Photosynthesis
What is the main purpose of photosynthesis?
Its purpose is to make glucose using sunlight.
What is the main purpose of cellular respiration?
Its purpose is to release energy from glucose.
Why are producers important in energy transfer?
They capture sunlight and make food.
What is an enzyme?
An enzyme is a protein that speeds up reactions.
What happens during the light reactions of photosynthesis?
Light energy is captured to make ATP.
What are the inputs of photosynthesis?
The inputs are carbon dioxide, water, and sunlight.
What are the inputs of cellular respiration?
The inputs are glucose and oxygen.
Why do higher trophic levels have less energy?
Energy decreases as it moves up the food chain.
What is activation energy?
It is the energy needed to start a reaction.
Why is ATP important for cells?
It provides usable energy.
What are the outputs of photosynthesis?
The outputs are glucose and oxygen.
What are the outputs of cellular respiration?
The outputs are carbon dioxide, water, and ATP.
Why does energy flow in one direction in ecosystems?
Energy is lost as heat at each level.
How do enzymes speed up reactions?
They lower activation energy.
Why is the nitrogen cycle important?
It provides usable nitrogen for living things.
What is the balanced equation for photosynthesis?
CO₂ + H₂O → C₆H₁₂O₆ + O₂
What is the balanced equation for cellular respiration?
C₆H₁₂O₆ + O₂ → CO₂ + H₂O + ATP
Why does matter cycle but energy does not?
Matter is reused, but energy is lost as heat.
Why is an enzyme’s shape important?
Its shape fits only certain molecules.
What does it mean that enzymes are specific?
Each enzyme works with only one type of molecule.
Why are chloroplasts important for photosynthesis?
They contain chlorophyll that absorbs sunlight.
Why are mitochondria important for respiration?
They are where ATP is produced.
How does carbon move through living things?
It cycles through photosynthesis and respiration.
How does temperature affect enzymes?
Extreme temperatures can change their shape.
Why is glucose important for living things?
It stores chemical energy that cells can release.