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WorksheetsPhotosynthesis & Cellular Respiration Review
Total questions: 35
Worksheet time: 21mins
Which raw materials are needed for cellular respiration?
Water and Oxygen
Water and Glucose
Water and Carbon Dioxide
Glucose and Oxygen
What products are formed during cellular respiration?
Water and Oxygen
Glucose and Oxygen
Water and Glucose
Water and Carbon Dioxide
During cellular respiration, is energy absorbed or released?
Released
Absorbed
The energy from respiration is captured in which molecule?
Light Energy
Glucose
Adenosine Triphosphate (ATP)
Carbon Dioxide
Most of the process for cellular respiration happens in which organelle?
Golgi Body
Mitochondria
Nucleus
Chloroplasts
Which organelle is the primary site where photosynthesis takes place in plant cells?
Nucleus
Ribosome
Chloroplast
Mitochondrion
In photosynthesis, which set correctly lists the main reactants used by plants?
Glucose and oxygen
Water and carbon dioxide
Minerals and proteins
Nitrogen and methane
A kelp forest has sea otters, sea urchins, and kelp. Which organism releases oxygen through photosynthesis?
Kelp
Small heterotrophs
Sea urchins
Sea otters
During photosynthesis, what energy transformation occurs inside chloroplasts?
Chemical to thermal energy
Light to chemical energy
Mechanical to electrical energy
Heat to kinetic energy
A plant in an aquarium releases tiny bubbles during daylight. What are these bubbles most likely made of?
carbon dioxide from respiration
oxygen gas from photosynthesis
nitrogen gas from the water
water vapor from evaporation
Which statement best distinguishes autotrophs from heterotrophs?
store energy as complex sugars
make their own food using light
eat other organisms for energy
release oxygen during respiration
A lizard’s metabolic rate increases on a warm day. Which factor most directly explains this change?
less food slows energy production
extra oxygen lowers enzyme activity
more sunlight reduces respiration
higher temperature speeds reactions
Max wants to help goldfish struggling in a tank. Which action would most likely increase their rate of cellular respiration?
adding more carbon dioxide gas
increasing the oxygen in the tank
removing food from the tank
reducing sunlight hitting the tank
Where do autotrophs get the needed carbon and hydrogen atoms to produce glucose during photosynthesis?
carbon from air; hydrogen from water
carbon from water; hydrogen from air
carbon from air; hydrogen from air
carbon from water; hydrogen from water
How are cellular respiration and photosynthesis related, in terms of energy?
The energy transformed to ATP in cellular respiration is used to power photosynthesis.
Photosynthesis and respiration perform the same task in terms of energy transformation
Energy is not involved in either photosynthesis or cellular respiration.
The energy captured in photosynthesis is transformed into the chemical compound used to power cellular respiration.
Which would NOT happen if one source of energy were removed from the ecosystem? Select the TWO that apply
The organisms relying on it would thrive
The organisms relying on it would not be able to survive
The organisms that needed those would not survive
The organisms relying on it would continue on the same trend they had been following
Using the photosynthesis equation, which statement best demonstrates conservation of matter in this process?
Water molecules are transformed directly into oxygen atoms
Oxygen atoms disappear when light energy is captured
Energy input increases the number of glucose molecules
The number of atoms in reactants equals the products
Heterotrophs cannot survive without autotrophs. Why?
The sun is ultimate energy and autotrophs make usable energy via photosynthesis.
Heterotrophs are not dependent on autotrophs for survival.
The sun is ultimate energy and neither group can convert it alone.
The sun is ultimate energy and heterotrophs convert light for the ecosystem.
Why do plants hold a small amount of oxygen produced during photosynthesis?
Plants do not keep any oxygen from photosynthesis for respiration.
Plants use that oxygen in cellular respiration to break down sugars.
Plants need that oxygen so they can breathe air directly.
Plants use that oxygen in photosynthesis to break down sugars.
A closed system contains only mice. Graphs show oxygen concentration decreasing over time and carbon dioxide concentration increasing over time. What process explains these data?
Evaporation of water in the chamber
Photosynthesis happening in the chamber
Active transport across cell membranes
Cellular respiration occurring in mice
If autotrophs were removed from a stable ecosystem, what would most likely happen to heterotroph populations over time?
Heterotroph numbers would rapidly increase and then stabilize.
Heterotroph numbers would gradually decline due to energy shortage.
Heterotroph numbers would instantly disappear with no lag.
Heterotroph numbers would stay the same without any changes.
Which statement best describes where the two main stages of cellular respiration occur inside a cell?
First in cytoplasm, second in mitochondria
Both stages in cytoplasm only
First in mitochondria, second in cytoplasm
Both stages in mitochondria only
During the second stage of cellular respiration in mitochondria, which gas is required for the reactions to proceed?
Nitrogen is required
Water vapor is required
Oxygen is required
Carbon dioxide is required
Which waste product is released when molecules are broken down further in the mitochondria during cellular respiration?
Carbon dioxide is released
Oxygen is released
Glucose is released
Nitrogen gas is released
As an Arizona poppy plant carries out photosynthesis, which event does NOT occur during Stage 1 of the process?
Oxygen is released as waste.
Water splits into hydrogen and oxygen.
Carbon dioxide is used to make the sugar glucose.
Chlorophyll absorbs light energy.
A student claims that photosynthesis and cellular respiration are connected in a cycle that helps plants survive. Which option best supports this claim using correct evidence and reasoning?
Evidence: They produce their own food from sunlight. Reasoning: They don’t need to break down glucose like animals do.
Evidence: Photosynthesis happens in plants, and respiration happens in animals. Reasoning: Since they happen in different organisms, they are not connected.
Evidence: It creates food for the plant. Reasoning: Since food is needed, the other process isn’t as necessary.
Evidence: The oxygen and glucose made in photosynthesis are used in cellular respiration. Reasoning: Cellular respiration then releases carbon dioxide and water, which are used again in photosynthesis.
Which statement correctly compares light-dependent and light-independent reactions?
Light-independent reactions occur in the mitochondria.
Light-dependent reactions make energy; light-independent reactions use it.
Both happen only at night.
Both require sunlight directly.
In photosynthesis, what is the main role of chlorophyll during the light-dependent reactions?
Absorb light energy.
Store glucose for future use.
Transport water from roots to leaves.
Release carbon dioxide to the air.
How can energy from the sun be transferred to animals?
The sun's energy is transformed into food by plants, animals eat plants as food so that they can transform that food into energy.
Plants produce energy through photosynthesis, animals that eat that energy can produce food.
Plants transform energy of the sun into gases that animals can breathe in to use as energy through respiration.
Animals are able to use energy from the sun by eating the plants that provides energy for the animals.
Does the following definition describe photosynthesis or cellular respiration?
"The process by which plants capture energy from the sun and use it to make food"
photosynthesis
cellular respiration
Does the following definition describe photosynthesis or cellular respiration?
"The process by which cells obtain energy from glucose"
photosynthesis
cellular respiration
Does the following equation refer to photosynthesis or cellular respiration? carbon dioxide + water + sunlight (energy source) --> glucose + oxygen
photosynthesis
cellular respiration
Does the following equation refer to photosynthesis or cellular respiration? glucose + oxygen --> carbon dioxide + water + energy
photosynthesis
cellular respiration
Is cellular respiration done by all organisms? Even Plants?
Yes
No
