Protists

Question 1

Are protists prokaryotic or eukaryotic?

Answer 1

They are eukaryotic in domain Eukarya

Question 2

Protists

Answer 2

• Eukaryotic
• Contain a nucleus and other membrane bound organelles
• Both multicellular and unicellular, but mostly unicellular
• Include hetreotrophs and heterotrophs
• Vary in function and structure more than any other other eukaryotic organism

Question 3

Euglena

Answer 3

• Protist
• Unicellular
• Live in fresh water
• Move by flagella
• If deprived of light it will lose it’s chloroplasts and become a heterotroph
• The chlorophyll pigments are similar to algae and plants

Question 4

Dinoflagellates

Answer 4

• Protist
• Unicellular
• Most are single celled photosynthetic members of marine plankton.
• Depending on the pigment color, they can be yellow, brown, green, or red.
• Certain blooms can be toxic to marine life
• Certain species cause a red tide to occur where we see an enormous “bloom” or growth rate.

Question 5

Diatoms

Answer 5

• Protists
• Unicellular algae with a glass-like appearance consisting of SiO2 wall structure
• Over 5000 species exist

Question 6

Algae

Answer 6

• protist
• can be unicellular, multi-cellular, or colonial
• golden (chrysophyta)
• brown (kelp) (phaeophyte)
• green (chlorophyta)
• red (rhodophyta)

For Dat remember phyta

Question 7

What is the difference between an colonial organism, unicellular organism, and multicellular organism

Answer 7

• unicellular: Only one cell
• multicellular: Made up of multiple cells. Cells can’t survive on their own.
• colonial: Made up of multiple cells in a biofilm. Cells can separate and survive on their own.

Question 8

Ameoba

Answer 8

• protist
• unicellular
• move by pseudopodia
• fresh water
• Most feed on bacteria, algae, and even some protozoans

Question 9

Plasmodium

Answer 9

• protists
• unicellular
• Causes malaria
• A type of sporazoan

Question 10

What is a sporazoan

Answer 10

Protist

A strictly parasitic protozoan that often have a sexual lifecycle involving multiple hosts.

Ex: Malaria being passed from mosquitoes to humans

Question 11

Paramecium

Answer 11

• Protists
• Unicellular
• Contains a contractile vacuole that is used as a water pump to expel water for speed
• Have cilia for swimming
• Freshwater and marine habitats
• They are built for speed

Question 12

Slime Molds

Answer 12

• Protists
• unicellular
• Free living and quite predatory
• They creep around like animals and engulf food, especially bacteria.

Question 13

Why are heterozygotes of Sickle cell anemia able to survive malaria better?

Answer 13

• The sickle cells have a much shorter life span than normal red blood cells.
• The plasmodium spends most of it’s life in red blood cells, but isn’t able to complete its lifecycle in a sickle cell

Question 14

Plastid

Answer 14

A specific family of related organelles that includes chloroplasts and chromoplasts. Anything ending in plast is a plastid

Question 15

Protist mitochondrial genomes

Answer 15

Protists contain the most diverse mitochondrial genomes, having five different types

Question 16

Are hydra protists?

Answer 16

NO! They are in the animal kingdom. They are small multicellular aquatic animals that often get confused for protists