Biology Semester I Midterm Review

Front

What type of cell transport uses transport proteins in the cell membrane?

Back

Facilitated Diffusion: A process that allows substances to cross membranes with the assistance of special proteins.

Front

What is the formula to find total magnification in a microscope?

Back

Total Magnification = Eyepiece Magnification x Objective Lens Magnification.

Front

What is homeostasis?

Back

Homeostasis: The ability of an organism to maintain a stable internal environment despite changes in external conditions.

Front

What is an independent variable in an experiment?

Back

Independent Variable: The variable that is deliberately changed or manipulated by the scientist.

Front

How do you calculate total magnification using eyepiece and objective lens?

Back

Multiply the eyepiece magnification by the objective lens magnification.

Front

What is diffusion?

Back

Diffusion: The movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is osmosis?

Back

Osmosis: The diffusion of water across a selectively permeable membrane.

Front

What is the dependent variable in an experiment?

Back

Dependent Variable: The variable that is measured or observed in response to changes in the independent variable.

Front

What is the control group in an experiment?

Back

Control Group: The group in an experiment that does not receive the treatment and is used for comparison.

Front

What is the function of transport proteins?

Back

Transport Proteins: Proteins that help move substances across a cell membrane.