Ch 2. Exploring the Plant World Flashcards
What provides food for all living things?
plants
Name two ways we depend upon plants to live.
Plants grow fruit and vegetables, and plants feed animals that humans use for food.
What kind of plants form seeds?
Plants that have flowers form seeds.
What are the three main parts of a seed?
seed coat
the young plant
food for the young plant
What is the seed coat?
The seed coat protects the young plant inside the seed until it is ready to sprout.
What does a seed need before it can sprout?
moisture
What four things are needed for seeds to grow?
water
soil
air
correct temperature
What happens to the seed coat when the seed begins to sprout?
The seed coat pops open.
What happens to the seed coat after it has popped open?
It dies because it isn’t needed anymore.
What is the flower’s job?
The flower’s job is to make seeds.
What do we call the yellow dust formed in flowers?
pollen
What process moves pollen from flower to flower?
pollination
What is the stem’s job?
carry water and food
hold the plant up
What is the leaf’s job?
The leaf’s job is to make food for the plant.
What is the green material in plants called?
chlorophyll
What is the food-making process in green plants called?
photosynthesis
What simple sugar is made in the process of photosynthesis?
glucose
What four things are needed to complete the process of photosynthesis?
sunlight
carbon dioxide
water
chlorophyll
What do leaves give off?
Leaves give off oxygen and water.
What is carbon dioxide?
It is a gas.
What is oxygen?
Oxygen is a gas plants give off, which people and animals need to breathe.
What job do roots do?
They take minerals and water from the soil and send them through the stem to other parts of the plant. They also hold the plant in the ground and keep the soil in place.
Which part of the root grows?
The tip
What are tiny root hairs called?
The root’s “mouth”
