Biology 1 Midterm 2024-2025

Front

What is an independent variable in an experiment?

Back

The independent variable is the variable that is deliberately changed or manipulated by the scientist to observe its effect on the dependent variable.

Front

What are the three parts of Cell Theory?

Back

1. All living things are made of cells. 2. Cells are the basic unit of life. 3. All cells come from pre-existing cells.

Front

How do you calculate total magnification in microscopy?

Back

Total magnification is calculated by multiplying the magnification of the objective lens by the magnification of the eyepiece lens.

Front

What is the total magnification when using a medium-power (10x) objective lens with a 10x eyepiece?

Back

The total magnification is 100x.

Front

What is the function of the smooth endoplasmic reticulum?

Back

The smooth endoplasmic reticulum is involved in lipid metabolism and detoxification of chemicals.

Front

Which organelle is responsible for detoxifying chemicals in the cell?

Back

The smooth endoplasmic reticulum is responsible for detoxifying chemicals.

Front

What is the role of the Golgi apparatus in a cell?

Back

The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles.

Front

Define a dependent variable in an experiment.

Back

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

Front

What is the primary function of ribosomes?

Back

Ribosomes are responsible for protein synthesis in the cell.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells do not have a nucleus or membrane-bound organelles, while eukaryotic cells do.