Light intensity

Carbon dioxide concentration

Oxygen concentration

Temperature

$$6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6 + 6O_2$$

$$C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O$$

$$6CO_2 + 12H_2O \rightarrow C_6H_{12}O_6 + 6O_2 + 6H_2O$$

$$C_6H_{12}O_6 + 6H_2O \rightarrow 6CO_2 + 12H_2O$$

Sunlight is converted into chemical energy stored in glucose.

Sunlight directly splits water molecules into hydrogen and oxygen.

Sunlight is used to transport nutrients in the plant.

Sunlight is stored as ATP in the plant cells.

Mitochondria

Chloroplast

Nucleus

Ribosome

ATP provides energy for the synthesis of glucose.

ATP stores oxygen for later use.

ATP transports carbon dioxide into the chloroplast.

ATP breaks down glucose into simpler molecules.

Autotrophs obtain energy from consuming other organisms, while heterotrophs produce their own food.

Autotrophs produce their own food using sunlight, while heterotrophs obtain energy by consuming other organisms.

Both autotrophs and heterotrophs produce their own food using sunlight.

Both autotrophs and heterotrophs obtain energy by consuming other organisms.

Increasing light intensity always increases the rate of photosynthesis indefinitely.

Increasing light intensity increases the rate of photosynthesis up to a certain point, after which it plateaus.

Decreasing light intensity increases the rate of photosynthesis.

Light intensity has no effect on the rate of photosynthesis.

Producers decompose organic matter.

Producers convert solar energy into chemical energy through photosynthesis, forming the base of the food chain.

Producers consume other organisms for energy.

Producers store energy in the form of ATP for other organisms.

Temperature has no effect on photosynthesis.

Photosynthesis rate increases with temperature up to a point, then decreases if the temperature is too high.

Photosynthesis rate decreases as temperature increases.

Photosynthesis rate is highest at freezing temperatures.

Heterotrophs produce their own food and provide energy for autotrophs.

Heterotrophs consume autotrophs and other heterotrophs, transferring energy through the food chain.

Heterotrophs decompose dead matter, releasing energy back into the ecosystem.

Heterotrophs store energy in the form of glucose for autotrophs.

Increasing carbon dioxide concentration always decreases the rate of photosynthesis.

Increasing carbon dioxide concentration increases the rate of photosynthesis up to a certain level, after which it has no further effect.

Decreasing carbon dioxide concentration increases the rate of photosynthesis.

Carbon dioxide concentration has no effect on the rate of photosynthesis.

Autotrophs release carbon dioxide into the atmosphere through photosynthesis.

Autotrophs convert carbon dioxide into organic compounds, reducing atmospheric carbon levels.

Autotrophs consume carbon dioxide and release methane.

Autotrophs do not play a role in the carbon cycle.

Stomata absorb sunlight for photosynthesis.

Stomata allow the exchange of gases, facilitating the intake of carbon dioxide and release of oxygen.

Stomata store glucose produced during photosynthesis.

Stomata transport water to the leaves.

Temperature and light intensity have no interaction and affect photosynthesis independently.

High temperature always increases the rate of photosynthesis regardless of light intensity.

Optimal temperature and light intensity together maximize the rate of photosynthesis.

Low light intensity can be compensated by high temperature to increase photosynthesis rate.

Water availability has no effect on photosynthesis.

Increased water availability always decreases the rate of photosynthesis.

Water is a reactant in photosynthesis, and its availability can limit the rate of the process.

Water availability only affects the rate of photosynthesis at night.

Leaves are thick and impermeable to maximize water retention

Leaves have a large surface area to absorb more sunlight

Leaves are primarily designed to store glucose

Leaves are colorless to reflect sunlight

red and blue light

green light

yellow light

only red light

exothermic

endothermic

synthesis

decomposition

H₂O + O₂

CO₂ + O₂

C₆H₁₂O₆ + H₂O

H₂O + CO₂

C₆H₁₂O₆ + CO₂

C₆H₁₂O₆ + O₂

C₆H₁₂O₆ + H₂O

H₂O + O₂

omnivors

heterotrophs

autotrophs

carnivores

needed for photosynthesis to occur

a product of cellular respiration

a product of photosynthesis

deadly to humans

to make ATP

to make water

to make carbon dioxide

to make glucose

Absorbs green light

Reflects green light

Absorbs red and blue light

Does not reflect any colors

Bean plants produce more ATP than corn plants.

Corn plants require more oxygen than bean plants.

Corn plants release more carbon dioxide than bean plants.

Corn plants produce sugars at a faster rate than bean plants.

Beyond 500 umol/l CO₂, the rate of photosynthesis does not increase

The rate of photosynthesis increases with CO₂ concentration

After a while, CO₂ production plateaus in photosynthesis

The rate of photosynthesis never exceeds 10 umol O₂ / m^₂ / s

light intensity

carbon dioxide concentration

temperature

water

light intensity

carbon dioxide concentration

temperature

water

increasing the CO₂ from 0.03% to 0.1% at a temperature of 20^oC.

increasing the CO₂ from 0.03% to 0.1% at a temperature of 25^oC.

increasing the temperature from 20^oC to 25oC at a CO₂ concentration of 0.03%

increasing the temperature from 20^oC to 25oC at a CO₂ concentration of 0.1%

Chlorophyll is best at absorbing green and yellow light

Chlorophyll a makes plants either violet or red

Carotenoid is best at absorbing yellow, orange, and red light

Carotenoid is best at absorbing blue-violet light

0 units

5 units

12 units

16 units

The graph does not give this information

I and II only

I and III only

II and III only

I, II and III

I and II only

I and III only

II and III only

I, II and III

As temperature increases, photosynthesis rate also increases.

As temperature decreases, photosynthesis rate also decreases.

Plants cannot photosynthesis if the temperature is too cold or too hot. 

All of the statements are true.

Carbon dioxide

Hydrogen

Chlorine

Oxygen