Roots
Give example of tap root and fibrous root
Carrot: Tap
Grass: Fibrous
what does sapwood do?
absorb water
stomata are found on __________ side of the leaf
lower
which plant cell structures are responsible to carry out photosynthesis?
chloroplasts
Give two functions of roots
1. Anchor
2. Absorb
3. Store food
Describe heartwood.
The old inactive xylem in the center of the woody stem supports the tree.
what is transpiration?
loss of water from leaf
What are annual rings made of?
Xylem cells
What are the two functions of root hair?
to anchor the plant
to absorb minerals and water from soil
Name three functions of stem
Support the plant stand tall
Transport water and food
Expose the leaves
If you forget to water a plant for few days, what will happen to its stomata?
they will close to save water
Why are Upper leaf cells are tightly packed ?
to trap maximum sunlight
Which type of roots is likely to be more useful in preventing soil erosion? Why?
Fibrous, as they anchor the plant firmly in soil
What is the function of Cambium?
to form new xylem and phloem cells
what comes in from stomata and what goes out?
In: Carbon dioxide
Out: Water, Oxygen
What are the two types of stems? How do you distinguish between the two types?
Woody: brown tough
Herbaceous: green soft
Which structure protects the dividing cells of root?
root cap
What do annual rings tell us about? Mention two things.
Age of plant
weather conditions of past: rainfall
How does the structure of leaf helps the plant save water? Mention two ways.
cuticle
stomata closed
Give two reasons which makes the structure of leaf ideal for carrying out photosynthesis.
1. upper leaf cells tightly packed
2. lower loosely packed
3. stomata