Equation
What is the photosynthesis equation?
Carbon dioxide + water + sunlight → glucose + oxygen
What pigment in plant cells captures sunlight to start the process of photosynthesis?
Chlorophyll
What organism must eat other organisms for energy?
Heterotroph
What process turns liquid water into water vapor?
Evaporation
Give an example of an autotroph.
Plants or algae
the starting substances in a chemical reaction are called?
What gas do plants take in during photosynthesis?
Carbon Dioxide
What process releases energy from glucose using oxygen in cells?
Cellular respiration
List 2 types of precipitation
Rain, snow, sleet
Why are autotrophs essential to ecosystems?
They produce food (energy) that supports all other organisms
the new substances that are formed in a chemical reaction are?
products
What would happen to oxygen levels on Earth if photosynthesis stopped?
Oxygen levels would decrease because it is no longer being produced
What process converts nitrogen gas from the atmosphere into a form that plants can use?
Nitrogen fixation
What process occurs when water vapor cools and changes back into liquid droplets, forming clouds?
Condensation
What does the Law of Conservation of Energy state?
Energy cannot be created or destroyed
What are the products of photosynthesis?
Glucose and oxygen
What is the main energy molecule produced in respiration?
ATP
What process allows cells to release energy from glucose when oxygen is not available?
Fermentation
What drives the water cycle?
The sun
Where does photosynthesis take place in the cell?
Chloroplast
What is the main purpose of photosynthesis for a plant?
To produce glucose (food) for energy and growth
During photosynthesis, matter is rearranged but not lost. Which law explains this?
Law of Conservation of Mass
Why is fermentation less efficient than cellular respiration?
It produces less ATP (energy)
What is the process where plants release water vapor from their leaves into the atmosphere?
Transpiration
How does the greenhouse effect help maintain life on Earth?
It traps heat and keeps Earth warm