Unit 4

Question 1

What is the formula for photosynthesis?

Answer 1

6CO2 + 6H2O + light energy → C6H12O6 + 6O2

This represents the process by which plants convert carbon dioxide and water into glucose and oxygen using light energy.

Question 2

What is the formula for cellular respiration?

Answer 2

C6H12O6 + 6O2 → 6CO2 + 6H2O + energy (ATP)

This describes how glucose and oxygen are converted into carbon dioxide, water, and energy.

Question 3

How are cellular respiration and photosynthesis related?

Answer 3

Products of one are reactants of the other

Photosynthesis produces glucose and oxygen, which are used in cellular respiration, while cellular respiration produces carbon dioxide and water, which are used in photosynthesis.

Question 4

What is ATP?

Answer 4

Energy molecule that releases energy when phosphate bonds are broken

ATP (adenosine triphosphate) is essential for energy transfer within cells.

Question 5

What are the three stages of cellular respiration?

Answer 5

Glycolysis, Krebs cycle, Electron Transport Chain

These stages are crucial for the production of ATP from glucose.

Question 6

What are the two stages of photosynthesis?

Answer 6

Light-dependent reactions and the Calvin cycle

Light-dependent reactions capture energy from sunlight, while the Calvin cycle uses that energy to synthesize glucose.

Question 7

Compare and contrast electron transport systems.

Answer 7

Both use electron carriers; differ in energy sources and outputs

Electron transport systems are key components in both cellular respiration and photosynthesis.

Question 8

What are the stages of the cell cycle?

Answer 8

Interphase (G1, S, G2), Mitosis, Cytokinesis

The cell cycle is essential for cell growth, DNA replication, and division.

Question 9

What is mitosis?

Answer 9

Division of a cell’s nucleus for growth and repair

Mitosis ensures that each daughter cell receives an identical set of chromosomes.

Question 10

What is cancer?

Answer 10

Uncontrolled cell division

Cancer cells grow and divide without the normal regulatory mechanisms.

Question 11

What do you know about cancer?

Answer 11

Caused by mutations disrupting cell cycle regulation

Mutations can arise from various factors, including environmental influences and genetic predisposition.

Question 12

What questions did we have about cancer?

Answer 12

Prevention, causes, treatment options, and early detection methods

These are critical areas of research and public health focus in understanding and managing cancer.