Skip to content
CramShare
PremiumPractice exam

Portage Learning Human Anatomy & Physiology 1 W/Lab BIOL251: Final Exams (+500 Questions); All Latest Versions/ Verified

BIOL100 Biology — exam and revision material · Other

Updated today

Biology exam material, 97 pages. Originally published on StudyMerit.

Pages
97
Academic year
2025/2026
Language
English

What’s included

Preview 3 of 97 pages

See the first 3 pages exactly as they appear in the document.

Read page 1 as text

Portage Learning A&P I Final Exam Latest Questions and Answers (Verified by Expert) ● List two organs contained in the abdominal cavity. CORRECT ANSWER The abdominal cavity contains the stomach, intestines, spleen and liver ● True or False? a. Cellular respiration occurs in the mitochondria. (T or F) b. The purpose of cellular respiration is to produce ATP. (T or F) c. Integral proteins are only found on the inner surface of a cell membrane. (T or F) d. Endocytosis is the process that occurs to eject biomacromolecules from the cell. (T or F) e. Pinocytosis uses a signaling molecule from another cell, binding to the cell membrane to bring about changes within the cell proteins. (T or F) CORRECT ANSWER a. True b. True c. False d. False e. False ● You are observing two cells under the microscope. They are the same type of eukaryotic cell but one appears much larger. Based on appearance alone, which one would you expect to be carrying out respiration at a more active rate, the larger or smaller cell? Explain why. CORRECT ANSWER I believe it is the smaller cell that will breathe at a more active rate because in order for respiration to occur efficiently and more actively the surface area to volume ratio is very critical; also, if the larger surface area is present then the diffusion of gases occur at a higher rate; so, larger cells will have a smaller surface to volume ratio and diffusion that will occur at a slower rate creating a less active respiration; and, on the other hand smaller cells will have a larger surface area to volume ratio and an improved diffusion rate, so the higher rate and more active respiration. The smaller cell. Cells need to remain relatively small because as a cell expands the amount of surface area relative to the volume of the cell decreases. The smaller cell is more active because relative to its volume, its surface area is larger than a bigger cell. With a larger surface area (relative to its volume) this allows the metabolic processes to occur faster. Note: Essay answers must clearly be in your own words.

Read page 2 as text

● Explain what happens to the epiglottis during swallowing. Why? CORRECT ANSWER During swallowing the epiglottis moves inferiorly to close off and prevent aspiration by covering the trachea and creating a passage for liquid, food, or bolus into the esophagus; and, preventing these things from entering into the lungs. ● Air and food pass in which one of the following areas: CORRECT ANSWER Oropharynx ● Label the following five items from the diagram: Label B- ___________ Label D- __________ Label E- __________ Label F- __________ Label G- __________ CORRECT ANSWER B - Oral Cavity

Read page 3 as text

D - Epiglottis E - Glottis F - Trachea G - Esophagus From widest to narrowest, the branches of the bronchial tree are: CORRECT ANSWER Primary bronchi, secondary bronchi, tertiary bronchi, bronchioles Explain why someone who has hypergastrinemia (excessive secretion of gastrin) might develop gastric/stomach ulcers. CORRECT ANSWER Hypergastrinemia leads to excess secretion of the gastrin hormone, which induces excess secretion of hydrochloric acid in the stomach; and, the excess acid then acts as a protective mucousa layer causing disruption that can lead to those ulcers. Gastrin stimulates the secretions of pepsinogens and hydrochloric acid. Excess amounts would lead to erosion of the stomach lining. Look carefully at the diagram below. Label the following 5 organs of the digestive system. To receive credit for the intestines you must label the specific region.

94 more pages after this

You’ve read 3 of 97. Unlock once and it stays in your library — and if the rest doesn’t match what you just read, you get a refund.

Others on this course also opened

$10.00

Yours permanently