Question 1

Which of the following is NOT one of the seven essential functions of life as illustrated in the provided materials?

Accepted Answer

Photosynthesis

Question 2

A scientist is using a microscope with an ocular lens of 10X and an objective lens of 40X. What is the total magnification of the specimen?

Accepted Answer

$$10 	imes 40 = 400$$

Question 3

Which organelle is responsible for modifying, sorting, and packaging proteins and lipids for secretion or delivery to other organelles?

Accepted Answer

Golgi apparatus

Question 4

A cell is observed to lack ribosomes. Which process would be most directly affected?

Accepted Answer

Protein synthesis

Question 5

Which of the following statements best describes the main difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells have membrane-bound organelles, while prokaryotic cells do not.

Question 6

Which type of microscopy would be most appropriate for visualizing the 3-D surface structure of a cell?

Accepted Answer

Scanning electron microscopy (SEM)

Question 7

If a eukaryotic cell lacked functional lysosomes, which process would be most impaired?

Accepted Answer

Digestion of macromolecules

Question 8

Which of the following best explains why antibiotics are generally effective against bacteria but not viruses?

Accepted Answer

Bacteria are prokaryotic cells with unique cell structures targeted by antibiotics, while viruses lack cells.

Question 9

A plant cell is observed to have a large central vacuole. What is the primary function of this organelle?

Accepted Answer

Storage of ions and water, contributing to cell growth

Question 10

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

Accepted Answer

Smooth ER – lipid synthesis and detoxification

Question 11

A researcher wants to separate mitochondria from other organelles in a cell sample. Which technique should they use?

Accepted Answer

Cell fractionation by differential centrifugation

Question 12

Which of the following is a function of the nuclear pores in a eukaryotic cell?

Accepted Answer

Regulating the entry and exit of molecules between the nucleus and cytoplasm

Question 13

Which of the following best describes the structure of the nuclear envelope?

Accepted Answer

A double membrane, each layer being a phospholipid bilayer

Question 14

Which of the following is NOT a component of the endomembrane system?

Accepted Answer

Mitochondria

Question 15

A mutation causes a cell to lack nuclear lamina proteins. Which of the following is the most likely consequence?

Accepted Answer

The nucleus would lose its structural shape

Question 16

Which of the following best explains why eukaryotic cells can carry out multiple incompatible chemical reactions simultaneously?

Accepted Answer

They have internal membranes that create specialized organelle compartments

Question 17

Which of the following is a real-world application of cell theory?

Accepted Answer

Understanding why antibiotics target bacteria but not human cells

Question 18

Which of the following statements about chromatin is correct?

Accepted Answer

Chromatin is DNA bound to proteins, which condenses into chromosomes during cell division

Question 19

Which of the following best describes the role of ribosomes in a cell?

Accepted Answer

They synthesize proteins using instructions from DNA

Question 20

A protist living in freshwater is observed to have contractile vacuoles. What is the main function of these vacuoles?

Accepted Answer

Pumping out excess water to maintain osmotic balance

Cellular Organization and Microscopy: Structure and Function of Cells

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