$$\text{Total Magnification} = \text{Ocular Lens Magnification} \times \text{Objective Lens Magnification}$$

Question 1

Which of the following correctly lists the levels of organization in the human body from simplest to most complex?

Accepted Answer

Cell, tissue, organ, organ system

Question 2

A student is using a compound light microscope with an ocular lens of 10x and an objective lens of 40x. What is the total magnification being used?

Accepted Answer

$$10 	imes 40 = 400$$

Question 3

Which organelle is primarily responsible for producing ATP, the energy currency of the cell?

Accepted Answer

Mitochondrion

Question 4

During the preparation of a wet mount slide of cheek cells, which step is essential to ensure the cells are visible under the microscope?

Accepted Answer

Staining the cells with methylene blue

Question 5

Which of the following best describes the term 'parfocal' as it relates to microscopy?

Accepted Answer

The ability to maintain focus when switching between objective lenses

Question 6

A scientist observes that the resolving power of a microscope is $$0.2\ \mu m. $$What does this mean?

Accepted Answer

The microscope can distinguish two points that are at least $$0.2\ \mu m$$ apart

Question 7

Which organ system is primarily responsible for transporting nutrients, gases, and wastes throughout the body?

Accepted Answer

Circulatory system

Question 8

If a cell is observed in the metaphase stage of mitosis, which of the following best describes what is occurring?

Accepted Answer

Chromosomes are aligned at the cell's equator

Question 9

Which of the following is NOT a function of the Golgi apparatus?

Accepted Answer

Synthesizing ATP

Question 10

A student is focusing on a specimen using the high-power objective lens. Which adjustment knob should they use to avoid damaging the slide?

Accepted Answer

Fine adjustment knob

Question 11

Which of the following best explains why gloves and goggles are required during laboratory exercises involving biological specimens?

Accepted Answer

To protect students from exposure to potentially harmful chemicals or biological agents

Question 12

Which of the following correctly matches the organelle with its function?

Accepted Answer

Ribosome – protein synthesis

Question 13

A patient has a genetic disorder affecting the lysosomes in their cells. Which cellular process is most likely to be impaired?

Accepted Answer

Digestion of cellular waste

Question 14

Which of the following is the correct formula for calculating total magnification in a compound microscope?

Accepted Answer

$$	ext{Total Magnification} = 	ext{Ocular Lens Magnification} 	imes 	ext{Objective Lens Magnification}$$

Question 15

Which organ system is responsible for protecting the body from environmental hazards and regulating body temperature?

Accepted Answer

Integumentary system

Question 16

A cell is observed with a large number of rough endoplasmic reticulum. What is the most likely function of this cell?

Accepted Answer

Secretion of proteins

Question 17

Which of the following best describes the function of the cytoskeleton?

Accepted Answer

Provides structural support and facilitates cell movement

Question 18

A student observes a cell under the microscope and identifies a prominent nucleolus. What is the primary function of the nucleolus?

Accepted Answer

Ribosome production

Question 19

Which of the following scenarios best illustrates the application of the concept of 'working distance' in microscopy?

Accepted Answer

Measuring the distance between the objective lens and the specimen to avoid crashing the lens into the slide

Question 20

Which phase of mitosis is characterized by the separation of sister chromatids and their movement toward opposite poles of the cell?

Accepted Answer

Anaphase

Week 2 Study Guide: Introduction to Anatomy & Physiology I Lab

Study Guide - Practice Questions