FREE BIOLOGY AND STUDY GAMES ABOUT AP EXAM 1

PDF Download FREE BIOLOGY AND STUDY GAMES ABOUT A&P EXAM 1

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

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-Guarantee passing score -29 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: is explained by chemical and physical principles and is concerned with the function of specific organs or organic systems.

Answer:

Physiology

Question 2: The functions of centrioles include

Answer:

organizing the mitotic spindle in cell division

Question 3: Describe the structure and function of serous membranes.

Answer:

Serosa are very thin, double-layered structures; serous membranes are divided into parietal and visceral membranes with a potential space between the two, serous membranes secrete a watery lubricating fluid.Question 4: Riboswitches are folded RNAs that act as switches to turn protein synthesis on or off in response to

Answer:

changes in the environment.

Question 5: Once solid material is phagocytized and taken into a vacuole describe what happens?

Answer:

Lysosome combines with the vacuole and digests the enclosed solid material Question 6: List and describe the subdivisions (topics) contained within the study of anatomy.

Answer:

Regional- all structures in one part of the body (such as the abdomen or leg) ? Systemic- gross anatomy of the body studied by system ? Surface- study of internal structures as they relate to the overlying skin

Question 7: Describe the generation of a membrane potential?

Answer:

A negative membrane potential is established when the movement of K+ out of the cell equals K+ movement into the cell;

• K+ diffuse down their steep concentration gradient (out of the cell) via leakage channels; Loss of K+

results in a negative char Question 8: The plasma membrane (cell membrane) is:

Answer:

Membrane, composed of phospholipids, cholesterol, and proteins, that encloses cell contents; outer limiting cell membrane Question 9: the specific name for hip/ groin/ thigh/ leg/ forearm/arm/front of elbow/calf/ shoulder blade/ breastbone/ cheek/ chin/ eye/ chest/ armpit/ neck/ etc.

Answer:

coxal Question 10: Describe the process of diffusion? What factors affect the rate of diffusion?

Answer:

Molecules are constantly moving colliding and ricocheting off one another, changing direction with each hit.; Diffusion is the tendency of molecules to spread evenly; Molecule size and temperature

Question 11: Compare and contrast negative and positive feedback mechanisms?

Answer:

Negative feedback mechanisms work to prevent sudden severe changes within the body.

Question 12: If a tRNA had an AGC anticodon, it could attach to a(n) ___ mRNA codon.

Answer:

UCG

Question 13: Describe the process of homeostatic imbalance?

Answer:

It is considered the cause of most diseases.

Question 14: Why is anatomical terminology necessary? ?

Answer:

To prevent misunderstanding, anatomists use universally accepted terms to identify body structures precisely and with a minimum of words.Question 15: A red blood cell placed in pure water would:

Answer:

in a hypertonic solution, the cells take in water by osmosis and become bloated and burst

Question 16: Describe the functions of RNA?

Answer:

Messenger RNA, transfer RNA, and ribosomal RNA plan a role in protein synthesis

Question 17: Can lungs carry out excretory functions? Explain.

Answer:

The lungs release a waste product, carbon dioxide, by exhalation.

Question 18: What is the endomembrane system?

Answer:

An interactive system of organelles whose membranes are physically or functionally connected

Question 19: How is cell resting membrane potential maintained

Answer:

because extracellular levels are high

Question 20: Fingerlike projections that greatly increase the absorbing surface of cells are

Answer:

cillia

Question 21: Describe the function of microtubules

Answer:

molecular transport through the membranes Question 22: The higher we go in the mountains the greater the atmospheric pressure which causes a loss of oxygen. Comment on this statement.

Answer:

Lungs depend on appropriate atmospheric pressure. At high altitudes, where atmospheric pressure is lower and the air is thin, gas exchange may be inadequate to support cellular metabolism

Question 23: Describe the functions of the plasma membrane?

Answer:

Separates intracellular fluids from extracellular fluids; Plays a dynamic role in cellular activity; Glycocalyx is a glycoprotein area abutting the cell that provides highly specific biological markers by which cells recognize one another

Question 24: List and describe the different cell junctions

Answer:

• Tight Junction- impermeable junction that encircles a cell? Desmosome- anchoring junction scattered

along the sides of cells

• Gap Junction- a nexus that allows chemical substances to pass between cells

Question 25: List the functional characteristics of humans or other complex life forms?

Answer:

? Maintaining boundaries ? Movement ? Responsiveness ? Digestion ? Metabolism ? Excretion ? Reproduction ? Growth