Q: Which of the following is a correct equation for calculating magnification?

$$\text{Magnification} = \frac{\text{Image size}}{\text{Actual size}}$$

Question 1

Which of the following best describes the function of the Golgi apparatus in a eukaryotic cell?

Accepted Answer

It modifies, packages, and transports proteins and lipids.

Question 2

A scientist observes a cell under an electron microscope and notes the presence of a cell wall made of peptidoglycan, circular DNA, and 70S ribosomes. Which type of cell is being observed?

Accepted Answer

Prokaryotic cell

Question 3

Which organelle is responsible for the production of ATP in eukaryotic cells, and what is the main process occurring there?

Accepted Answer

Mitochondrion; aerobic respiration

Question 4

In the process of protein synthesis and secretion, which sequence of organelles is correct?

Accepted Answer

Nucleus → Ribosome → Rough ER → Golgi apparatus → Cell surface membrane

Question 5

Which of the following is NOT a structural difference between prokaryotic and eukaryotic cells?

Accepted Answer

Cell size

Question 6

A light microscope has an eyepiece lens with a magnification of $$	imes 10$$ and an objective lens with a magnification of $$	imes 40. $$What is the total magnification?

Accepted Answer

$$	imes 400$$

Question 7

If an image of a cell is 30 mm in diameter and the magnification is $$	imes 3000$$, what is the actual diameter of the cell in micrometers ($$\mum$$)?

Accepted Answer

$$10 \mu m$$

Question 8

Which organelle is visible under a light microscope and is responsible for the production of ribosomes?

Accepted Answer

Nucleolus

Question 9

Which of the following stains would you use to visualize starch-containing material in plant cells?

Accepted Answer

Iodine

Question 10

Which structure is found in plant cells but NOT in animal cells?

Accepted Answer

Cellulose cell wall

Question 11

What is the main function of lysosomes in animal cells?

Accepted Answer

Breakdown of waste materials and worn-out organelles

Question 12

Which microscope would you use to view the internal structure of mitochondria at high resolution?

Accepted Answer

Transmission electron microscope (TEM)

Question 13

Which of the following is a correct equation for calculating magnification?

Accepted Answer

$$	ext{Magnification} = \frac{	ext{Image size}}{	ext{Actual size}}$$

Question 14

Which organelle is involved in the production, processing, and storage of lipids, carbohydrates, and steroids?

Accepted Answer

Smooth endoplasmic reticulum

Question 15

Which of the following is a function of microtubules in animal cells?

Accepted Answer

Support cell shape and move substances inside the cell

Question 16

Which of the following is a correct description of a tissue?

Accepted Answer

A group of cells of similar structure working together to perform a particular function

Question 17

Which of the following statements about ribosomes is correct?

Accepted Answer

Ribosomes are the site of translation.

Question 18

Which structure in prokaryotic cells allows for attachment to other cells or surfaces and is involved in sexual reproduction?

Accepted Answer

Pilus

Question 19

Which of the following is a reason why electron microscopy requires specimens to be dead?

Accepted Answer

The electron beam damages living tissue.

Question 20

A student is preparing a microscope slide of plant tissue. Why must the tissue sample be thin?

Accepted Answer

To allow light to pass through for clear observation

Cell Structure and Organisation: Study Notes for College Biology

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