Bacteria and Protista - Giovanni Pascoal Flashcards Preview

Grade 11-C Study Group > Bacteria and Protista - Giovanni Pascoal > Flashcards

Flashcards in Bacteria and Protista - Giovanni Pascoal Deck (8)
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1
Q

What is Bacteria?

A
  • Smallest & simplest living organisms
  • Occur in almost every habitat on Earth
  • Some are Aerobic bacteria
  • Some are Anaerobic bacteria
  • Pathogenic (causes diseases) e.g: cholera, TB, anthrax
2
Q

What is the basic structure for a Bacteria?

A
  • Unicellular occur as single cells
  • Cell wall consisting of: Carbohydrates, lipids and proteins
  • Pathogens covered with slime
  • No true nucleus
  • Genetic material is concentrated known as nucleoid
3
Q

what is the shape/form for a Bacteria?

A
  • Rod-shaped (Bacillus or Bacilli)
  • Spherical/ round (Coccus)
  • Spiral-shaped (Spirillium)
  • Comma-shaped (Vibrio)
4
Q

What are the general characteristics for Bacteria?

A
  • Unicellular & Simple
  • No true nucleus, prokaryotic
  • Autotrophic, produce food by photosynthesis
  • Majority are hetorotrophic
  • Reproductions occurs asexually by binary fission
5
Q

What is the three types of heterotrophic substances?

A
  • Parasitic bacteria: obtain food from living organisms
  • Saprophytic bacteria: obtain food from dead organisms
  • Mutualistic bacteria: obtains food from symbiotic relationships
6
Q

What is the basic structure of a Protist?

A
  • Unicellular & Multicellular
  • Algae can photosynthesis due chloroplast in their cells
  • Locomotary structures occur
7
Q

What are the types of cell walls that occur in Protists?

A
  • Green algae: cell walls of cellulose

- Diatoms: cell walls of sillica, shiny appearance

8
Q

General Characteristics of Protists?

A
  • True nuclei therefor eukaryotic
  • Unicellular
  • Microsopically small
  • Others are simple
  • Multicellular
  • primitive level of cell differentiation
  • Autotrophic
  • others heterotrophic
  • Mostly assexual by binnary fission
  • Live anywhere were water occurs