Exploring Photosynthesis and Cellular Respiration

The video tutorial covers cellular respiration and photosynthesis, focusing on how organisms like emperor penguins and plants manage energy and biomass. It explains the breakdown of glucose into CO2 during cellular respiration and how plants use photosynthesis to gain biomass. The tutorial also includes an experiment with radish seeds to illustrate these concepts, emphasizing the importance of cellular respiration in plants, even at night, and the role of stored energy in seeds before photosynthesis begins.

Where does the majority of the biomass go when emperor penguins fast?

• It turns into muscle mass.

• It is converted into water.

• It is lost as CO2 and H2O.

• It is stored as fat.

What is the primary waste product of cellular respiration?

• Nitrogen

• Hydrogen

• Oxygen

• Carbon dioxide

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In the seed experiment, which condition allowed for photosynthesis?

• Light but no water

• Water but no light

• No light and no water

• Light and water

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How do plants gain biomass?

• By absorbing water

• Through soil nutrients

• By converting CO2 into glucose

• By cellular respiration

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Why can't plants perform photosynthesis at night?

• They are conserving energy

• Temperature drop

• They switch to cellular respiration

• Lack of sunlight

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What process do plants use to produce energy at night?

• Chlorophyll activation

• Water absorption

• Cellular respiration

• Photosynthesis

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Where does the energy in seeds come from before photosynthesis begins?

• Water

• Soil minerals

• Sunlight

• Stored glucose

What happens to a plant's weight during cellular respiration?

• It increases

• It decreases

• It remains the same

• It fluctuates unpredictably

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How do plants manage their energy needs when photosynthesis cannot occur?

• By absorbing more water

• Through cellular respiration

• By going into a dormant state

• By absorbing energy from the moon

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What is the role of CO2 in plant growth?

• It is converted into oxygen

• It is used to create glucose

• It is a waste product

• It helps in water absorption

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