Day 2: Biology SOL Review- Cells and Transport

Front

What is the function of flagella in organisms?

Back

Flagella are whip-like structures that enable movement in certain organisms.

Front

Define diffusion in the context of cell transport.

Back

Diffusion is the passive movement of molecules from an area of high concentration to an area of low concentration.

Front

What is required for active transport to occur?

Back

Active transport requires energy, usually in the form of ATP, to move substances against their concentration gradient.

Front

What distinguishes prokaryotic cells from eukaryotic cells?

Back

Prokaryotic cells lack membrane-bound organelles and a nucleus, while eukaryotic cells have both.

Front

What evidence supports the germ theory of infectious disease?

Back

The germ theory is supported by evidence that pathogens can cause disease, such as when a healthy organism becomes sick after exposure to a pathogen.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane.

Front

What is an isotonic solution?

Back

An isotonic solution has the same concentration of solutes as another solution, resulting in no net movement of water.

Front

Explain the role of carrier proteins in cell transport.

Back

Carrier proteins facilitate the movement of substances across the cell membrane, especially during active transport.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell, causing it to shrink.

Front

What is the primary difference between passive and active transport?

Back

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