Unit 1 Knowledge Check

Front

What is a prokaryote?

Back

A prokaryote is a single-celled organism that lacks a nucleus and membrane-bound organelles. Examples include bacteria.

Front

What is a eukaryote?

Back

A eukaryote is an organism whose cells contain a nucleus and membrane-bound organelles. Examples include plants, animals, and fungi.

Front

What is the function of vesicles in a cell?

Back

Vesicles transport packaged molecules from the Golgi apparatus to be released out of the cell.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What are mitochondria?

Back

Mitochondria are organelles in eukaryotic cells that produce energy through cellular respiration.

Front

What are chloroplasts?

Back

Chloroplasts are organelles found in plant cells that conduct photosynthesis, converting light energy into chemical energy.

Front

What is the plasma membrane?

Back

The plasma membrane is a biological membrane that separates and protects the interior of all cells from the outside environment.

Front

What is cellular evolution?

Back

Cellular evolution refers to the process by which cells have changed and diversified over time, leading to the development of complex life forms.

Front

What is the Golgi apparatus?

Back

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

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy to move substances across cell membranes, while active transport requires energy to move substances against their concentration gradient.