Photosynthesis and Respiration

Mr. Anderson's video covers the essentials of free energy capture and storage, focusing on photosynthesis and respiration. It explains the roles of autotrophs and heterotrophs in energy production, detailing processes like photosynthesis, chemosynthesis, and fermentation. The video also explores the steps of photosynthesis, including the light reaction and Calvin cycle, and cellular respiration, highlighting glycolysis, the Krebs cycle, and the electron transport chain.

Which areas on Earth have the highest levels of photosynthesis?

• Deserts and polar regions

• Equatorial oceans and tropical rainforests

• Mountainous regions and plateaus

• Urban areas and industrial zones

What is the primary energy source for autotrophs?

• Minerals

• Chemical compounds

• Sunlight

• Organic matter

What process do some organisms use to produce energy in the absence of light?

• Chemosynthesis

• Cellular respiration

• Fermentation

• Photosynthesis

In photosynthesis, what is the role of chlorophyll?

• Produces glucose

• Absorbs light energy

• Releases oxygen

• Absorbs water

Where does the Calvin Cycle take place within the chloroplast?

• Outer membrane

• Thylakoid membrane

• Stroma

• Granum

What significant change occurred on Earth due to photosynthesis about 2 billion years ago?

• Decrease in carbon dioxide levels

• Emergence of multicellular life

• Increase in oxygen levels

• Formation of the ozone layer

What is the primary function of cellular respiration?

• To store energy in fats

• To generate ATP

• To release oxygen

• To produce glucose

Which part of the mitochondria is involved in the electron transport chain?

• Intermembrane space

• Inner membrane

• Matrix

• Outer membrane

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

• NADH

• Oxygen

• Water

• Carbon dioxide

What is the main product of glycolysis?

• FADH2

• NADH

• Pyruvate

• ATP