WorksheetsEnergy Flow in Organisms STEMscopes Concepts
Total questions: 40
Worksheet time: 21mins
The process of obtaining energy from the breaking of chemical bonds in nutrients
Photosynthesis
Chemical reaction
Cellular Respiration
Matter cycle
A substance that takes part in and undergoes change during a reaction
Product
Reactant
Reaction
Molecule
A substance produced during a chemical reaction
Product
Reactant
Chemical Reaction
Glucose
What is a producer?
organism that CANNOT make its own food
organism that gets energy by eating another organism (heterotroph)
an organism that CAN make its own food using photosynthesis
True or False
Photosynthesis takes place in plants, but cellular respiration takes place in plant and animal cells
true
false
What is the overall purpose of photosynthesis?
To use energy from the sun to produce food
To use energy from the sun to produce oxygen
To use energy from the sun to produce carbon dioxide
To use energy from the sun to produce water
Which organisms are capable of photosynthesis?
Plants and Fungi
Animals
Humans
Plants
Photosynthesis takes place in which eukaryotic organelle?
Mitochondria
Ribosome
Chloroplast
Cytoplasm
What is the ultimate ORIGINAL source of energy for living things?
Moon
Sun
Mars
Pluto
What are the reactants in photosynthesis?
carbon dioxide + water + light
sugar + oxygen
none of the above
What are the products in photosynthesis?
carbon dioxide + water + light
sugar + oxygen
none of the above
What are the reactants in cellular respiration?
carbon dioxide + water + ATP
sugar (glucose) + oxygen
none of the above
What are the products in cellular respiration?
carbon dioxide + water + ATP
sugar + oxygen
none of the above
Which of the following best describes the overall purpose of cellular respiration?
To use energy from the sun to produce food (glucose)
To use energy from the sun to produce oxygen
Break down food (glucose) in order to produce energy (ATP)
Take in oxygen in order to be able to produce energy (ATP) Take in oxygen in order to be able to produce energy (ATP)
How are the final products of photosynthesis related to cellular respiration?
They are the starting materials for cellular respiration.
They are also the final products for cellular respiration.
They convert chemical energy into light energy.
They convert chemical energy into light energy.
In which way are photosynthesis and cellular respiration different?
Cellular respiration stores ATP, while photosynthesis releases ATP.
Cellular respiration produces oxygen, while photosynthesis uses oxygen.
Photosynthesis releases energy, while cellular respiration stores energy.
Photosynthesis used carbon dioxide, while cellular respiration produces carbon dioxide.
The release in energy from the sugar that are in plant and animal cells is called...
photosynthesis
transpiration
cellular respiration
transition
Which of the following organelles is responsible for cellular respiration?
Mitochondria
Nucleus
Endoplasmic Reticulum
Ribosome
C6H12O6 is the chemical formula for
Carbon Dioxide
Water
Oxygen
Glucose
O2 is the chemical formula for
Oxygen
Carbon Dioxide
Glucose
Water
Where do animals get the oxygen and glucose they need for cellular respiration?
Plants
Mitochondria
Sun
other animals
What is chlorophyll and how does it help plants?
Chlorophyll is a pigment that absorbs light energy and makes glucose.
Chlorophyll is a protein that changes shape in the presence of sunlight.
Chlorophyll is a receptor that binds carbon dioxide when energized by light
Chlorophyll is an enzyme that catalyzes the production of glucose when exposed to light.
Which type of organism would MOST likely benefit directly from increased levels of CO2?
mushroom
tree
bird
fish
How will clear-cutting of forests affect the level of carbon dioxide in the atmosphere?
It will decrease because of increased respiration.
It will increase because of decreased photosynthesis.
It will decrease because of decreased photosynthesis.
It will remain constant as respiring animals remove the carbon dioxide.
Which statement accurately describes an interaction between plants and animals?
Animals release CO2, required for photosynthesis.
Animals release O2, required for plant survival.
Plants provide humans with atmospheric nitrogen.
Plants provide humans with CO2 for respiration.
People take in and release gases from the air when they breathe. Which exhaled gas is a waste product of respiration?
helium
oxygen
carbon dioxide
hydrogen
Identify the chemical equation:
6O2 + C6H12O6 -> 6CO2 + 6H2O + Energy
Cellular Respiration
Photosynthesis
Identify the chemical equation: 6CO2+6H2O→C6H12O6+6O2
Cellular Respiration
Photosynthesis
