Untitled Lesson

Open Ended

Why is energy important for cells to perform biological work?

Multiple Choice

Which of the following is NOT a type of energy mentioned in the lesson?

• Light energy

• Mechanical energy

• Chemical energy

• Thermal energy

Open Ended

Explain why ATP is often referred to as the 'energy currency' of the cell. Use examples from the lesson to support your answer.

Multiple Select

Which of the following are components of an ATP molecule?

• Adenine

• Ribose

• Three phosphate groups

• Glucose

Multiple Choice

What happens when the bond between the 2nd and 3rd phosphate groups in ATP is broken?

• Energy is stored

• Energy is released

• ATP is formed

• Glucose is produced

Multiple Select

Cells use ATP for which of the following processes?

• Responding to signals on the cell’s surface

• Creating proteins

• Active transport of substances across the cell membrane

• Photosynthesis

Multiple Choice

What happens when the last phosphate group is removed from ATP?

• Energy is released for the cell to use

• ATP is destroyed

• ATP becomes a protein

• No change occurs

Open Ended

Explain how autotrophs and heterotrophs obtain their energy differently.

Multiple Select

Which of the following are true about chloroplasts?

• They contain chlorophyll

• They have two membranes

• They are found in animal cells

• They contain stacks of thylakoids

Multiple Choice

Why do leaves appear green to our eyes?

• Chlorophyll reflects green light

• Chlorophyll absorbs green light

• Leaves contain green pigments only

• Green light is absorbed by the soil

Open Ended

Describe the difference between light-dependent and light-independent reactions in photosynthesis.

Multiple Choice

Which of the following are required resources for photosynthesis?

• Sunlight, carbon dioxide, water, chlorophyll

• Oxygen, glucose, sunlight, nitrogen

• Water, oxygen, ATP, glucose

• Chlorophyll, nitrogen, glucose, carbon dioxide

Open Ended

Explain the difference between light-dependent and light-independent reactions in photosynthesis.

Open Ended

Describe the role of chlorophyll in the process of photosynthesis.

Multiple Choice

Where do the light-dependent reactions of photosynthesis occur, and what is their main function?

• In the thylakoids; to collect light and produce ATP and NADPH

• In the stroma; to produce glucose

• In the mitochondria; to generate ATP

• In the cytoplasm; to break down glucose

Multiple Choice

What is the main purpose of photolysis in the light-dependent reactions of photosynthesis?

• To break down water and provide electrons for the electron transport chain

• To produce glucose directly

• To absorb sunlight and convert it to ATP

• To release carbon dioxide from the plant

Multiple Select

Which of the following are products of the light-dependent reactions of photosynthesis?

• ATP

• NADPH

• Glucose

• Oxygen

Open Ended

Explain why the light-independent reactions do not require sunlight and describe where they occur within the chloroplast.

Multiple Choice

Which molecules enter the Calvin Cycle to help produce glucose?

• CO2, ATP, and NADPH

• O2, ATP, and NADPH

• CO2, ADP, and NADP+

• Glucose, ATP, and NADPH

Multiple Choice

Which of the following is NOT an example of biological work that requires energy in cells?

• Muscle movements

• Generation of nerve signals

• Pumping blood

• Passive diffusion of oxygen into the cell

Open Ended

Summarize one way in which cells use energy for biological work, and explain why this is important for living organisms.