PBS EOC

When infectious pathogens enters the body, white blood cells (B-cells), produce THESE molecules to attack or impair the pathogens:

• Antigens

• Antibodies

• Toxins

• Vaccines

The purple bacteria in this image are

• cocci.

• bacilli.

• spirilla.

The bacteria in this image are

• cocci.

• bacilli.

• spirilla.

The bacteria in this image are

• Gram positive.

• Gram negative.

What type of blood is shown here?

• A positive

• A negative

• B positive

• B negative

The hamstrings are anterior or posterior?

• anterior

• posterior

The bicep is anterior or posterior?

• anterior

• posterior

What is the primary function of the plasma membrane in cells?

• To store genetic information

• To produce energy

• To regulate the movement of substances in and out of the cell

• To synthesize proteins

Tags

NGSS.MS-LS1-2

Which of the following is a characteristic of enzymes?

• They are consumed in the reactions they catalyze

• They increase the activation energy of reactions

• They are specific to substrates

• They are made of nucleic acids

In a controlled experiment, which variable is manipulated by the researcher?

• Dependent variable

• Independent variable

• Controlled variable

• Extraneous variable