Biology - Cells and Cell Transport

Front

What is the function of the nucleus in a cell?

Back

The nucleus is the control center of the cell, containing the cell's genetic material (DNA) and regulating gene expression.

Front

What is the role of mitochondria in a cell?

Back

Mitochondria are known as the powerhouse of the cell, as they produce ATP through cellular respiration.

Front

What is the function of vacuoles in plant cells?

Back

Vacuoles store water, nutrients, and waste products, helping to maintain turgor pressure in plant cells.

Front

What are ribosomes responsible for in a cell?

Back

Ribosomes are responsible for protein synthesis, translating messenger RNA (mRNA) into polypeptide chains.

Front

What is diffusion?

Back

Diffusion is the process by which particles spread from an area of high concentration to an area of low concentration until equilibrium is reached.

Front

What is ATP and why is it important for cells?

Back

ATP (adenosine triphosphate) is the primary energy carrier in cells, providing energy for various cellular processes.

Front

What types of substances can pass through the phospholipid bilayer without assistance?

Back

Small nonpolar molecules like oxygen (O2) and carbon dioxide (CO2) can pass through the phospholipid bilayer without help.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the function of the Golgi apparatus?

Back

The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles.

Front

What is the role of the cell membrane?

Back

The cell membrane regulates what enters and exits the cell, providing protection and structural support.