Font size
WorksheetsPhotosynthesis 7º SBLM
Total questions: 20
Worksheet time: 45mins
Select all that are products of Photosynthesis.
Water
Carbon Dioxide
Oxygen
Sunlight (Light Energy)
Glucose (Sugar/food)
What is the green pigment that "traps" sunlight?
Chlorophyll
Chloroplasts
Photosynthesis
Colorless
Select all that are raw materials for Photosynthesis.
Water
Carbon Dioxide
Oxygen
Sunlight (Light Energy)
Glucose (Sugar/food)
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 xylem
It's made during a chemical reaction in the stem
The flowers capture water and deliver it to the leaves
What would happen if the structure labeled with the letter "O" did not exist?
The plant could do photosynthesis.
Gas exchange would not occur.
Glucose could not leave the leaf.
Herbivores would consume it more frequently.
The thin layer on the epidermis, labeled with the letter "M", has the function of
Reduces the rate of water loss (evaporation) from the leaf surface.
Reduces the gas exchange in the leaf.
Increases the glucose production in the mesophyll.
Increases the sunlight acquisition on the mesophyll surface.
This tissue in a leaf is where most photosynthesis takes place.
N.
P.
Q.
R.
Roots do NOT
Stabilize the plant in the ground.
Absorb and transport water and nutrients.
Photosynthesize.
Store food.
In spongy mesophyll cells, why are there so many spaces between the cells?
To allow for the water molecules to be taken in by the stomata
To allow for the exchange of gasses in the leaf
To allow for the vascular bundles to fit between the mesophyll cells in the leaf
To allow for the storage of the sugars made by the mesophyll cells
Where are vascular tissues found in the figure below?
S. transporting sugars and T. transporting water and minerals.
T. transporting sugars and S. transporting water and minerals.
S. transporting sugars and minerals and T. transporting water and glucose.
R. transporting water and gases.
What generalization can be made based on the data?
All plants have more stomata on the top side of their leaves than on the bottom side.
Plants have fewer stomata on the top side of their leaves than on the bottom side.
Some plants have more stomata on the top side of their leaves than on the bottom side.
The number of stomata is the same from plant to plant.
Pumpkins, tomatoes, and beans all grow in direct sunlight. Assuming the plants receive plenty of water, stomata on the lower surface of their leaves
are always closed.
are usually clogged with dust.
are unlikely to close at night.
stay open during daylight hours.
The tissue responsible for water and minerals transport
K.
G
J
H.
The vascular tissues are represented by the labels:
H. and J.
J. and K.
F. and G.
K. and G.
Why is it important that the root endodermis (dark orange), permits only a one-way passage of materials?
to make sure water and nutrients enter to the root.
to make sure water and nutrients do not leak back out.
Intracellular and extracellular.
to support a plant, store food, and absorb water and dissolved nutrients from the soil.
3H2O + 6CO2 === Light===> C6H12O6 + 5O2
To balance the photosynthesis equation above, you need to add:
3 water molecules and 1 oxygen atom.
6 water molecules and 6 oxygen molecules.
3 water molecules and 1 oxygen molecule.
2 carbon dioxide molecule and 1 water molecule
Here are some steps in the P.S. process:
1. Carbon dioxide from the air passes through small pores in the leaves.
2. Water is absorbed by the roots and passes through vessels in the stem on its way to the leaves.
3. Light is absorbed by a green chemical in the leaves.
The words highlighted in red correspond to
1. Lower epidermis / 2. Stoma / 3. Glucose
1. Stoma / 2. Xylem / 3. Chlorophyll
1. CO2 / 2. H2O / 3. NaCl
1. Leaves / 2. Roots / 3. Light
Hydrogen and carbon dioxide are used to form glucose or food for plants. Some of the glucose is used to provide energy for the growth and development of plants while the rest is stored in leaves, roots or fruits for later use by plants. What would happen if the plant can´t get CO2 ?
Plants and herbivore animals could not get energy.
Plants would have to eat animals
Carbon dioxide in the atmosphere would end
Carnivore animals could not get energy.
Photosynthesis is also responsible for balancing oxygen and carbon dioxide levels in the atmosphere. Plants absorb carbon dioxide from the air and release oxygen during the process of photosynthesis.
What could be a way to improve air quality in cities?
Cutting down trees.
Spreading seeds through the city.
Planting more trees.
Extracting glucose from fruits and stems
