Photosynthesis Basics
What are the two main products of photosynthesis?
Glucose and Oxygen
In which organelle does photosynthesis occur?
Chloroplast
What factor increases the rate of photosynthesis when it is more abundant?
Light
What type of energy is stored in glucose?
Chemical energy
Which trophic level has the most energy?
Producers
What two molecules are the main reactants in photosynthesis?
CO2 and H2O (light)
What is the name of the stacks of thylakoids in chloroplasts?
Grana
How does temperature affect photosynthesis?
It works best in an optimal temperature range
What type of energy do plants capture from the sun?
Light energy
How much energy is roughly transferred from one trophic level to the next?
10%
Why do plants need photosynthesis?
To make chemical energy (glucose)
What pigment in chloroplasts absorbs light energy?
Chlorophyll
What effect does the color or wavelength of light have on photosynthesis?
Different colors affect the rate of photosynthesis
Which law of thermodynamics explains that energy cannot be created or destroyed?
First law of thermodynamics
Which trophic level would a fox occupy?
Secondary or tertiary consumer
Will photosynthesis increase or decrease if CO2 levels are extremely low?
Decrease
Which part of the chloroplast is the site of the Calvin cycle?
Stroma
The temperature around a plant is too high. How will this affect photosynthesis?
It will slow down.
Why does energy decrease at each level of a food chain?
Energy is lost as heat
What happens to a population of herbivores if producers decline?
It decreases
Explain why photosynthesis is an "energy-transforming" process
It converts light energy into chemical energy
How does the structure of chloroplasts maximize photosynthesis efficiency?
Thylakoids increase surface area for light absorption
Name three main factors that can limit the rate of photosynthesis.
Light, CO₂, temperature
How does photosynthesis demonstrate the first law of thermodynamics?
Sunlight energy is converted into chemical energy
Why do top predators require large territories?
Less energy is available at higher levels