Exam 2 Chapter 5/6

Question 1

Define schizogony

Answer 1

Nucleus of a cell divides multiple times before the cell divides into many smaller cells

Question 2

Define conjugation

Answer 2

Exchange of genetic material by joining to exchange DNA.

Question 3

Protist conjugation is a form of ______ ______ _____

Answer 3

Eukaryotic sexual reproduction

Question 4

Define binary fission

Answer 4

A type of asexual reproduction, separation of parent cell into two new daughter cells

Question 5

Define budding

Answer 5

A type of asexual reproduction in which a new organism develops from an outgrowth or bud

Question 6

What are the three clinically significant subgroups of unicellular eukaryotes

Answer 6

Amoebozoa, excavata, chromalveolata

Question 7

Pair the infection/disease with the organism/group - Giardia

Answer 7

Diarrheal illness (excavata)

Question 8

Pair the infection/disease with the organism/group - Trichomonas

Answer 8

STD (trichomoniasis). (Excavata)

Question 9

Pair the infection/disease with the organism/group - Trypanosoma

Answer 9

African trypanosomiasis, spread by insect bites. (Excavata)

Question 10

Pair the infection/disease with the organism/group - Plasmodium

Answer 10

Eukaryotic organism transmitted through mosquito bites (Chromalveolata)

Question 11

Pair the infection/disease with the organism/group - Toxoplasma

Answer 11

Toxoplasmosis, transmitted from cat feces and unwashed fruit/veg

Question 12

Pair the infection/disease with the organism/group - Entamoeba

Answer 12

Includes commensal or parasitic species including E. histolytica which is the primary cause of amoebic dysentery.

Question 13

Pair the infection/disease with the organism/group - Naegleria

Answer 13

Brain eating amoeba. Found in warm fresh water.

Question 14

Pair the infection/disease with the organism/group - Nematoda

Answer 14

Ascaris lumbricoides.

Question 15

Most multicellular fungal bodies are made up of filaments called _____

Answer 15

Hyphae.

Question 16

Hyphae with walls between the cells are called ____ ____

Answer 16

Septate hyphae.

Question 17

Define asomycetes

Answer 17

Fungi that are used for food, food spoilage and human pathogens

Question 18

Define basidiomycetes

Answer 18

Fungi that have basidia that produce basidiospores within fruiting bodies. They are important as decomposers and as food.

Question 19

Define zygomycetes

Answer 19

Important for food science and crop pathogens

Question 20

Identify the group with the infection/disease/medical use it is known for - Candida

Answer 20

Vaginal/yeast infections

Question 21

Identify the group with the infection/disease/medical use it is known for - Histoplasma

Answer 21

Chronic lung disease (histoplasmosis)

Question 22

Identify the group with the infection/disease/medical use it is known for - Aspergillus

Answer 22

Produces aflatoxin

Question 23

Identify the group with the infection/disease/medical use it is known for - Saccharomyces

Answer 23

Used for brewing beer and bread

Question 24

Identify the group with the infection/disease/medical use it is known for - Cryptococcus

Answer 24

Cause lung infections when inhaled by inviduals with a weak immune system

Question 25

Identify the group with the infection/disease/medical use it is known for - Amanita

Answer 25

Toxic mushrooms

Question 26

Identify the group with the infection/disease/medical use it is known for - Dermatophytes

Answer 26

Skin infections

Question 27

Define mechanical transmission

Answer 27

Arthropod carries a viral pathogen on the outside of its body and transmit it to a new host by physical contact

Question 28

Define biological transmission

Answer 28

Arthropod carries the viral pathogen inside its body and transmit it to the new host through biting.

Question 29

Define generalized transduction

Answer 29

Occurs when a random piece of bacterial chromosomal DNA is transferred by the phage during lytic cycle

Question 30

Define specialized transduction

Answer 30

At the end of the lysogenic cycle, the prophage is excised and the bacteriophage enters the lytic cycle.

Question 31

Define a latent infection

Answer 31

Remains hidden or dormant inside the cell

Question 32

Define a chronic infection

Answer 32

Symptoms that are recurrent or persistent over a long time

Question 33

Define the lytic cycle

Answer 33

The phage replicates and lyses the host cell

Question 34

Define the lysogenic cycle

Answer 34

Phage DNA is incorporated into the host genome where it is passed onto subsequent generations