Q: If a microscope has an ocular lens of 10x and an objective lens of 40x, what is the total magnification?

Total magnification = $$10 \times 40 = 400$$

Q: A student is using a microscope and notices that the field of view decreases as magnification increases. Which formula best describes the relationship between field of view and magnification?

$$\text{Field of View} \propto \frac{1}{\text{Magnification}}$$

Question 1

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

Accepted Answer

Cell, tissue, organ, organ system

Question 2

A student is preparing a wet mount slide of cheek cells. After staining, which cellular structures should be visible under the microscope at 400x total magnification?

Accepted Answer

Nucleus and cytoplasm

Question 3

If a microscope has an ocular lens of 10x and an objective lens of 40x, what is the total magnification?

Accepted Answer

Total magnification = $$10 	imes 40 = 400$$

Question 4

Which organelle is primarily responsible for energy production in the cell?

Accepted Answer

Mitochondrion

Question 5

During mitosis, which phase is characterized by the alignment of chromosomes along the center of the cell?

Accepted Answer

Metaphase

Question 6

A microscope is described as 'parfocal.' What does this mean?

Accepted Answer

Once focused with one objective, the image remains nearly in focus when switching to another objective.

Question 7

Which of the following best describes the function of the Golgi apparatus?

Accepted Answer

Modifies, sorts, and packages proteins for secretion

Question 8

If the resolving power of a microscope is $$0.2 \ \mu m$$, what does this indicate?

Accepted Answer

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

Question 9

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

Accepted Answer

Circulatory system

Question 10

A student observes a slide and notes the presence of cilia on the cells. Which organ system is most likely being observed?

Accepted Answer

Respiratory system

Question 11

Which of the following is NOT a function of the plasma membrane?

Accepted Answer

Synthesizing proteins

Question 12

A patient has a disorder affecting lysosomes. Which cellular process is most likely impaired?

Accepted Answer

Breakdown of cellular waste and debris

Question 13

Which microscope part adjusts the amount of light passing through the specimen?

Accepted Answer

Iris diaphragm

Question 14

If a cell undergoes mitosis but fails to complete cytokinesis, what is the result?

Accepted Answer

A single cell with two nuclei

Question 15

Which of the following best describes the function of ribosomes?

Accepted Answer

Site of protein synthesis

Question 16

A student is using a microscope and notices that the field of view decreases as magnification increases. Which formula best describes the relationship between field of view and magnification?

Accepted Answer

$$	ext{Field of View} \propto \frac{1}{	ext{Magnification}}$$

Question 17

Which organ system is primarily responsible for maintaining homeostasis through hormone secretion?

Accepted Answer

Endocrine system

Question 18

A cell is observed to have an extensive network of rough endoplasmic reticulum. What is the most likely function of this cell?

Accepted Answer

Production and secretion of proteins

Question 19

Which of the following best explains why safety goggles, aprons, and gloves are required during lab exercises?

Accepted Answer

To protect against exposure to hazardous chemicals and biological specimens

Question 20

A student is asked to identify the function of the nucleolus within the cell. Which answer is correct?

Accepted Answer

Site of ribosome assembly

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

Study Guide - Practice Questions

Study Guide - Flashcards