Ch 4 Plants Flashcards
the process in which plants use light, carbon dioxide, and water to make sugar and oxygen
photosynthesis
the movement of pollen from the plant stamen to the pistil
pollination
plant tissue made up of tubes that carry water and minerals from the roots up to the leaves.
xylem
plant tissue made up of tubes that carry sugar away from the leaves down through the plant
phloem
the way plants change growth direction in response to the environment
tropism
a new plant seed
embryo
a single plant cell that can grow into a new plant
spore
a kind of chemical that causes cells to grow
growth hormone
a grainy yellow powder made in tissue at the top of a flower’s stamen
pollen
reproduction occurs in the
flower
what transports water and nutrients and holds the plant upright for sunlight
stem
what part of the plant produces food (sugar)
leaves
what part of the plant sucks up water from the ground and anchors the plant to the soil
roots
describe the process of photosynthesis
plants take in carbon dioxide, water, and sunlight energy to produce sugar (food) and oxygen.
explain why plants have more sugar in them during daytime than at nighttime
the suns energy is needed for the plant to make food. during the day the plant receives more sunlight.