Chapter 2 - Exploring The Plant World Flashcards
What protects the young plant inside the seed from drying out or from being easily crushed.
Seed coat
What 4 things do seeds need to grow?
Water, soil, air, the right temperature
Upon what do all living things depend?
plants
What are the three main parts of seeds?
seed coat, young plant, stored food
What is the seed coat?
the hard outer covering of a seed
What happens to the seed coat when the seed begins to sprout?
it dies
Name two ways that you depend on plants to live.
give us food, help us breathe air
All flowering plants have these
seeds
the act of moving pollen from one part of a flower to another, or from one flower to another, so that the flower can make seeds.
pollination
the yellow powder or dust formed by a flower
pollen
What is a leaf’s job?
to make for the plant
What is the green material in plants called?
chlorophyll
What gas does plants take from the air?
carbon dioxide
What simplesugar is formed in plants?
glucose
What is the process that allows a plant to make it’s own food called?
photosynthesis
What four things are needed to complete the process of photosynthesis?
sunlight, carbon dioxide, water, chlorophyll
What is the flower’s job?
make seeds
What is the stem’s job?
carry food
What is the root’s job?
take minerals and water from the soil
Where does carbon dioxide come from?
animals and people give off carbon dioxide when they breathe
What is chlorophyll?
the green material in plants
What are the root’s “mouth”?
tiny root hairs
What other jobs do the roots do?
Hold the soil in place
What is a single cell produced in some plants which can grow into a new plant?
spore
What is a spore?
a single cell produced in some plants which can grow into a new plant
Where are spores found?
Inside spore cases
Does a spore contain food like a seed?
no
What is necessary before a spore can grow into a new plant?
moist shady place where it can get food and air
How is mold harmful?
It grows on food you eat and spoils it
How is mold helpful?
yeast spores make bread rise
pencillin, a medicine that has saved the lives of many people, is made from a special green mold
mushrooms rot dead trees and animals and return their minerals to the soil to help plants grow
Name some plants which grow from spores
mushrooms, ferns, mosses
