Algae

1. What classification does cyanobacteria fall under?

Eukaryotes

Protists

Fungi

Prokaryoyotes
Pigments: Chlorophyll a, Phycobilins (red and Blue)
Photosynthesize, produce O2
May fix N2 in heterocysts
Recombination but no mitosis, Meiosis
No flagellae but some move
Ecology
Ponds, oceans, hotwater

Cyanobacteria lack a true membrane-bound nucleus and other membrane-bound organelles, placing them in the category of prokaryotes.

Explanation

Cyanobacteria lack a true membrane-bound nucleus and other membrane-bound organelles, placing them in the category of prokaryotes.

2. What type of organisms are Prochlorophytes?

Protists

Animals

Fungi

Prokaryotes
Pigments: chlorophyll a,b, No phycobilins(red and blue)

Prochlorophytes are a group of prokaryotic organisms that contain pigments chlorophyll a and b, but no phycobilins (red and blue pigments). This places them in the kingdom of prokaryotes, not protists, fungi, or animals.

Explanation

Prochlorophytes are a group of prokaryotic organisms that contain pigments chlorophyll a and b, but no phycobilins (red and blue pigments). This places them in the kingdom of prokaryotes, not protists, fungi, or animals.

3. What are the different forms of Chlorophyta (green Algae) and their characteristics?

Chlorophyta cell walls are made of chitin instead of cellulose

Only unicellular forms exist with no variation

Chlorophyta store food as glucose instead of starch

Unicells, fillament, sheets, colonies, sphere, stars
Freshwater, marine, wet films, symbionts
Pigments: Chl a,b, carotenoids
Store food as starch
Cell walls: cellulose
Sexual and asexual reproduction
Variations
a. Unicellular
Motile:chlamydomonas, chlorella
Desmids: star shaped or crescent shape
Acetabularia
b. Filamentous
Spirogyra
Oedogonium
hydrodietyon
c. Colonial (multicelluar)
Ulva
Volvox
d. Coenocytic
Codium

Chlorophyta (green Algae) exhibit various forms including unicells, filaments, sheets, colonies, sphere, stars. They can be found in freshwater, marine environments, wet films, and as symbionts. They contain pigments such as Chl a, b, and carotenoids, store food as starch, have cellulose cell walls, and reproduce sexually and asexually, showcasing a variety of characteristics and variations.

Explanation

Chlorophyta (green Algae) exhibit various forms including unicells, filaments, sheets, colonies, sphere, stars. They can be found in freshwater, marine environments, wet films, and as symbionts. They contain pigments such as Chl a, b, and carotenoids, store food as starch, have cellulose cell walls, and reproduce sexually and asexually, showcasing a variety of characteristics and variations.

4. What are common features of Phylum Chromophyta (Kingdom chromista)?

Features in Common
a.Chlorophll a, Carentoids, xanthophylls
b. Store food as oils or carbohydrates laminarin
c. Hiarlike projections on flagellum

C. Hiarlike projections on flagellum

B. Store food as oils or carbohydrates laminarin

D. Cell wall made of chitin

Phylum Chromophyta (Kingdom chromista) is characterized by the presence of Chlorophll a, Carentoids, and xanthophylls. It does not store food as oils or carbohydrates like laminarin, nor does it have hairlike projections on the flagellum. Additionally, the cell wall of Phylum Chromophyta is not made of chitin.

Explanation

Phylum Chromophyta (Kingdom chromista) is characterized by the presence of Chlorophll a, Carentoids, and xanthophylls. It does not store food as oils or carbohydrates like laminarin, nor does it have hairlike projections on the flagellum. Additionally, the cell wall of Phylum Chromophyta is not made of chitin.

5. What is a characteristic of Xanthophyceae within the Phylum Chromophyta?

C. Red coloration

D. Marine habitat

A. Freshwater unicells
b. flagellae point opposite directions

A. Freshwater unicells

Xanthophyceae are known for their flagellae pointing in opposite directions within the Phylum Chromophyta.

Explanation

Xanthophyceae are known for their flagellae pointing in opposite directions within the Phylum Chromophyta.