of gravity is shown when the roots or a shoot grow up, AWAY from gravity? Negative gravitropism. How do plants respond to their environment? Tropism True or false: Roots have have a positive response to touch. False. They grow away from things that touch them. What is it called when plants move in the direction of the sun? Phototropism Discussing Chapter 3