Exploring the Cell and Its Processes

What is the primary function of the cell membrane?

• To synthesize proteins

• To control the entry and exit of substances

• To store genetic information

• To produce energy

Which of the following is NOT a component of the cell membrane?

• Phospholipids

• Cholesterol

• Cellulose

• Proteins

During photosynthesis, what molecule absorbs the sunlight?

• Chlorophyll

• Glucose

• Carbon dioxide

• Oxygen

What is the main purpose of photosynthesis?

• To break down glucose and release energy

• To produce oxygen as a waste product

• To convert solar energy into chemical energy stored in glucose

• To consume carbon dioxide from the atmosphere

Which organelle is known as the "powerhouse of the cell" because it produces most of the cell's ATP?

• Ribosome

• Mitochondria

• Vacuole

• Nucleus

In which part of the mitochondria does the electron transport chain occur?

• Outer membrane

• Inner membrane

• Matrix

• Intermembrane space

What is the main function of vacuoles in plant cells?

• To produce proteins

• To store nutrients and waste products

• To generate ATP

• To assist in cell division

Which process occurs in the mitochondria and requires oxygen?

• Glycolysis

• Fermentation

• Krebs cycle

• Electron transport chain

What is the role of the cell membrane in the biochemical process of respiration?

• It synthesizes ATP directly

• It allows the diffusion of gases necessary for respiration

• It stores the glucose needed for respiration

• It captures light energy for ATP production

Which of the following best describes the role of the vacuole in maintaining plant cell structure?

• It provides energy for cell wall synthesis

• It synthesizes proteins for the cell wall

• It maintains turgor pressure to keep the cell rigid

• It stores DNA for cell division