WorksheetsPhotosynthesis Last Chance Review
Total questions: 39
Worksheet time: 31mins
What describes the conversion of ADP to ATP?
an input of energy to attach a third phosphate group
an input of energy as both phosphate groups detach
release of energy as one phosphate group detaches
a release of energy as a third phosphate group is attached
Stuart is listing the changes to matter and energy that occur during the process of photosynthesis. Which of these examples should he include in his list?
changes that convert light energy into chemical energy stored in carbohydrates
changes that convert chemical energy into heat and light
nuclear changes that convert hydrogen and oxygen into carbon
chemical changes that convert carbohydrates into smaller molecules.
Nancy is explaining why chlorophyll is classified as a plant pigment and how it is useful in photosynthesis. Which property of chlorophyll would be most appropriate for her to cite?
chlorophyll’s reactivity with oxygen
chlorophyll’s ability to absorb light
chlorophyll’s green color
chlorophyll’s presence in chloroplasts
Yasmine is asked to describe the structural organization of chloroplasts. She writes the following sentence: “A chloroplast contains thylakoid stacks, called stroma, that are surrounded by fluid-filled grana.” Which change to the sentence is necessary to make the sentence accurate?
Exchange the positions of “stroma” and “grana.”
Exchange the positions of “thylakoid” and “stroma.”
Replace “grana” with “chlorophyll.”
Replace “stroma” with “chlorophyll.”
What best describes the role of light in the overall process of photosynthesis?
Light provides the energy for breaking apart sugars into small molecules.
Light accepts the energy that is released by small molecules.
Light accepts the energy that is released by sugars.
Light provides the energy for assembling small molecules into sugars.
If the scientist’s predictions are shown to be accurate, then which conclusion about photosynthesis do they support? (HINT: Apply scientific principles such as the Law of Conservation of Mass.)
All of the matter in carbon dioxide is converted into sugars.
Some but not all of the matter in carbon dioxide is converted into sugars.
All of the matter in water is converted into oxygen gas.
All of the matter in carbon dioxide is converted into oxygen gas
The table that the scientist constructed does not include light. Describe the role of light in the scientist’s experiment. Then propose an explanation for why light was not included in the table.
Light provides the matter for the chemical reactions that take place during photosynthesis, and the table includes only energy, not matter.
Light provides the energy for the chemical reactions that take place during photosynthesis, and the table includes only matter, not energy.
Light plays no role in the scientist’s experiment and therefore was not included in the table.
Light is a product of the chemical reactions that take place during photosynthesis, and the table includes only reactants, not products.
Under normal conditions, gases diffuse through small holes in the leaves of a plant. When the weather is very hot and dry, plants may close these openings to conserve water. How are the closures most likely to affect photosynthesis?
They increase the rate of photosynthesis by increasing the amount of water in the leaf.
They decrease the rate of photosynthesis by preventing carbon dioxide from entering the leaf.
They increase the rate of photosynthesis by increasing the amount of oxygen in the leaf
They have little or no effect on photosynthesis because gases do not take part in the process.
Researchers have been developing an artificial leaf, a device that mimics the actions of photosynthesis. The artificial leaf harnesses the energy of sunlight and uses it to provide energy for a series of chemical reactions. Potential products include hydrogen gas (H2) and methane gas (CH4). What is one way that the chemical processes of the artificial leaf are similar to photosynthesis?
Carbon dioxide is released as a waste product.
The products contain high-energy chemical bonds.
The products are molecules made of 5 atoms at the most.
The products contain carbon, but not oxygen.
Heterotroph
Organism that CAN'T make thier own food
Organism that makes their own food SOME of the time
Organism that CAN make their own food
Organism that doesn't even eat food
Photosynthesis
Plants use water and the dirt to make food and grow
Process where heterotrophs convert light energy into food (sugars)
Taking a picture with a camera
Process where autotrophs convert
light energy into food (sugars)
ADP
Energy molecule with 1 phosphates
Energy molecule with 2 phosphates
Broken spaghetti, arms are heavy
Energy molecule with 3 phosphates
Reflect
To reject or refute something
To take in or soak
To throw back without absorbing
To ponder or wonder about something
Autotroph
Organism that doesn't worry about its next meal
Organism that automatically eats
Organism that makes its own food
Organism that doesn't make its own food
Stomata
Opening that is used to capture sunlight
Opening that the plant uses to hear noises
Opening that lets sugar and water in and out of plants
Opening that lets gases in and out of plants
Products
Water, CO2, and light in photosynthesis
Substance byproduct of combustion reaction
Substance needed for chemical reaction
Substance made in a chemical reaction
Absorb
To take in or soak up
To throw back at
To not make a decision
Organism that makes its own food
Reactants
How I respond to when my friends spill the tea
Substance or materials that take
part or are used in a chemical reaction
Substance or material that is created from a chemical reaction
Substance that is necessary for ants to perform their day to day activities
ATP
Molecule with chemical bonds and fats
Energy molecule with 2 phosphates
Broken spaghetti, arms are heavy
Energy molecule with 3 phosphates
Pigment
Lots of types of pigs
A mint in the shape of a pig
Light absorbing molecules
Green stuff
Thylakoids
Single flattened compartment where photosynthesis takes place
Many flattened compartments where photosynthesis takes place
Pancakes
Fluid that takes up space around structures in chloroplast
Light-Dependent Reaction
Chemical reaction that makes your hair bleach
Chemical reaction that requires light to happen
Chemical reaction that happens in the dark
Chemical reaction that causes your skin to tan
Stroma
Single flattened compartment where photosynthesis takes place
Many flattened compartments where photosynthesis takes place
Pancakes
Fluid that takes up space around structures in chloroplast
Glucose
Used to adhere two substances togeter
Glue
Simplest form of sugar
Organism that makes its own food
A bussin' breakfast food
Single flattened compartment where photosynthesis takes place
Many flattened compartments where photosynthesis takes place
Pancakes
Fluid that takes up space around structures in chloroplast
Chlorophyll
Main pigment of green plants
To shine or bounce back image
Colorful absorbtion
Chemical put into pools
Light-Independent Reaction
Chemical reaction that makes your hair bleach
Chemical reaction that requires light to happen
Chemical reaction that happens in the dark
Chemical reaction that causes your skin to tan
Chemical Bond
A connection between Simba, Timone, and Pumba
What is made after molecules react with each other
A connection between two molecules
A british spy
Grana
Single flattened compartment where photosynthesis takes place
Many flattened compartments where photosynthesis takes place
Pancakes
Fluid that takes up space around structures in chloroplast
Label the following diagram correctly.
Glucose
Water
Stroma
Oxygen
Carbon Dioxide
Thylakoids
Chloroplast
CO2 + H2O --> O2 + C6H12O6
CO2 + C6H12O6 + H2O --> O2
O2 + H2O --> CO2 + C6H12O6
C6H12O6 + O2 ---> H2O + CO2
