PLANTS 5TH

PLANT GROWTH AND NUTRITION

5th GRADESCIENCE

ENGLISH CATALÀ ENGLISH CATALÀCarbon dioxide Dry

Chlorophyll FertileElaborated sap Shady

Mineral salts ProducePhloem vessels ReleasePhotosynthesis Survive

Raw sap Take inRespiration Lack of

Stomata HumidSunlight Extreme

Xylem vessels Nutrients

NEW

VO

CABU

LARY

PART

S OF

PL

ANTS

ROOTS

They hold the plant in the ground.They absorb water and minerals from the ground.There are two types of roots:

TAPROOTS FIBROUS ROOTS

ROOTS

STEMIt supports the plant (the leaves, the flowers and the fruit).It distributes the water, and minerals and the food through the plant.

There are two types of stems: WOODY STEMS

HERBACEOUS STEMS

WOODY STEM It’s hard and rigid.

They are called TRUNKS.

It’s soft and flexible

LEAVES

LEAVESThey grow from the stem. They contain the chlorophyll.

THEY HAVE 2 PARTS:

PETIOLE : It joins the blade to the stem.

BLADE : It’s the flat part of the leaf. It has VEINS. They support the leaf and carry water and minerals. It has STOMA (small pores)

THE

NEED

S OF

A

PLAN

T

PLANTS NUTRITION

Plants are PRODUCERS

PHOTOSYNTHESIS

PHOTOSYNTHESIS

Plants make their own food, through

a process called PHOTOSYNTHESIS.

WATER + MINERALS + CARBON DIOXIDE + SUNLIGHT + CHLOROPHYLL = GLUCOSE AND OXYGEN

1. The roots absorb water and minerals from the soil. This is called the raw sap. The xylem vessels transport it from the roots to the leaves.

WATER + MINERALS = XYLEM SAP

2. Leaves absorb carbon dioxide through the stomata.

carbon dioxide

3. The chlorophyll traps Sunlight.This energy from the Sun, transforms the raw sap

and carbon dioxide into glucose.The plant expels excess oxygen through stomata.

RAW SAP + CARBON DIOXIDE = GLUCOSE

4. This glucose is transported in the elaborated sap to the rest of the plant through the phloem vessels.

PHLOEM SAP = GLUCOSE + OXYGEN

At night, when photosynthesis stops, plants no longer expel

oxygen. During this time they just release

carbon dioxide.

TEACHER LETICIA