Chapter 5

Question 1

Bacteria are very small
most being approximately
________ µm in diameter.

Answer 1

0.5 to 1.0 µm

Question 2

Gives shape to the bacteria

Answer 2

Cell Wall

Question 3

The cell wall is made up of a special protein called?

Answer 3

peptidoglycan

Question 4

Any bacteria with an ovoid,
spherical-shaped bacteria or
usually round shaped bacteria

Answer 4

cocci (plural), coccus

Question 5

Rod-shaped bacteria are termed?

Answer 5

Bacilli (plural), Bacillus

Question 6

are curved-shaped
bacteria which can range from a
gently curved shape to a
corkscrew spiral

Answer 6

Spirilla/Spirillum

Question 7

Bacteria with less than one
complete twist or turn have a
vibrioid (commalike) shape

Answer 7

Curved

Question 8

The bacteria which can be
present in different forms and
shapes are called?

Answer 8

Pleomorphic

Question 9

Pear-shaped cells

Answer 9

Pasteuria

Question 10

Lobed spheres

Answer 10

Sulfolobus

Question 11

Disks arranged like stacks of coins

Answer 11

Caryophanon

Question 12

Rods with helically sculptured surfaces

Answer 12

Seliberia

Question 13

cells divide in one plane and remain attached
predominantly in pairs.

Answer 13

Diplococci

Question 14

cells divide in one plane and remain attached to
form chains.

Answer 14

Streptococci

Question 15

cells divide in two planes and characteristically form
groups of four cells.

Answer 15

Tetrococci

Question 16

cells divide in three planes, in an irregular pattern,
producing “bunches” of cocci.

Answer 16

Staphylococci

Question 17

cells divide in three planes, in a regular pattern,
producing a cuboidal arrangement of cells

Answer 17

Sarcinae

Question 18

Pair of bacilli

Answer 18

diplobacilli

Question 19

This genus are not arranged in patterns as complex as those of the other genus, and most occur in singly or in pairs

Answer 19

Bacilli

Question 20

In some species, such as Bacillus subtilis, form chains?

Answer 20

Streptobacilli

Question 21

form trichomes, which are
similar to chains but have a much larger area of contact between
the adjacent cells.

Answer 21

Beggiatoa and Saprospira species

Question 22

the cells are lined side by side
like matchsticks (palisade arrangement and at angles to one
another).

Answer 22

Corynebacterium diphtheriac