Biology: Photosynthesis and Respiration

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False (B)

Chlorophyll

<p>decreases</p> Signup and view all the answers

<p>Hydrogen = Higher Up Nitrogen = Lower Down Helium = Higher Up Carbon Dioxide = Lower Down</p> Signup and view all the answers

Process where plants make glucose from CO₂, water, and light.

Process of breaking down glucose for energy, releasing CO₂ and water.

6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂; shows conversion of materials.

6 O₂ + C₆H₁₂O₆ → 6 CO₂ + 6 H₂O + 2880 kJ; shows breakdown of glucose.

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Weight of air above a point, decreases with altitude.

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Photosynthesis is the process where green plants make glucose using carbon dioxide, water, and light energy
Chlorophyll, a green pigment, absorbs sunlight for this process
Equation: 6CO₂ + 6H₂O + Sunlight → C₆H₁₂O₆ + 6O₂

Respiration is the process where living organisms break down glucose to release energy, carbon dioxide, and water.
This process occurs in the presence of oxygen
Equation: C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + 2880 kJ

Air pressure is the weight of the air above a specific location
It is caused by gravity pulling the air toward the Earth's center
Air pressure decreases as you move further away from the Earth's surface
Lighter gases like hydrogen and helium are further from the surface, while heavier gases like carbon dioxide, oxygen, and nitrogen are closer to the surface