Biology for Energy Solutions Review

What happens to enzymes after they catalyze a reaction?

• They are used up

• They are changed

• They remain unchanged and reusable

• They are destroyed

What is the role of enzymes in chemical reactions?

• Slow down reactions

• Speed up reactions

• Stop reactions

• Initiate reactions

What do proteins in the chloroplast membrane use to excite electrons?

• Chemical energy

• Mechanical energy

• Light energy

• Thermal energy

Which pigment is primarily involved in capturing light energy for photosynthesis?

• Hemoglobin

• Chlorophyll

• Melanin

• Carotene

What are the main reactants required for photosynthesis?

• Oxygen and glucose

• Carbon dioxide and water

• Nitrogen and water

• Carbon dioxide and oxygen

What are the main products of photosynthesis?

• Carbon dioxide and water

• Glucose and oxygen

• ATP and nitrogen

• Glucose and carbon dioxide

How do photoautotrophs make their food?

• By consuming other organisms

• By using energy from sunlight (photosynthesis)

• By absorbing nutrients from the soil

• By breaking down organic matter

What type of organisms are Protista usually classified as?

• Multicellular prokaryotic organisms

• Single-celled eukaryotic organisms

• Multicellular eukaryotic organisms

• Single-celled prokaryotic organisms

Which of the following statements best describes protists?

• They are a well-defined group with many common characteristics.

• They are defined by exclusion, not being animals, plants, fungi, or prokaryotes.

• They are exclusively multicellular organisms.

• They are only found in aquatic environments.