Chapter 6 Energy and Metabolism Quiz

What are the two major types of metabolic pathways?

• Anabolic and catabolic

• Aerobic and anaerobic

• Photosynthesis and respiration

• Digestive and excretory

How do chemical reactions contribute to energy transfer in metabolism?

• By breaking down compounds to release energy

• By storing energy in chemical bonds

• Both A and B

• Neither A nor B

What is the primary source of energy that sustains most of Earth's life forms according to the text?

• Wind

• Sun

• Geothermal energy

• Hydroelectric power

What does bioenergetics study?

• The study of biological molecules

• The study of energy flow through a living system

• The study of ecosystems

• The study of animal behavior

According to the diagram, which group is directly responsible for converting energy from the sun into usable forms?

• Consumers

• Decomposers

• Producers

• None of the above

What role do decomposers play in the energy flow of an ecosystem as shown in the diagram?

• Convert sunlight into energy

• Consume other organisms

• Break down organic material and return nutrients to the soil

• Generate heat energy

What does metabolism refer to in biological terms?

• The physical growth of an organism

• All chemical reactions of a cell or organism

• The digestion of food in animals

• The production of energy in plants only

What is a metabolic pathway?

• A process that breaks down nutrients in the body

• A series of physical changes in the cell

• A series of biochemical reactions that converts substrates into a final product

• A type of enzyme in the liver

During photosynthesis, what compounds are converted into glucose?

• O2 and C6H12O6

• N2 and H2O

• CO2 and H2O

• ATP and NADPH

What happens to the energy stored in glucose during cellular respiration?

• It is stored as fat in the organism

• It is converted back into sunlight energy

• It is released, regenerating CO2 and H2O

• It is used to produce oxygen