Biology - Chapter 11A - The Kingdom Protista

28 terms by ldryer Plus

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For Biology students at Christian Life School

Motile

Able to move from place to place.

Phylum Sarcodina Characteristics

*Characterized by a lack of a standard body shape.
*May form extensions that function as false feet or pseudopods.
*They live in a variety of habitats including fresh water, the sea floor, and the human mouth and intestines.

Be able to label these parts of an amoeba

Pseudopod
Ectoplasm
Endoplasm
Nucleus
Contractile vacuole
Food vacuole

Amoeba proteus

The most common amoeba.

Ectoplasm

In an amoeba, it is the cytoplasm found just inside the plasma membrane.

Endoplasm

This type of cytoplasm is found all over the interior of an amoeba.

Contractile vacuole

Collects and eliminates water in most protists.

Ameboid movement

When all of the endoplasm from a protist moves to one area of the plasma membrane forming a pseudopod, and the rest of the organism then flows along with it.

Nucleus

This is the control center for metabolic functions in an amoeba.

Taxes

This is what protists use to respond to their environment.

Phylum Ciliophora Characteristics

*All organisms in this phylum contain cilia.
*The organisms in this phylum live in stagnant lakes & ponds.

Paramecium

The most common example of a ciliate.

Be able to label these parts of a paramecium

Contractile vacuole
Food vacuole
Gullet
Oral groove
Macronucleus
Micronucleus
Cilia
Trichocysts
Anal pore
Pellice

Pellicle

Firm, flexible covering of a paramecium that helps it maintain its slipper shape.

Macronucleus

In a paramecium, this contains many copies of the genetic information and helps in day to day activities.

Micronucleus

In a paramecium, this helps to exchange genetic information during conjugation.

Food pathway for a paramecium

Cilia that line the oral groove sweep food into a short tube called the gullet. At the end of the gullet a large bulge forms forming a food vacuole.

2 ways paramecium reproduce

Binary fission and conjugation

Trichocysts

Stiff filaments that are discharged in response to certain stimuli in a paramecium.

Binary fission

When the micronucleus divides by mitosis, and the macronucleus enlarges and divides in half. The protist elongates and a second gullet forms. A furrow forms across the middle of the protist and it divides in half.

Conjugation

When two protists attach to each other by their oral grooves, exchange nuclear material, and then divides into 4 organisms.

Phylum Sporozoa Characteristics

*As adults, organisms in this phylum do not have any structures for movement.
*This phylum forms spores at some point during their life cycle.

Spore

A cell with a hard, protective covering that forms during times of extreme or harsh conditions.

Plasmodium

The most commonly known Sporozoan.

How does malaria get passed on from person to person.

The mosquito "bites" a person that has the plasmodium sporozoan in their bloodstream. The plasmodium cells go to the mosquito's salivary glands. Before feeding on the blood of another human, the infected mosquito injects some of its saliva, containing the Plasmodium parasite, into the puncture wound of this new victim. The Plasmodium goes to the human liver cells, reproduces quickly, and then enters the bloodstream causing those cells to burst and fully infect the human.

Malaria

The name of the illness that the Plasmodium causes.

Phylum Zoomastigina

This phylum uses a flagella to move around.

Trypanosoma

The zooflagellate that causes African sleeping sickness.

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