BIO 210 Final Exam Study Guide 2025: Biology Practice Questions & Answers

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FINAL EXAM: BIO210 / BIO 210 (LATEST 2025 UPDATE)

ANATOMY AND PHYSIOLOGY FOR SCIENCE MAJORS I

EXAM | QUESTIONS AND VERIFIED ANSWERS | 100%

CORRECT | GRADE A - GCU

What is the Negative Feedback Loop? .....ANSWER.....output

shuts off the original effect of the stimulus or its intensity. It causes

the variable to change in direction opposite to that of the initial

change to return to its "ideal" state.

If you're too hot what happens in the negative feedback loop?

.....ANSWER.....1. Receptor: temperature sensitive cells in skin and

brain

2. control center: thermoregulatory center in the brain

3. effector: trigger sweat glands (sweating imbalance)

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if you're too cold what happens in the negative feedback loop?

.....ANSWER.....1. Receptor: temperature sensitive cells in skin and

brain

2. Control center: thermoregulatory center in the brain

3. Effector: Trigger shivering of skeletal muscles

what are acid solutions? .....ANSWER.....Are too acidic and

contain more hydrogen, releases hydrogen ions, proton acceptor

what are base solutions? .....ANSWER.....Too basic/alkaline and

contain more hydroxyl, capable of binding with hydrogen,

proton donor

What happens in a hypertonic solution? .....ANSWER.....cell shrinks

what happens in a hypotonic solution? .....ANSWER.....cells swells

or maybe even bursts (lice)

What happens in a isotonic solution? .....ANSWER.....nothing

happens to cell (crenate)

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Simple ___________ squamous epithelial tissue is?

.....ANSWER.....1 layer

Stratified Squamous/flat Columnar/tall epithelial is?

.....ANSWER.....2 layers

What supports epithelial tissue? .....ANSWER.....supported by

connective tissue tight junctions or desmosomes that do not allow

leaking or penetration

What is the function of epithelial tissues?

.....ANSWER.....absorption, secretion, protection, and excretion

How do cells communicate with each other?

.....ANSWER.....through gap junctions (a passageway through

between to adjacent cells)

Where is simple squamous epithelium found?

.....ANSWER.....Kidney glomeruli; air sacs of the lungs; lining of

heart, blood vessels and lymphatic vessels; lining of ventral body

cavity (serosae)

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Where is simple cuboidal epithelium found?

.....ANSWER.....Kidney tubules; ducts and secretory portions of

small glands; ovary surface

Where is simple columnar epithelium (nonciliated) found?

.....ANSWER.....lines most of digestive digestive tract,

gallbladder, and excretory ducts of some glands

Where is simple columnar epithelium (ciliated) found?

.....ANSWER.....lines small bronchi, uterine tubes, and some

regions of the uterus

Where is pseudostratified columnar epithelium (ciliated) found?

.....ANSWER.....lines trachea and most of the upper respiratory

tract

Where is pseudostratified columnar epithelium (nonciliated)

found? .....ANSWER.....found in males sperm carrying ducts and

ducts of large glands