Photosynthesis
What organelle is responsible for photosynthesis in plant cells?
The chloroplast.
What is the main purpose of cellular respiration?
To break down glucose and produce ATP (energy) for the cell.
What gas do plants absorb from the atmosphere during photosynthesis?
Carbon dioxide.
What structure controls what enters and leaves both plant and animal cells?
The cell membrane.
What molecule provides usable energy for cells?
ATP.
What gas do plants take in from the atmosphere during photosynthesis?
Carbon dioxide.
What organelle is responsible for most cellular respiration?
The mitochondria.
What process releases carbon dioxide into the atmosphere when organisms break down glucose for energy?
Cellular respiration.
What structure gives plant cells extra support and protection that animal cells do not have?
The cell wall.
rue or False: Both plant and animal cells have mitochondria.
True.
What are the three main ingredients needed for photosynthesis?
Sunlight, water, and carbon dioxide.
What are the three main products of aerobic cellular respiration?
Carbon dioxide, water, and ATP.
What is the process called when dead organisms are broken down and carbon is returned to the environment?
Decomposition.
What organelle contains DNA and controls the activities of the cell?
The nucleus.
How are photosynthesis and cellular respiration related?
The products of photosynthesis (glucose and oxygen) are the reactants for cellular respiration, and the products of cellular respiration (carbon dioxide and water) are used in photosynthesis.
What gas is released into the atmosphere as a result of photosynthesis?
Oxygen.
What two substances are needed for aerobic cellular respiration to occur?
Glucose and oxygen.
How do burning fossil fuels affect the carbon cycle?
They release stored carbon into the atmosphere as carbon dioxide.
What organelle is found in plant cells but not animal cells and is responsible for photosynthesis?
The chloroplast.
Why are plants considered producers in an ecosystem?
They make their own food using sunlight through photosynthesis.
What green pigment in plants absorbs sunlight for photosynthesis?
Chlorophyll.
Why do muscle cells need more energy during exercise, and how does cellular respiration help provide that energy?
Muscle cells need more energy to contract and move the body. Cellular respiration breaks down glucose to produce ATP, which provides energy for muscle activity.
Name two ways carbon moves from the atmosphere into living organisms.
Plants absorb carbon dioxide through photosynthesis, and animals obtain carbon by eating plants or other animals.
What large storage structure is typically found in plant cells and helps maintain the cell's shape by storing water?
The central vacuole.
A plant is placed in a dark room for several days. Which process will be directly affected because sunlight is unavailable, and why?
Photosynthesis will be affected because light energy is needed to produce glucose.