C5

Question 1

Algae produce energy by

Answer 1

photosynthesis.

Question 2

are an important source of food, iodine, fertilizers, emulsifiers, and stabilizers and gelling agents for jams and culture media.

Answer 2

Algae

Question 3

are non-photosynthetic, eukaryotic organisms.

Answer 3

Protozoa

Question 3

one genus of algae, is a very rare cause
of human infections

Answer 3

Prototheca

Question 4

Protozoa do not have cell walls, but some possess a thickened cell membrane called, which serves
the same purpose – protection.

Answer 4

CYST

Question 5

A typical protozoan life cycle has two stages

Answer 5

trophozoite and a cyst

Question 6

is the motile, feeding, dividing stage

Answer 6

trophozoite

Question 7

is the nonmotile, dormant, survival stage

Answer 7

cyst

Question 8

The study of fungi is called

Answer 8

mycology

Question 9

scientists who
study fungi are called

Answer 9

mycologists

Question 10

Fungal cell walls contain a polysaccharide called

Answer 10

Chitin

Question 11

Some fungi are unicellular, while others grow as filaments called

Answer 11

hyphae

Question 12

Hyphae intertwine to form a mass called a

Answer 12

mycelium

Question 13

There are two general categories of spores

Answer 13

*Sexual spores
*Asexual spores (also called conidia)

Question 14

Individual yeast cells, also referred to as

• can be observed only using a microscope

Answer 14

blastospores or blastoconidia

Question 15

Yeasts usually reproduce by

Answer 15

budding

Question 16

A string of elongated buds is known as a

Answer 16

pseudohypha
(not really a hypha)

Question 17

are often seen in water and soil and growing on food.

Answer 17

Moulds

Question 18

Moulds produce cytoplasmic filaments called

Answer 18

hyphae

Question 19

extend above the surface of
whatever the mould is growing on

Answer 19

Aerial hyphae

Question 20

hyphae grow beneath the surface

Answer 20

Vegetative

Question 21

are fungal infections of the
outermost areas of the human bodyhair, nails, and
epidermis.

Answer 21

Superficial mycoses

Question 21

are fungal infections of the living
layer of the skin, the dermis.

Answer 21

Cutaneous mycoses

Question 22

are fungal infections of the
dermis and underlying tissues (e.g., Madura foot).

Answer 22

Subcutaneous mycoses

Question 23

are fungal infections of the internal organs of the body.

Answer 23

Systemic mycoses

Question 24

When grown in vitro at body temperature dimorphic fungi grow as yeasts and produce yeast colonies.

Answer 24

(37C)

Question 25

When grown in vitro at room temperature, dimorphic fungi exist as moulds, producing mould colonies.

Answer 25

(25C)

Question 26

Lichens and slime moulds are classified as

Answer 26

protists