LEC Quiz 2 - Cell Structures

Question 1

A differentiated cell which can resist heat, radiation and chemicals.

Answer 1

endospores

Question 2

Bacterium without flagella can move from one place to another by secreting polycassharides can use

Answer 2

gliding motility

Question 3

Gram positive bacteria are stained purple because of

Answer 3

thick peptidoglycan

Question 4

LPS can be found in what part of the cell?
a. none of the the choices
b. cytoplasm
c. periplasm
d. inner cell membrane

Answer 4

A., LPS can be found in the outer layer of the membrane

Question 5

Integral proteins are found in the:

Answer 5

cell membrane

Question 6

The bonds between amino acids in the peptidoglycan is called:

Answer 6

peptide bond

Question 7

The bonds between polysaccharides in the peptidoglycan is called:

Answer 7

glycosidic bonds

Question 8

The enzyme that breaks glycosidic bonds in 1,3 between NAG is:
a. hydrogen bonds
b. glycosidic bonds
c. none of the choices
d. peptide bond
e. lysozymes

Answer 8

C. none of the choices

Question 9

The space between two cell membrane is gram negative bacteria:

Answer 9

periplasm

Question 10

This aids the DNA to stabilize inside the dormant stage of the cell with a spore.

Answer 10

dipicolonic acid

Question 11

Capsid with nucleic acids is called:

Answer 11

nucleocapsid

Question 12

This structure can be used to transfer genetic material from one bacterium to another.

Answer 12

pili

Question 13

What is not a characteristic of Archaea?
a. may be monolipid layer
b. short flagella
c. presence of paracrystalline surface layer
d. lysozyme breakage

Answer 13

d. lysozyme breakage

Question 14

Which among is not a component of peptidoglycan?
a. amino acids
b. NAM
c. none of the choices
d. NAG

Answer 14

c. none of the choices

Question 15

Which among these cell inclusion contains iron?
a. glycogen
b. polyphosphates
c. magnetosomes
d. PHA

Answer 15

c. magnetosomes

Question 16

Archaea contains lipid in its structure. True or false?

Answer 16

True

Question 17

Gram negative bacteria have two cell membrane (the inner and outside) that causes it to absorb safranin in gram staining. True or false?

Answer 17

True

Question 18

Viruses are cellular organisms. True or false?

Answer 18

False

Question 19

The cell membrane can be used to conserve energy because of its opposing charges inside and outside the membrane. True or False?

Answer 19

True

Question 20

Dipicolonic acid can be found in vegetative cells of endospore-forming organisms. True or false?

Answer 20

False