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Cells (MICROPARA Lab)

Total questions: 23

Worksheet time: 18mins

Name
Class
Date
1.

Spherical-shaped bacteria

(a)  

2.

Rod-shaped bacteria

(a)  

3.

What are the 3 basic shapes of bacteria?

a)

Bacillus

b)

Staphylococci

c)

Spiral

d)

Coccus

4.

Cocci that remain in pairs after dividing are called

(a)  

5.

Cocci that divide in two planes and remain in groups of four are known as

(a)  

6.

Cocci that divide in three planes and remain attached in cubelike groups of eight are called

(a)  

7.

Cocci that divide in multiple planes and form grapelike clusters or broad sheets are called

(a)  

8.

What is the difference between the term bacillus and Bacillus?

a)
'bacillus' refers to all bacteria; 'Bacillus' is a type of virus.
b)
'bacillus' is a genus; 'Bacillus' is a species within it.
c)

'bacillus' is a general term for rod-shaped bacteria; 'Bacillus' is a specific genus of bacteria.

d)
'bacillus' is used for spherical bacteria; 'Bacillus' is for spiral bacteria.
9.

Why don’t bacilli form tetrads or clusters?

a)
Bacilli do not form tetrads or clusters because they divide along a single axis, resulting in linear arrangements.
b)
Bacilli form clusters due to their spherical shape.
c)
Bacilli are always found in pairs, which leads to tetrads.
d)
Bacilli divide in multiple directions, creating clusters.
10.

Bacilli that appear as single rods are called

(a)  

11.

The characteristic of a bacteria to maintain a single shape.

(a)  

12.

(a)   is a viscous (sticky), gelatinous polymer that is external to the cell wall and composed of polysaccharide, polypeptide, or both.

13.

The presence of a capsule can be determined by using

(a)  

14.

glycocalyx that helps cells in a biofilm attach to their target environment and to each other is called an

a)
cell wall
b)
biofilm matrix
c)
slime layer
d)

extracellular polymeric substance

15.

(a)   are long filamentous appendages that propel bacteria.

16.

Bacterias that lack flagella are referred to as

a)

atrichous

b)

peritrichous

c)

monotrichous

d)

lophotrichous

e)

amphitrichous

17.

Bacteria that have flagella distributed over the entire cell are referred to as

a)

amphitrichous

b)

peritrichous

c)

lophotrichous

d)

monotrichous

18.

Bacteria that have flagella at one or both poles or ends of the cell are referred to as

a)

polar

b)
peritrichous
c)
lophotrichous
d)
monotrichous
19.

Bacteria that have flagella a single flagellum at one pole are referred to as

a)
peritrichous
b)
lophotrichous
c)
monotrichous
d)
amphitrichous
20.

Bacteria that have a tuft of flagella coming from one pole are referred to as

a)
amphitrichous
b)
lophotrichous
c)
monotrichous
d)
peritrichous
21.

Bacteria that have flagella at BOTH poles of the cell are referred to as

a)
amphitrichous
b)
lophotrichous
c)
peritrichous
d)
monotrichous
22.

What are the 3 basic parts of a flagellum?

a)

flagellin

b)

Basal body

c)

Filament

d)

Hook

23.

How do the basal bodies of gram-negative and gram-positive bacteria differ?

a)
Basal bodies of gram-negative bacteria are simpler and lack an outer membrane.
b)
Both types of bacteria have identical basal bodies with no structural differences.
c)
Basal bodies of gram-positive bacteria are more complex and associated with an outer membrane.
d)
Basal bodies of gram-negative bacteria are more complex and associated with an outer membrane, whereas those of gram-positive bacteria are simpler and anchored to the peptidoglycan layer.