Q: Which of the following equations correctly represents the calculation for total magnification when using a compound light microscope?

$Total\ Magnification = Objective\ Lens\ Magnification \times Ocular\ Lens\ Magnification$

Question 1

A patient is observed to have a cut on the anterior side of their forearm. Which anatomical term best describes the location of the cut relative to the body?

Accepted Answer

Question 2

Which of the following best describes the function of the plasma membrane in a typical human cell?

Accepted Answer

It controls the selective permeability of substances entering and leaving the cell.

Question 3

A red blood cell is placed in a hypotonic solution. What will most likely happen to the cell, and why?

Accepted Answer

It will swell and possibly burst because water moves into the cell.

Question 4

Which of the following equations correctly represents the calculation for total magnification when using a compound light microscope?

Accepted Answer

$Total\ Magnification = Objective\ Lens\ Magnification 	imes Ocular\ Lens\ Magnification$

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 tissue sample is observed to have multiple layers of flat cells. Which type of epithelial tissue is this most likely to be?

Accepted Answer

Stratified squamous epithelium

Question 7

Which connective tissue type is specialized for energy storage and insulation?

Accepted Answer

Adipose tissue

Question 8

A patient presents with a burn that damages both the epidermis and the entire dermis. Which of the following best describes the type of burn?

Accepted Answer

Third-degree burn

Question 9

Which of the following best explains why osmosis is considered a type of passive transport?

Accepted Answer

It moves water molecules down their concentration gradient without energy input.

Question 10

A histology slide shows tissue with striations and multiple peripheral nuclei. Which muscle type is being observed?

Accepted Answer

Skeletal muscle

Question 11

Which of the following is a function of keratinocytes in the epidermis?

Accepted Answer

Producing keratin to strengthen and waterproof the skin

Question 12

A solution contains $0.9\%$ NaCl, which is isotonic to human cells. If a cell is placed in a $2.0\%$ NaCl solution, what will happen to the cell and why?

Accepted Answer

The cell will shrink because water leaves the cell.

Question 13

Which of the following best describes the function of Meissner's (tactile) corpuscles in the skin?

Accepted Answer

Detecting light touch and texture

Question 14

A student is asked to identify the plane that divides the body into right and left halves. Which anatomical plane is this?

Accepted Answer

Sagittal plane

Question 15

Which of the following best describes the main function of fibrocartilage?

Accepted Answer

Resisting compression and absorbing shock in intervertebral discs

Question 16

A patient has a genetic disorder affecting the production of collagen fibers. Which tissue type is most likely to be directly affected?

Accepted Answer

Connective tissue

Question 17

Which of the following best explains why stratified squamous epithelium is found in areas subject to abrasion, such as the skin and esophagus?

Accepted Answer

It provides a thick, protective barrier against mechanical stress.

Question 18

During cytokinesis in animal cells, which structure is responsible for physically dividing the cytoplasm?

Accepted Answer

Cleavage furrow

Question 19

A patient is unable to sweat due to a malfunction of their sweat glands. Which accessory structure of the skin is most likely affected?

Accepted Answer

Eccrine glands

Question 20

Which of the following best describes the difference between osmosis and simple diffusion?

Accepted Answer

Osmosis is the movement of water across a selectively permeable membrane, while simple diffusion is the movement of solutes down their concentration gradient.

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