NEX Biology: Cell Structure and Function 3

Question 1

Which process do eukaryotic somatic cells use to divide and produce two genetically identical daughter cells?

Accepted Answer

Mitosis

Answer

Meiosis

Answer

Binary fission

Answer

Fertilization

Question 2

How many chromosomes are found in a normal human somatic (body) cell?

Accepted Answer

46

Answer

23

Answer

48

Answer

92

Question 3

Which nitrogenous base is found in RNA but NOT in DNA?

Accepted Answer

Uracil

Answer

Adenine

Answer

Guanine

Answer

Cytosine

Question 4

During which phase of the cell cycle does DNA replication occur?

Accepted Answer

S phase

Answer

G1 phase

Answer

G2 phase

Answer

M phase

Question 5

What is the term for programmed, regulated cell death that removes damaged or unwanted cells without causing inflammation?

Accepted Answer

Apoptosis

Answer

Necrosis

Answer

Mitosis

Answer

Metastasis

Question 6

Which cellular organelle is found in plant cells but NOT in animal cells?

Accepted Answer

Chloroplast

Answer

Mitochondria

Answer

Ribosome

Answer

Golgi apparatus

Question 7

What is the term for the movement of molecules from an area of higher concentration to lower concentration without the use of energy?

Accepted Answer

Passive diffusion

Answer

Active transport

Answer

Facilitated diffusion

Answer

Endocytosis