WorksheetsAutotrophs, Heterotrophs, and Photosynthesis Review Quizizz
Total questions: 100
Worksheet time: 50mins
Which of the following best describes the difference between autotrophs and heterotrophs?
Autotrophs make their own food, while heterotrophs obtain food from other organisms.
Autotrophs only eat plants, while heterotrophs only eat animals.
Autotrophs breathe oxygen, while heterotrophs breathe carbon dioxide.
Autotrophs live in water, while heterotrophs live on land.
Which of the following organisms is an example of an autotroph?
Grass
Lion
Mushroom
Human
What is the main difference between photosynthesis and cellular respiration?
Photosynthesis stores energy, while cellular respiration releases energy.
Photosynthesis occurs in animals, while cellular respiration occurs in plants.
Photosynthesis uses oxygen, while cellular respiration produces oxygen.
Photosynthesis breaks down food, while cellular respiration builds food.
What is the primary function of the ATP energy cycle in cells?
To provide energy for cellular processes
To store genetic information
To transport oxygen
To produce proteins
Which of the following is a difference between plants and animals?
They have the same cell types
They have different cell types
They have the same organelles in their cells
They obtain energy in the same way
How do plants and animals differ in terms of the organelles found in their cells?
They have identical organelles
Only animals have organelles
They have different organelles in their cells
Only plants have organelles
Which statement best describes how plants and animals obtain energy?
Both obtain energy in the same way
Only animals obtain energy
Only plants obtain energy
They obtain energy differently
If you were to compare a plant cell and an animal cell, which of the following would you expect to find?
The same cell structure and energy process
Different cell types, organelles, and ways of obtaining energy
No differences at all
Only differences in size
What is the definition of energy as described in the material?
The ability to do work
The process of making food
The breakdown of dead organisms
The movement of water
Which of the following best describes an autotroph?
An organism that creates its own food
An organism that eats other organisms
An organism that breaks down dead material
An organism that absorbs sunlight only
What are heterotrophs also called?
Producers
Consumers
Autotrophs
Photosynthesizers
Which statement best describes the role of decomposers in an ecosystem?
They create their own food using sunlight.
They obtain food by eating living plants.
They break down the remains of dead organisms or organic wastes into nutrients.
They absorb energy directly from the sun.
Explain why heterotrophs depend on other organisms for food, and give an example of a type of heterotroph.
Heterotrophs cannot make their own food and must eat or absorb it; an example is a consumer.
Heterotrophs make their own food using sunlight; an example is a producer.
Heterotrophs only eat plants; an example is a herbivore.
Heterotrophs only break down rocks; an example is a mineralizer.
Which of the following groups of organisms can perform photosynthesis?
Plants, algae, and some bacteria
Animals, fungi, and some bacteria
Plants, animals, and fungi
Algae, fungi, and animals
What is chemosynthesis?
The process of breaking down and using the energy in chemical compounds to make food
The process of using sunlight to make food
The process of absorbing water from the soil
The process of converting oxygen into carbon dioxide
Which process do autotrophs use to make food using sunlight?
Photosynthesis
Respiration
Fermentation
Digestion
Explain why only certain groups of organisms can perform photosynthesis and not all living things.
Only plants, algae, and some bacteria have the necessary structures and pigments to capture sunlight and convert it into energy.
All living things can perform photosynthesis if they are exposed to sunlight.
Only animals and fungi have the ability to use sunlight for energy.
Photosynthesis is a process that requires oxygen, which only some organisms can use.
Compare and contrast photosynthesis and chemosynthesis as methods autotrophs use to make food.
Photosynthesis uses sunlight for energy, while chemosynthesis uses energy from chemical compounds; both processes allow organisms to make their own food.
Both photosynthesis and chemosynthesis use sunlight to make food.
Chemosynthesis uses oxygen, while photosynthesis does not.
Photosynthesis and chemosynthesis are only found in animals.
What is the main function of Adenosine Triphosphate (ATP) in cells?
To store and release energy
To provide structural support
To transport oxygen
To synthesize proteins
Which of the following best describes ATP?
The main energy molecule of the cell
The main genetic material of the cell
The main waste product of the cell
The main pigment of the cell
How does ATP release and store energy for cellular processes?
By breaking and reforming the bonds between its phosphate groups
By absorbing sunlight directly
By dissolving in water
By combining with oxygen
Why is ATP considered exceptionally useful as a basic energy source for cells?
Because it can easily release and store energy
Because it is a protein
Because it is found only in plant cells
Because it is a type of sugar
Which process converts the energy of sunlight into chemical energy stored in the bonds of carbohydrates?
Photosynthesis
Cellular respiration
Fermentation
Digestion
What is the correct equation for photosynthesis?
6 CO₂ + 6 H₂O + Light --> C₆H₁₂O₆ + 6 O₂
C₆H₁₂O₆ + 6 O₂ --> 6 CO₂ + 6 H₂O + ATP
6 O₂ + 6 CO₂ + Light --> C₆H₁₂O₆ + 6 H₂O
C₆H₁₂O₆ + 6 CO₂ --> 6 O₂ + 6 H₂O + ATP
During cellular respiration, what happens to carbohydrates?
They are broken down in the presence of oxygen to release stored energy.
They are formed from carbon dioxide and water.
They are stored in the chloroplasts.
They are converted into sunlight.
Which of the following is the correct equation for cellular respiration?
C₆H₁₂O₆ + 6 O₂ --> 6 CO₂ + 6 H₂O + ATP
6 CO₂ + 6 H₂O + Light --> C₆H₁₂O₆ + 6 O₂
6 O₂ + 6 CO₂ --> C₆H₁₂O₆ + 6 H₂O + ATP
C₆H₁₂O₆ + 6 CO₂ --> 6 O₂ + 6 H₂O + ATP
Compare the overall purpose of photosynthesis and cellular respiration. Which statement best describes their relationship?
Photosynthesis stores energy in carbohydrates, while cellular respiration releases that energy.
Both processes store energy in carbohydrates.
Both processes release energy from carbohydrates.
Photosynthesis and cellular respiration both require sunlight.
Which organelle is responsible for photosynthesis in plant cells?
Mitochondria
Nucleus
Chloroplast
Ribosome
What are the main reactants required for photosynthesis?
Glucose and oxygen
Carbon dioxide and water
Nitrogen and glucose
Oxygen and ATP
Which process breaks down glucose to produce carbon dioxide, water, and energy (ATP)?
Photosynthesis
Fermentation
Cellular respiration
Transpiration
In the context of metabolic reactions, which of the following best describes catabolic reactions?
Building larger molecules from smaller ones
Breaking down larger molecules into smaller ones
Storing energy in chemical bonds
Absorbing sunlight for energy
Explain how photosynthesis and cellular respiration are related in terms of energy flow and chemical products.
Photosynthesis uses energy from sunlight to produce glucose and oxygen, which are then used in cellular respiration to release energy, carbon dioxide, and water.
Photosynthesis and cellular respiration are unrelated processes.
Cellular respiration produces sunlight, which is used in photosynthesis.
Both processes only occur in animal cells.
Which of the following best describes the main difference between plants and animals?
Plants can move while animals cannot.
Plants produce their own food while animals consume other organisms for food.
Animals use photosynthesis to make food.
Animals do not need energy to survive.
What are the two main ways organisms acquire food for energy?
Photosynthesis and fermentation
Eating and drinking
Autotrophy and heterotrophy
Respiration and digestion
Which term describes an organism that obtains energy by consuming other organisms?
Autotroph
Heterotroph
Producer
Chemosynthesizer
What is the main energy molecule used by cells?
DNA
Glucose
ATP
Oxygen
Which process describes the conversion of ADP and P into ATP?
Photosynthesis
Cellular Respiration
ATP Cycle
Fermentation
What is the relationship between photosynthesis and cellular respiration?
They are identical processes.
They are unrelated.
They are opposites of each other.
Both only occur in animals.
Which of the following best defines a catabolic reaction?
A reaction that builds larger molecules from smaller ones.
A reaction that breaks down larger molecules into smaller ones.
A reaction that only occurs in plants.
A reaction that produces light.
Why is it important for students to understand the chemical equations for photosynthesis and cellular respiration? (DoK Level 3)
To memorize them for tests only.
To understand how energy flows and cycles in living organisms.
Because they are easy to remember.
Because they are unrelated to biology.
Which of the following is a stage of photosynthesis?
Glycolysis
Calvin Cycle
Krebs Cycle
Fermentation
What is the main function of the stomata in plants?
Absorbing sunlight
Transporting water
Gas exchange
Producing glucose
Which part of the cell is primarily involved in photosynthesis?
Mitochondria
Nucleus
Chloroplast
Ribosome
What is the role of electron carriers in photosynthesis?
Absorb sunlight
Transport electrons
Store water
Produce oxygen
Explain why the function of the stomata is important for the process of photosynthesis.
It allows the plant to absorb nutrients from the soil.
It enables the exchange of gases necessary for photosynthesis.
It stores the energy produced during photosynthesis.
It breaks down glucose into energy.
How do the parts of the chloroplast contribute to the process of photosynthesis?
They help in cellular respiration.
They provide structure to the cell.
They contain pigments and enzymes needed for photosynthesis.
They store waste products.
What are stomata?
Openings on the bottom of leaves that control gas exchange
Roots that absorb water from the soil
Cells that produce chlorophyll
Tubes that transport nutrients in plants
Which gases are exchanged through the stomata in leaves?
Carbon dioxide and oxygen
Nitrogen and hydrogen
Oxygen and methane
Carbon monoxide and nitrogen
What is the direction of gas movement through the stomata during photosynthesis?
Carbon dioxide enters the leaf, and oxygen exits the leaf
Oxygen enters the leaf, and carbon dioxide exits the leaf
Both carbon dioxide and oxygen enter the leaf
Both carbon dioxide and oxygen exit the leaf
Why are stomata important for plant survival?
They control the exchange of gases necessary for photosynthesis
They absorb sunlight for energy
They store water for the plant
They anchor the plant in the soil
What would likely happen if the stomata on a leaf remained closed for an extended period?
The plant would not be able to take in carbon dioxide for photosynthesis
The plant would absorb too much sunlight
The plant would lose all its water
The plant would grow faster
Which of the following is another name for the Light Reactions in photosynthesis?
Calvin Cycle
Light Dependent Reactions
Dark Reactions
Light Independent Reactions
What is the second stage of photosynthesis called?
Light Reactions
Calvin Cycle
Glycolysis
Krebs Cycle
Which stage of photosynthesis is also known as the Light Independent Reactions?
Light Reactions
Calvin Cycle
Electron Transport Chain
Glycolysis
Explain the difference between Light Dependent and Light Independent reactions in photosynthesis.
Light Dependent reactions require light, while Light Independent reactions do not require light.
Both require light to occur.
Light Independent reactions occur before Light Dependent reactions.
Light Dependent reactions occur in the mitochondria.
Which of the following molecules goes into the light reactions during photosynthesis?
H2O
CO2
Sugar
O2
What is produced during the light reactions of photosynthesis?
O2
CO2
Sugar
H2O
Which molecule goes into the Calvin Cycle (Dark Reactions) during photosynthesis?
CO2
O2
H2O
Light
What is produced as a result of the Calvin Cycle (Dark Reactions)?
Sugar
O2
H2O
Light
Which molecules are cycled between the light reactions and the Calvin cycle in photosynthesis?
ATP and NADPH
O2 and CO2
Sugar and H2O
Light and Sugar
Which of the following structures is found inside a chloroplast?
Mitochondria
Thylakoid
Nucleus
Ribosome
What are the two main stages of photosynthesis that occur in the chloroplast?
Glycolysis and Fermentation
Light-dependent reactions and Calvin cycle
Krebs cycle and Electron transport chain
Transcription and Translation
Where in the chloroplast do the light-dependent reactions of photosynthesis take place?
Stroma
Grana
Thylakoid membranes
Cytoplasm
Which part of the chloroplast contains the grana?
Stroma
Nucleus
Cytoplasm
Cell wall
If you were to create a labeled diagram of a chloroplast, which three structures should you include?
Mitochondria, ribosome, nucleus
Thylakoid, grana, stroma
Cell wall, cytoplasm, vacuole
Endoplasmic reticulum, lysosome, peroxisome
Which structure in the diagram is responsible for the light-dependent reactions of photosynthesis?
Stroma
Thylakoid
Nucleus
Cytoplasm
What is a pigment?
Molecules that absorb light
Molecules that produce sound
Molecules that store energy
Molecules that conduct electricity
Which pigment is the main pigment in plants and makes leaves appear green?
Chlorophyll
Hemoglobin
Melanin
Carotene
Why do plant leaves appear green?
Because chlorophyll reflects green light
Because chlorophyll absorbs green light
Because chlorophyll reflects red light
Because chlorophyll absorbs blue light
Explain how chlorophyll affects the color of plant leaves.
Chlorophyll reflects green light, making leaves appear green.
Chlorophyll absorbs green light, making leaves appear red.
Chlorophyll reflects blue light, making leaves appear blue.
Chlorophyll absorbs all light, making leaves appear black.
What does the diagram represent?
Chlorophyll light absorption spectrum
Water absorption spectrum
Sound wave frequency spectrum
Heat absorption by metals
According to the diagram, what is measured on the x-axis?
Temperature (°C)
Wavelength (nm)
Time (seconds)
Mass (grams)
Based on the diagram, which color of light is likely to be absorbed the least by chlorophyll?
Blue
Green
Red
Violet
If a plant is exposed only to green light, what can you infer about its rate of photosynthesis based on the diagram?
It will be very high
It will be very low
It will be unaffected
It will increase steadily
What is the primary function of an electron carrier in biological systems?
To accept a pair of high-energy electrons and transfer them to another molecule
To break down glucose into energy
To absorb sunlight for photosynthesis
To produce oxygen from water
During photosynthesis, which molecule acts as an electron carrier by cycling between its reduced and oxidized forms?
NADPH and NADP⁺
ATP and ADP
Glucose and fructose
Oxygen and carbon dioxide
What does NADPH transport from the light reactions to the Calvin Cycle in photosynthesis?
Hydrogen and high-energy electrons
Oxygen and water
Carbon dioxide and glucose
Sunlight and chlorophyll
Based on the diagram, what analogy is used to describe the function of NADP⁺ in photosynthetic organisms?
An oven mitt transporting a hot object
A sponge absorbing water
A key opening a lock
A fan cooling a room
Why is it important for electron carriers like NADPH to transport high-energy electrons during photosynthesis?
To transfer energy needed for the Calvin Cycle
To produce heat for the plant
To absorb more sunlight
To create more chlorophyll
Which of the following is a learning goal related to the light reactions in photosynthesis?
List the (full) steps of the light reactions
Describe the process of cellular respiration
Explain the structure of DNA
Identify the phases of mitosis
What are students expected to do regarding the Calvin Cycle according to the learning goals?
Describe the Calvin Cycle
Memorize the periodic table
Draw the structure of a chloroplast
List the types of enzymes
According to the learning goals, what should students be able to identify and explain about photosynthesis?
The adaptations to photosynthesis
The history of photosynthesis research
The types of plant cells
The process of fermentation
Why is it important for students to explain why adaptations to photosynthesis are necessary?
To understand the significance of these adaptations in plant survival
To memorize plant names
To learn about animal behavior
To study the water cycle
Which of the following is NOT mentioned as a learning goal in the provided material?
Identify the inputs and outputs of the Calvin Cycle
Explain what happens in each general step of the Calvin Cycle
Describe the process of animal respiration
Explain why adaptations to photosynthesis are necessary
Which molecule is produced at the end of the light-dependent reactions and is used in the light-independent reactions?
NADPH
Glucose
Oxygen
Carbon dioxide
What is the main function of Photosystem II in the light-dependent reactions?
Absorb light energy and produce high-energy electrons
Produce glucose from carbon dioxide
Convert ATP to ADP
Release carbon dioxide
During electron transport in the light-dependent reactions, what is the energy generated used for?
To pump H+ ions across the thylakoid membrane
To split water molecules into oxygen and hydrogen
To convert glucose into ATP
To produce carbon dioxide
Explain how ATP is formed during the light-dependent reactions of photosynthesis.
H+ ions pass through ATP synthase, causing it to rotate and convert ADP to ATP
Glucose is broken down to release ATP
Oxygen reacts with carbon dioxide to form ATP
NADPH is converted directly into ATP
Why is the movement of hydrogen ions (H+) across the thylakoid membrane important in the light-dependent reactions?
It creates a concentration gradient that drives ATP synthesis
It produces glucose directly
It releases oxygen as a waste product
It absorbs light energy for photosystem I
Which process provides the input for the Light Independent Reactions in photosynthesis?
Light Dependent Reactions
Cellular Respiration
Fermentation
Glycolysis
What is the main input for the Light Independent Reactions?
Products from the Light Dependent Reactions
Oxygen from the air
Water from the soil
Glucose from the plant
Why are the Light Dependent Reactions important for the Light Independent Reactions?
They provide necessary inputs for the Light Independent Reactions.
They produce oxygen for the plant.
They absorb sunlight for the plant.
They create chlorophyll in the plant.
Which molecule is added to ribulose during the first step of the Calvin Cycle?
Oxygen
Nitrogen
Carbon dioxide
Glucose
What is the main purpose of ATP and NADPH in the reduction step of the Calvin Cycle?
To break down glucose
To create a 3-carbon sugar
To absorb sunlight
To release oxygen
What happens during the regeneration of ribulose in the Calvin Cycle?
Glucose is broken down
ATP is used to reform ribulose
Oxygen is released
NADPH is produced
After the Calvin Cycle, what can two 3-carbon sugars combine to form?
Oxygen
Water
Glucose (C₆H₁₂O₆)
Carbon dioxide
Why is the regeneration of ribulose important for the Calvin Cycle?
It allows the cycle to repeat
It produces oxygen
It absorbs sunlight
It creates ATP
Which enzyme is responsible for adding carbon from carbon dioxide to ribulose in the Calvin Cycle?
ATP synthase
RuBisCo
NADPH oxidase
Glucose isomerase
Which of the following factors affects enzyme functionality during photosynthesis?
Temperature
Soil pH
Wind speed
Leaf color
How does light intensity affect photosynthesis?
It affects how much solar energy is absorbed
It changes the color of leaves
It increases soil nutrients
It decreases water loss
