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WorksheetsPhotosynthesis
Total questions: 33
Worksheet time: 18mins
What are the reactants of photosynthesis? The reactants are the things needed for photosynthesis to occur.
oxygen and glucose in the presence of sunlight
sunlight and oxygen in the presence of water
water and oxygen in the presence of carbon dioxide
carbon dioxide and water in the presence of sunlight
What pigment captures/absorbs sunlight?
stomata
chlorophyll
chloroplast
phloem
What are the tiny openings that let in the carbon dioxide needed for photosynthesis?
stomata
xylem
phloem
chloroplast
How does water travel from the roots to the plan leaf? Name the structure that carries water.
stomata
phloem
chloroplast
xylem
What are the 2 products of photosynthesis? The products are the things made in the process of photosynthesis.
water, sunlight
glucose, carbon dioxide
oxygen, glucose
sunlight, oxygen
What is the main purpose of photosynthesis?
To make food
To create energy
To release oxygen
To absorb sunlight
Which product is "waste" and mostly released by the producer (plant)?
oxygen
carbon dioxide
sugar
glucose
How does oxygen get released by the producer (plant)? Name the structure in the leaf.
stomata
xylem
phloem
chloroplast
Which of the following are TRUE statements? (Select ALL that apply)
Photosynthesis takes place in the chloroplasts of leaf cells
Photosynthesis means "making food using sun"
Photosynthesis can occur in the dark
All plants, plant-like protists, and some bacteria go through photosynthesis
Which organelle is responsible making food (glucose) using sunlight?
Cell Membrane
Nucleus
Chloroplast
Mitochondria
Which organelle stores water for use in photosynthesis?
Chloroplast
Cell Membrane
Vacuole
Nucleus
How does most of the water needed by the plant get into its leaves?
It enters through the stomata
The roots absorb it and then it travels up the stem in the xylem
It's made during a chemical reaction in the leaf
The flowers capture water and deliver it to the leaves
Which organisms perform photosynthesis?
Only Autotrophs
Only Heterotrophs
Autotrophs and Heterotrophs
Chlorophyll is green because
it absorbs green wavelengths of light
it absorbs blue and yellow wavelengths of light
it reflects green wavelengths of light
it is an optical illusion caused by the transmission of light
Where is the main site of photosynthesis on a plant?
Stem
Leaves
Petals
Pollen
Which part of the plant holds the main networks of xylem and phloem?
leaves
petals
stem
roots
Xylem carries-
water up from the roots
water down from the leaves
Glucose from the roots
Glucose down the stem
Phloem carries-
Glucose all around the plant
Glucose to the roots only
Water all around the plant
Water up from the roots
Plants take in radiant energy and turn it into what form of energy?
Chemical
Thermal
Potential
Kinetic
When light intensity goes up, the rate of photosynthesis goes _______.
up
down
at the same rate. It does not change.
What are the raw materials needed by photosynthesis? Pick 2.
carbon dioxide
oxygen
glucose
water
How many molecules of carbon dioxide are in the photosynthesis equation?
1 molecule
2 molecules
6 molecules
12 molecules
How many molecules of water are in the photosynthesis equation?
1 molecule
2 molecules
6 molecules
12 molecules
What side of the photosynthesis equation are the products of photosynthesis?
right side
left side
over the arrow
How many molecules of glucose are in the photosynthesis equation?
1 molecule
2 molecules
6 molecules
12 molecules
Glucose is a type of sugar. It is the "food" that is made during photosynthesis.
True
False
Light energy is not needed for the photosynthesis chemical reaction to take place.
True
False
When a plant cell breaks down the sugar that it makes, it releases the energy that it contains.
True
False
How does a plant use energy in glucose?
It is ONLY stored.
It is ONLY used right away.
It is BOTH stored and used right away.
What is C6H12O6?
carbon dioxide
oxygen
glucose
water
What is the process (equation) for photosynthesis?
6CO2 + C6H12O6 --> 6H2O + 6O2
6H2O + 6CO2 --> C6H12O6 + 6O2
6CO2 + C6H12O6 --> 6H2O + Energy
6O2 + C6H12O6 --> 6CO2 + 6H2O
What is the primary source of energy for all food chains or webs?
decomposers
producers
consumers
the sun
