Fall 2024 Semester Exam (GenBio)

Front

What is a dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

What is the function of the flagellum in bacterial cells?

Back

The flagellum is a structure that enables locomotion (movement) in bacterial cells.

Front

What are lipids and what are their main components?

Back

Lipids are organic molecules made of Carbon, Hydrogen, and Oxygen, typically consisting of a glycerol backbone and three fatty acid tails.

Front

What is the role of the endoplasmic reticulum in a cell?

Back

The endoplasmic reticulum manufactures proteins and transports them within the cell.

Front

What happens to a cell when water flows into it?

Back

When water flows into a cell, it causes the cell to swell.

Front

What is an independent variable in an experiment?

Back

The independent variable is the factor that is manipulated or changed in an experiment to observe its effect on the dependent variable.

Front

What is the structure of a lipid?

Back

A lipid typically consists of a glycerol molecule bonded to three fatty acid chains.

Front

What is the function of pili in bacterial cells?

Back

Pili are hair-like structures that help bacteria adhere to surfaces and can also play a role in movement.

Front

What is the primary function of the cell membrane?

Back

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

Front

What is osmosis?

Back

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