Question 1

Which organelle is responsible for producing ATP through cellular respiration in eukaryotic cells?

Accepted Answer

Mitochondria

Question 2

A scientist observes a cell with a cell wall, chloroplasts, and a large central vacuole. Which type of cell is she most likely observing?

Accepted Answer

Plant cell

Question 3

Which of the following best describes the function of ribosomes in eukaryotic cells?

Accepted Answer

They build proteins using instructions encoded in DNA.

Question 4

During photosynthesis, which organelle uses sunlight, water, and carbon dioxide to produce sugars and oxygen?

Accepted Answer

Chloroplast

Question 5

Which structure regulates the movement of substances into and out of the cell?

Accepted Answer

Plasma membrane

Question 6

A mutation disrupts the function of the Golgi apparatus in a cell. Which process would be most directly affected?

Accepted Answer

Protein modification and distribution

Question 7

Which organelle contains enzymes that can dissolve large food molecules, old cellular components, or invasive organisms such as bacteria?

Accepted Answer

Lysosome

Question 8

If a cell's cytoskeleton is disrupted, which of the following cellular functions would be most directly impaired?

Accepted Answer

Cell shape and movement

Question 9

Which of the following is found in both plant and animal cells, but NOT in prokaryotic cells?

Accepted Answer

Nucleus

Question 10

A cell is observed to have a large number of smooth endoplasmic reticulum. Which function is this cell likely specialized for?

Accepted Answer

Lipid production and detoxification

Question 11

Which organelle is the site of DNA storage and is surrounded by a double membrane in eukaryotic cells?

Accepted Answer

Nucleus

Question 12

Which of the following structures is responsible for the breakdown of fatty acids and detoxification of harmful substances?

Accepted Answer

Peroxisome

Question 13

A cell is unable to produce ribosomal RNA. Which organelle is most likely malfunctioning?

Accepted Answer

Nucleolus

Question 14

Which of the following is a function of the vacuole in plant cells?

Accepted Answer

Storage of water, nutrients, and toxins

Question 15

Which structure is external to the plasma membrane in plant cells and helps maintain cell shape?

Accepted Answer

Cell wall

Question 16

Which organelle is responsible for the modification, sorting, and packaging of proteins for secretion or use within the cell?

Accepted Answer

Golgi apparatus

Question 17

Which appendage is long and used for cell movement by whipping back and forth?

Accepted Answer

Flagella

Question 18

During cell division, which structure divides the onset of anaphase by joining sister chromatids and attaching spindle microtubules?

Accepted Answer

Centromere

Question 19

Which of the following is a network of protein fibers that provides mechanical support, anchorage, and reinforcement to a cell?

Accepted Answer

Cytoskeleton

Question 20

A cell is observed to have both cilia and flagella. What is the primary function of these structures?

Accepted Answer

Cell movement

Eukaryotic Cells: Structure, Organelles, and Functions

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