In algae and plants, photosynthesis
happens in the
What component of Earth’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
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
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
Put a few plants, water, sand, and a
heat lamp inside a clear glass aquarium and seal the top. Place it in a sunny
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
Which component of the earth’s
atmosphere is decreased due to photosynthesis?