Biology STAAR Review Category 1 -

Front

What is a lysogenic infection?

Back

A lysogenic infection is a type of viral infection where the virus integrates its genetic material into the host's DNA and can remain dormant for a long period without causing immediate harm.

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What is a lytic infection?

Back

A lytic infection is a type of viral infection where the virus takes over the host cell's machinery to produce new viruses, leading to the destruction of the host cell.

Front

What does semi-permeable mean?

Back

Semi-permeable means that a membrane allows only some materials to cross while blocking others.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that allows substances to cross membranes with the assistance of special proteins.

Front

What is isotonic solution?

Back

An isotonic solution is one where the concentration of solutes is the same on both sides of a membrane, resulting in no net movement of water.

Front

What distinguishes prokaryotic cells from eukaryotic cells?

Back

The main distinction is the organization of genetic material; prokaryotic cells have no nucleus, while eukaryotic cells have a defined nucleus.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, relying on concentration gradients.

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.

Front

What is the function of flagella?

Back

Flagella are tail-like structures that enable movement in certain cells, such as bacteria.

Front

What is the difference between hypertonic and hypotonic solutions?

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of the cell, causing the cell to lose water. A hypotonic solution has a lower concentration of solutes, causing the cell to gain water.