🧡 1.6: Introduction to Parasitology: Part 3

Question 1

What parasite cause Malaria?

Answer 1

Plasmodium

Question 2

Malaria Definitive Host

Answer 2

Anopheles Mosquitos

Question 3

Why are anopheles mosquitoes considered definitive host?

Answer 3

They can replicate by cell division in any host but only perform sexual reproduction in mosquitoes

Question 4

Malarial Mosquito Stages (1)

Answer 4

Takes blood meal from infected human and gets parasite

Question 5

Malarial Mosquito Stages (2)

Answer 5

Form a parasite called gametocyte found in blood

Question 6

Malarial Mosquito Stages (3)

Answer 6

Gametocytes complete sexual reproduction resulting in sporozoite

Question 7

Malarial Mosquito Stages (4)

Answer 7

Sporozoite migrate to salivary glands of mosquito

Question 8

Malarial Mosquito Stages (5)

Answer 8

Bite of infected mosquito transfers parasite to person

Question 9

Gametocyte

Answer 9

sex cell

Question 10

Why is malaria limited?

Answer 10

mosquitoes need pools of standing water and temperatures above 70 degrees

Question 11

Malarial Human Stages

Answer 11

Liver and Red Blood Cells

Question 12

Liver Stage

Answer 12

1- Sporozoites in mosquito saliva are infected during bite

2- Then travel and infect liver cells

3- Start replicating causing liver to fill up with parasites and burst putting them into blood

Question 13

Red Blood Cell Stage

Answer 13

• Newly made parasites reinfect red blood cells and produce for parasites
• Some develop into gametes infecting next mosquito