"Main Groups of Protists" PPT Courseware

Description

"Main Groups of Protists" PPT Courseware

Part One: Learning Objectives

1. Name the main characteristics of protists and the groups they include

2. State the main characteristics of protozoa and their relationship with humans

3. Outline the main characteristics of algae and their relationship with humans

PPT on the main groups of protists, part 2: Exploration 1 Protozoa

Read the second paragraph on page 36 of the textbook and answer the following questions.

1. The main characteristics of protozoa: the structure is relatively simple, composed of ________, and can __________ from the surrounding environment to complete all ________.

2. Distribution of protozoa: generally live in _______________, a few species ______ humans, animals and plants.

think

1. Are all organisms composed of only one cell protozoa?

2. How do protozoa complete all life activities such as movement, feeding, breathing, digestion, and excretion? Are protozoa animals?

Impact of protozoa on nature

Beneficial: caterpillars such as eyeworms can absorb organic matter in the water and reduce water pollution

The relationship between protozoa and humans

Amoebas cause dysentery in humans;

Plasmodium can cause malaria in people

PPT on the main groups of protists, part three: Exploration 2 Algae

green algae

Contains large amounts of chlorophyll

Chlamydomonas, Ulva, Spirogyra

brown algae

Contains more phycoxanthin

Kelp, sargassum, wakame

red algae

Contains more phycoerythrin

Seaweed, Gelidium

role in ecosystems

1. Provide food and oxygen to other aquatic organisms.

2. They all contain chlorophyll and carotenoids, which can carry out photosynthesis.

3. Has certain medicinal value

4. Detect water pollution levels (red tide)

PPT on the main groups of protists, part 4: main characteristics of algae

1. Single cell or multi-cell;

2. They all contain chlorophyll and carotenoids, which can carry out photosynthesis, and most of them live in water;

3. Some algae also contain phycoxanthin, phycoerythrin or phycocyanin, etc.

4. No differentiation of roots, stems, leaves.

Main characteristics of protists

1. Single cell or multi-cell

2. Simple structure

3. Has a cell nucleus

PPT on the main groups of protists, part 5: in-class test

1. "When the sun rises, the flowers in the river are as red as fire, and when spring comes, the water in the river is as green as blue." When spring comes, the water in the pond turns green. The reason is ( )

A. The green of the trees and grass beside the pond reflects the green color of the pond water.

B. Green algae multiply in the water, turning the pool water green.

C. Environmental pollution, water quality turns green

D. The rich content of aquatic plants and hornwort makes the pond water green.

2. The indicator organism that can monitor whether seawater is polluted is ( )

A.Algae B.Bryophytes

C. Gymnosperms D. Angiosperms

3. Which of the following protozoa can cause dysentery in humans ( )

A.Dinoflagellate B.Noctiluca C.Plasmodium D.Amoeba

4. The common characteristics of Paramecium, Chlamydomonas, and Amoeba are ( )

A. Single cell B. With cilia C. With chloroplasts D. With flagella

5.Algae are protists rather than plants. The reason is ( )

A. Mainly lives in water B. Can perform photosynthesis

C. Simple structure of organisms D. No differentiation of roots, stems and leaves

Keywords: Beijing Normal University Edition Biology PPT courseware for eighth grade volume 2 free download, PPT download of the main groups of protists, .PPT format;

For more information about the PPT courseware "Diversity of Species and Main Groups of Protists", please click the Diversity of Species PPT and Main Groups of Protists PPT tab.

"Main Groups of Protists" PPT:

"Main Groups of Protists" PPT Part One Content: Main Characteristics of Protozoa Single-celled or multi-celled Simple structure with nucleus Thinking Compare the structural diagrams of Paramecium and Chlamydomonas. What are the differences in their structures? How to obtain the organic matter they need...

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Update Time: 2024-11-17

This template belongs to biology courseware Beijing Normal University Edition Eighth Grade Biology Volume 2 industry PPT template

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