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Cell Processes And Energy Detailed Questions and Expert Answers 2024
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Cell Processes And Energy Detailed Questions and Expert Answers 2024
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Cell Processes And EnergyPhotosynthesis - ANS the process by which a cell captures energy in sunlight and
uses it to make food
autotroph - ANS an organism that makes its own food, such as plants
heterotroph - ANS an organism that cannot make its own food, such as zebras and
the lion.
Nearly all living things obtain energy - ANS either directly or indirectly from the
energy captured during photosynthesis
During photosynthesis - ANS plants and other organisms use energy from the sun
to convert water into oxygen and sugars.
Th first stage of photosynthesis - ANS involves capturing the energy in sunlight
chloroplasts - ANS are green organelles inside plant cells
pigments - ANS colored chemical compounds that absorb light
, chlorophyl - ANS the main photosynthetic pigment in chloroplast. Chlorophyl
captures light energy and uses it to power the second stage of photosynthesis.
The second stage of photosynthesis - ANS the cell uses energy to produce sugars
The cell needs two materials at the second stage of photosynthesis - ANS water
H2O and carbon dioxide CO2
water - ANS enters the plant through the roots, travels to the leafs by the stem
stomata - ANS Small openings on the underside of a leaf through which oxygen
and carbon dioxide can move.
Once in the leaves - ANS water and carbon dioxide move into the chloroplasts
Once water and carbon dioxide are in the chloroplast - ANS they undergo a
complex series of chemical reactions powered by the energy captured by the first
stage
Products of photosynthesis - ANS six carbon sugars C6 H12 O6, oxygen O2
Almost all of the oxygen in Earth's atmosphere - ANS was produced by living things
through the process of photosynthesis
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