Exam 2 - BIOL 107

The surface of the skin is composed of _________ ________ epithelium:

• simple columnar
• stratified columnar
• stratified squamous
• simple squamous

What is the outer layer of the skin called?

• epidermis
• dermis
• subcutaneous
• cuboidal epithelium

Which of the following are cell fragments that help initiate blood clotting?

• erythrocytes
• leukocytes
• platelets
• osteocytes

Melanin is a substance responsible for

• cell growth
• muscle contraction
• nerve impulses
• skin pigmentation and helping to protect from harmful light/UV rays

Tags

NGSS.MS-LS4-4

What is the correct sequence in which a drop of deoxygenated blood returning from the body encounters the heart chambers?

• left atrium → left ventricle → right atrium → right ventricle
• left ventricle → left atrium → right ventricle → right atrium
• right atrium → left atrium → left ventricle → right ventricle
• right atrium → left ventricle → left atrium → right ventricle
• right atrium → right ventricle → left atrium → left ventricle

Which blood vessel has the highest concentration of carbon dioxide and the least amount of oxygen:

• superior and inferior vena cava
• arterioles
• aorta
• carotid artery

Aged red blood cells are destroyed in the:

• red bone marrow
• lungs
• lymph nodes
• spleen and liver

Neutrophils and lymphocytes are types of:

• platelets
• red blood cells
• white blood cells
• plasma cells

Tags

NGSS.MS-LS1-3

Which type of cell is produced in the bone marrow and will produce antibodies?

• B cell
• T cell
• plasma cell
• memory cell

The primary target of the HIV virus is:

• helper T cells
• suppressor T cells
• cytotoxic T cells
• memory T cells