In algae and plants, photosynthesis happens in the
What component of Earthâ€™s atmosphere exists entirely as a result of photosynthesis?
Carbon dioxide gas
How are the products represented in the chemical equation for photosynthesis?
O2 + 6CO2
C6H12O6 + 6H2O
6CO2 + 6H2O
C6H12O6 + 6O2
Which statement summarizes the main purpose of photosynthesis?
It converts gases to solids in the form of sugar.
It converts carbon to oxygen.
It converts light energy to chemical energy.
It converts energy to mass.
Which of these statements is true about autotrophs, but not heterotrophs?
They use sugar and oxygen to make carbon dioxide and water.
They use chlorophyll and oxygen to make carbon dioxide and water.
They use sunlight, water, and carbon dioxide to make sugars.
They use sunlight, water, and oxygen to make chlorophyll.
Sheela wants to make a computer model of a land ecosystem. Part of her model simulates the chemical processes of photosynthesis that involve the creation of sugars. Which chemical processes are these?
The light-dependent reactions
The light-independent reactions
The dark reactions
The reactions in the mitochondria
James wants to create a self-sustaining ecosystem, or vivarium. Which method would most likely result in an ecosystem that is viable for the longest amount of time with no additional care?
Put a few plants, water, sand, and a heat lamp inside a clear glass aquarium and seal the top. Place it in a sunny location.
Put water, fertilizer, soil, plants and insects in an open, clear glass aquarium. Place it in an area that has some sunlight and some shade.
Put rocks, water, and many plants in an open, dark-colored plastic tub. Place it in an area with direct sunlight.
Put soil, water, many plants, and a few insects in a sealed, clear plastic aquarium. Place it in an area with indirect sunlight
Which component of the earthâ€™s atmosphere is decreased due to photosynthesis?