Question 1

Which of the following statements correctly distinguishes prokaryotic cells from eukaryotic cells?

Accepted Answer

Prokaryotic cells lack a nucleus and membrane-bound organelles.

Question 2

A scientist isolates a cell that is 2 μm in size, lacks a nucleus, and has a cell wall. Which type of cell is this most likely to be?

Accepted Answer

Bacterium

Question 3

Which organelle packages the genetic/hereditary material in eukaryotic cells but not in prokaryotic cells?

Accepted Answer

Nucleus

Question 4

What is the shape of DNA in prokaryotic cells, and where is it found?

Accepted Answer

Circular; in the nucleoid region

Question 5

Which of the following is NOT a feature shared by all types of cells?

Accepted Answer

Contains a nucleus that stores the genetic material

Question 6

Eukaryotic cells divide by which process?

Accepted Answer

Mitosis

Question 7

Which of the following is a primary difference between prokaryotic and eukaryotic cells?

Accepted Answer

a and b

Question 8

Which bacterial cell morphology is described as circular-shaped cells?

Accepted Answer

Coccus

Question 9

Streptococcus bacteria are best described as:

Accepted Answer

Chain of spherical cells

Question 10

Which arrangement describes a cluster of many cocci cells in an irregular pattern?

Accepted Answer

Staphylococci

Question 11

Bacilli bacteria typically divide in how many planes?

Accepted Answer

$$1$$

Question 12

Which of the following is true about the ribosomes in prokaryotic and eukaryotic cells?

Accepted Answer

Prokaryotes have $$70S$$ ribosomes and eukaryotes have $$80S$$ ribosomes.

Question 13

Which of the following cell types contains linear DNA inside a nucleus?

Accepted Answer

Eukaryotic cell

Question 14

Which cell morphology is described as corkscrew-shaped?

Accepted Answer

Spirillum

Question 15

Which of the following statements about cell morphology and arrangement is correct?

Accepted Answer

Cell morphology refers to the overall shape of individual cells.

Question 16

Which bacterial cell arrangement is described as a short rod or oval that can appear as diplococci?

Accepted Answer

Coccobacilli

Question 17

Which of the following is a feature of eukaryotic cells but NOT prokaryotic cells?

Accepted Answer

Presence of membrane-bound organelles

Question 18

Which statement about the genetic material in prokaryotic cells is correct?

Accepted Answer

It is circular and found in the nucleoid region.

Question 19

Which of the following is NOT a domain of life classified as prokaryotes?

Accepted Answer

Eukarya

Question 20

Which cell type is most abundant and diverse on Earth?

Accepted Answer

Bacterial cells

Ch. 4

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