Howell YTQ Photosynthesis

Besides plants, which other types of organisms are capable of performing photosynthesis?

• Animals and fungi

• Some protists and some bacteria

• Viruses and archaea

• All eukaryotic organisms

Why is photosynthesis considered a vital process for most life forms on Earth?

• It directly provides heat for the planet.

• It produces the oxygen we breathe and the food we eat.

• It helps in the decomposition of dead organic matter.

• It regulates the Earth's magnetic field.

In an ecosystem's food web, what is the role of organisms that perform photosynthesis?

• Consumers

• Decomposers

• Producers

• Scavengers

What is the primary sugar molecule produced by plants during photosynthesis?

• Fructose

• Sucrose

• Glucose

• Lactose

How do plants primarily obtain the glucose they need for energy and growth?

• By absorbing it from the soil

• By consuming other organisms

• By producing it themselves through photosynthesis

• By taking it from the atmosphere

The overall chemical equation for photosynthesis is often described as being the reverse of which other biological process?

• Fermentation

• Cellular respiration

• Glycolysis

• Protein synthesis

Which two substances are the main reactants (inputs) required for the overall process of photosynthesis?

• Glucose and oxygen

• Carbon dioxide and water

• ATP and NADPH

• Light and chlorophyll

What are the two main products (outputs) generated by the overall process of photosynthesis?

• Carbon dioxide and water

• ATP and NADPH

• Glucose and oxygen

• Light and heat

What is the primary pigment found in plants that absorbs light energy for photosynthesis?

• Carotene

• Anthocyanin

• Xanthophyll

• Chlorophyll

Why do plants typically appear green to the human eye?

• They absorb all colors of light equally.

• Chlorophyll absorbs green light and reflects other colors.

• Chlorophyll reflects green light and absorbs red and blue light.

• They produce green light during photosynthesis.