Key Points Flashcards
All flowering plants have a similar structure. What is it
I. General they are composed of roots, stems, leaves and flowers
In flowering plants explain THE SHOOT
The Shoot is the parts of the plant above the ground… Stem, leaves and flowers
What are the functions of the root In Flowering plants?
- The root anchors and supports the plant in the soil
- Roots take in eater and minerals from the soil (eg nitrogen), the
Water and minerals pass up through the stem to the leaves where they are used by the plant. - Some plants store food in their roots (turnips and carrots)
What are the functions of the stem in flowering plants.
- Stems support or hold up the leaves and flowers
- Stems transport water and minerals from the roots to the leaves AND FOOD from the leaves to the roots
- Some stems store food, eg potatoes
What are the functions of leaves in flowering plants?
- LEAVES MAKE FOOD IN A PROCESS CALLED PHOTOSYNTHESIS
- Leaves carry out gas exchange. In daylight Carbon dioxide passes in and oxygen passes out
- They allow water vapour to pass out of the plant
- Some leaves store food…lettuce and cabbage
Explain buds
Buds develop into new leaves
What are the functions of flowers in flowering plants?
They produce seeds for reproduction
Flowering plants are the most ADVANCED type of plant, give examples
Trees such as oak, ash and chestnut
Grasses
Cereals such as wheat, oats and barley
Flowers such as daffodils, tulips and daisies
How does water flow through plants
Through tiny tubes or veins called XYLEM
How does water evaporated from leaves?
Through tiny openings called stomata
What is TRANSPIRATION
The loss of water vapour from a plant
When water is absorbed by roots it contains minerals also. Name the minerals?
Nitrogen, Phosphorous, Potassium
Why do plants need minerals
To help them grow
A lack of minerals in plants causes ….
Loss of green colour and abnormal growth
If plants aren’t getting enough minerals naturally, what do we do?
Give them fertilizer
Food is made in the leaves by ehat process?
Photosynthesis
Food is transported around the plant by a different type of tube to water, what is this tissue called
PHLOEM
Explain Phloem
A tissue that transports food in the form of sugar in plants
Explain XYLEM
Tissue that carries water and dissolved minerals around a plant
Often forms hard tissue in plants eg wood in trees
Where does transpiration occur in plants
Through openings called stomata on underside of leaves
How do minerals enter a plant
Minerals enter and pass around a plant dissolved in water
food in a plant is transported from ????? To other areas by a system of tubes called ??????
From Leaves to growing areas through Phloem
