Photosynthesis and Cellular Respiration Level Check

What molecule stores the energy needed for all cellular functions?

• Water
• ATP
• DNA
• phospholipid membrane

How did the carbon dioxide concentration in 1960 compare with that of 2022?

• The concentration of carbon dioxide has decreased.
• The concentration of carbon dioxide has increased and decreased constantly.
• The concentration of carbon dioxide has increased.
• There has been no change in carbon dioxide concentration.

Which process represents the primary mechanism by which organisms convert light energy into chemical energy?

• Glycolysis
• Photosynthesis
• Electron transport
• Cellular metabolism

Why do living things do cellular respiration?

• To make carbon dioxide
• To break down sunlight to make glucose
• To break down glucose to make ATP energy
• To recycle water

What critical environmental factor limits the rate of photosynthesis in most terrestrial ecosystems?

• Wind speed
• Soil pH
• Light intensity
• Atmospheric nitrogen

During cellular respiration, which cellular organelle is responsible for generating the majority of ATP molecules?

• Endoplasmic reticulum
• Mitochondria
• Nucleus
• Chloroplast

Which process produces the most ATP molecules through oxidative phosphorylation? HINT: It is the third step of cellular respiration.

• Electron transport chain
• Substrate-level phosphorylation
• Krebs cycle
• Glycolysis

Which molecule serves as the primary energy currency in biological systems?

• ADP
• NADH
• Glucose
• ATP

What primary factor determines the efficiency of the light-dependent reactions in photosynthesis?

• Wavelength or color of light
• Chlorophyll presence
• Soil nutrients
• Moisture

In the carbon cycle, which process directly transforms atmospheric carbon dioxide into organic compounds such as sugar or glucose?

• Cellular respiration
• Decomposition
• Combustion
• Photosynthesis