A1 Biology Midterm Exam Study Guide

These flashcards cover key concepts and definitions from the A1 Biology Midterm Study Guide, facilitating study for the exam.

What is biology?

Biology is the study of living organisms.

What hypothesis can you make about why seeing the color blue makes people calm?

Seeing blue may be associated with calmness due to its association with nature and water.

What is the importance of reading lab procedures thoroughly before beginning an activity?

It ensures safety and proper conduct during the experiment.

What is the #1 safety rule for the lab?

Always wear personal protective equipment.

What is the independent/manipulated variable in the antibacterial soap experiment?

The application of antibacterial soap.

What is the dependent/responding variable in the antibacterial soap experiment?

The number of bacteria present.

Why is only one plate treated with antibacterial soap?

To ensure that the results can be directly attributed to the soap.

What piece of lab equipment is most useful for pouring 35 mL of vinegar into a beaker?

graduated cylinder.

What type of graph would you use to show temperature increases during the afternoon?

Line graph.

What part of the microscope is rotated to change magnification?

Revolving nosepiece.

What are the basic units for volume, distance, and mass?

Volume - liters (L), Distance - meters (m), Mass - grams (g).

What is a monomer? Give an example.

A monomer is a basic unit; for example, amino acids are monomers of proteins.

What is the difference between a monomer and a polymer?

A monomer is a single unit, while a polymer is a chain of monomers.

What are the components of proteins?

Amino acids.

What does the enzyme do in a chemical reaction?

Enzymes speed up chemical reactions by lowering activation energy.

Describe dehydration synthesis.

It is a process that builds polymers by removing water molecules.

What is the role of ribosomes in the cell?

They synthesize proteins from amino acids.

What is meant by passive transport?

Movement of substances across a cell membrane without the use of energy.

What does cellular differentiation entail?

It is the process that allows cells with different functions to arise from the same stem cell.