What is the function of the xylem walls being thick and lignified?
To absorb light
To conduct food
To give strength and prevent collapse
To store starch
Where does sugar transport begin?
Roots
Root hairs
Vascular bundles
Leaves
What type of energy is needed for photosynthesis to occur?
Mechanical energy
Chemical energy
Light energy
Electrical energy
What is the function of stomata?
Store food
Allow gas exchange
Transport water
Absorb sunlight
What are the examples of autotrophs?
Plants
None of the above
Pandas
Gorillas
Which of the following is required for photosynthesis?
Nitrogen
Oxygen
Sunlight
Carbon dioxide
Where can you find xylem and phloem in a plant?
Leaf, stem, and root
Stem and root
Leaf and root
Leaf and stem
What happens to the oxygen produced during photosynthesis?
It is turned into carbon dioxide
It is stored in the roots
It is released into the air
It becomes glucose
Which part of a leaf prevents too much evaporation
Xylem
Phloem
Waxy cuticle
Stomata
Which gas is released during photosynthesis
Water vapor
Nitrogen
Oxygen
Carbon dioxide
Which statement about phloem is correct?
It carries food both up and down the plant
It carries only water
It is found only in roots
It consists of dead cells
What type of plant cell increases surface area for water absorption
Root hair cell
Companion cell
Parenchyma
Guard cell
The green pigment that traps light energy for photosynthesis is called _______
Chlorophyll
Xylem
Glucose
Enzyme
Which part of the plant absorbs water and mineral salts?
Leaf
Stem
Flower
Root
The diagram shows a palisade cell. In which region glucose is produced?
B
C
A
D
What happens to the rate of photosynthesis when light intensity increases (up to a certain point)
It decreases
It stays the same
It increases
It stops
In which organelle does photosynthesis take place?
Nucleus
Cytoplasm
Vacuole
Chloroplast
Which of these is not needed for photosynthesis?
Light
Water
Carbon dioxide
Oxygen
The movement of water in and out the cell is called ... .
diffusion
transpiration
active transport
osmosis
An increase in temperature will ________________ transpiration
stop
not affect
increase
decrease
The xylem transports _______.
Oxygen
Food
Enzymes
Water and mineral salts
Why are plants called “autotrophs”
They store minerals
They eat other organisms
They depend on fungi
They make their own food
Why is chlorophyll important in photosynthesis?
It transports water
It stores food
It reflects light
It absorbs sunlight
Which of the following shows the correct energy conversion during photosynthesis?
Chemical → Light energy
Light → Heat energy
Light → Chemical energy
Heat → Chemical energy
The process by which water vapor leaves the plant is called _______.
Respiration
Translocation
Transpiration
Diffusion