Transcript Document 111834

Plant Basic Needs
Core Content
 Biological Science SC-04-3.4.1
 Students will:
 compare the different structures and
functions of plants and animals that
contribute to the growth, survival and
reproduction of the organisms;
 make inferences about the relationship
between structure and function in
organisms.
Vocabulary
 Carbon dioxide – a gas breathed out by
animals. Plants breath in Carbon
dioxide.
 Nutrient – substances, such as minerals,
that all living things need to grow.
 Photosynthesis – the process by which
plants make their own food which takes
place in the leaves of the plant.
Plant Basic Needs
 Plants need four things to survive.




air (Carbon Dioxide)
Nutrients
Water
light
Air
 Air contains the carbon dioxide plants
need.
 Carbon dioxide is a gas breathed out by
animals.
 Plants take in carbon dioxide through
their leaves.
Nutrients
 Nutrients are substances, such as
minerals, that all living things need in
order to survive.
 Plants get nutrients from soil.
Water
 A plant gets water from rain.
 Some of the water is taken in through
pores in the plant’s leaves, but most of it
is taken in by the plant’s roots.
Light
 Though some plants tolerate shade, no
plant can live in total darkness.
 Plants use light to make their own food
through a process known as
photosynthesis.
Photosynthesis
 Photosynthesis takes place in a plant’s leaves.
 Light is trapped by chlorophyll, the material that
makes a leaf green.
 The energy from the light starts the foodmaking process.
 Without light, plants could not make the food
they need to live and grow.
 Carbon dioxide and water are the two main
materials that the plant uses to make food.
 The food the plant makes is sugar.
Photosynthesis,
continued.
 During photosynthesis, the leaves take in
carbon dioxide, and the roots take in water.
 The water travels through tubes in the stem tot
the leaves.
 The leaves then use the energy from light to
make sugar from the carbon dioxide and water.
 Oxygen is a waste product of photosynthesis.
The leaves give off oxygen.
Review
 What are the basic needs of plants?
 What happens during photosynthesis and
how does it help the plant survive?