Biology Essentials: Free Energy Capture and Storage

This video tutorial by Mr. Anderson covers the essentials of free energy capture and storage, focusing on photosynthesis and cellular respiration. It explains the roles of autotrophs and heterotrophs in energy capture, the processes of chemosynthesis and fermentation, and provides a detailed breakdown of photosynthesis and cellular respiration, including the light reaction, Calvin cycle, glycolysis, Krebs cycle, and electron transport chain.

What is the primary goal of life in terms of energy?

• To store carbon dioxide

• To create oxygen

• To generate ATP

• To produce glucose

Which organisms use chemosynthesis to produce food?

• Plants

• Birds

• Animals

• Organisms in dark ocean regions

What is the role of chlorophyll in photosynthesis?

• To absorb light energy

• To release oxygen

• To produce carbon dioxide

• To absorb water

What is the main product of the Calvin cycle?

• ATP

• NADPH

• Oxygen

• Sugars

What significant change in Earth's atmosphere is attributed to photosynthesis?

• Decrease in nitrogen levels

• Increase in oxygen levels

• Increase in carbon dioxide levels

• Decrease in water vapor

What is the first step of cellular respiration?

• Krebs cycle

• Electron transport chain

• Glycolysis

• Fermentation

Where does the Krebs cycle occur within the cell?

• In the cytoplasm

• In the chloroplast

• In the nucleus

• In the mitochondria

What is the final electron acceptor in the electron transport chain?

• Water

• Glucose

• Oxygen

• Carbon dioxide

What is produced as a result of the electron transport chain?

• Glucose

• Carbon dioxide

• NADPH

• ATP

What is the role of ATP synthase in cellular respiration?

• To synthesize ATP

• To transport electrons

• To release oxygen

• To break down glucose