Biology Unit 3 Part 1 (For Final Review)

Front

What is a Prokaryote?

Back

A Prokaryote is a type of cell that does not have a nucleus and is characterized by the absence of membrane-bound organelles.

Front

What is a Eukaryote?

Back

A Eukaryote is a type of cell that has a nucleus and membrane-bound organelles, such as mitochondria and endoplasmic reticulum.

Front

What happens to salt in a hypotonic solution?

Back

In a hypotonic solution, salt will move into the cell, causing the cell to swell.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane is a barrier that allows certain substances to pass while blocking others, regulating what enters and leaves the cell.

Front

What is homeostasis?

Back

Homeostasis is the maintenance of a relatively stable internal environment within an organism, despite external changes.

Front

What is Active Transport?

Back

Active Transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy.

Front

What is Facilitated Diffusion?

Back

Facilitated Diffusion is the process by which substances move across a cell membrane with the help of transport proteins, without the use of energy.

Front

What is Osmosis?

Back

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

Front

What is the function of the cell membrane?

Back

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

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their gradient.