1
What is the original source of energy for almost all living things on Earth?
the sun
Which gas do plants release during photosynthesis that animals need for cellular respiration?
Oxygen
What is the name of the energy molecule produced by cellular respiration?
ATP
Where in the cell does cellular respiration take place?
MITOCHONDRIA
What process do plants use to capture energy from sunlight?
photosynthesis
Which organelle in plant cells carries out photosynthesis?
chloroplast
True or False: Cellular respiration produces energy for the cell.
TRUE
What molecule is broken down during cellular respiration to release energy?
glucose
Which organelle in both plant and animal cells breaks down glucose to release energy?
mitochondria
What two main products are made during photosynthesis?
glucose and oxygen
What pigment is inside chloroplasts that helps with photosynthesis?
Chlorophyll
Which organelle in plant cells captures sunlight?
Chloroplast
What is ATP, and why do cells need it?
ATP (adenosine triphosphate) is the main energy-carrying molecule in cells. Cells need it to perform all their functions, such as growth, movement, and chemical reactions.
Why don’t animal cells perform photosynthesis?
Animal cells don’t have chloroplasts and cannot capture sunlight to make glucose.
Name two product of photosynthesis that is used in cellular respiration.
glucose and oxygen
Name TWO products of cellular respiration that are released into the environment.
carbon dioxide and water
How do the products of photosynthesis (glucose and oxygen) help cells perform cellular respiration?
Glucose provides the fuel, and oxygen is used to release energy from glucose in cellular respiration.
How is glucose used by cells to store energy?
Glucose stores chemical energy that can later be broken down in cellular respiration to make ATP.
600: How does the energy originally captured from the Sun get transferred to living organisms through these processes?
Sunlight is captured by plants during photosynthesis to make glucose. Animals (and plants themselves) eat or use glucose, then break it down in mitochondria during cellular respiration to release energy as ATP for cellular activities.
Name one difference between photosynthesis and cellular respiration.
Photosynthesis captures energy from sunlight to make glucose and oxygen, while cellular respiration breaks down glucose with oxygen to release energy as ATP.