BIOD 171 MICROBIOLOGY MODULE 2 PORTAGE LEARNING REVISION GUIDE WITH METABOLISM AND ENZYME REVIEW

BIOD 171 MICROBIOLOGY MODULE 2 PORTAGE
LEARNING REVISION GUIDE WITH
METABOLISM AND ENZYME REVIEW

◉ viruses.
Answer: RNA or DNA surrounded by structural protein layer, many
additional structural features, no metabolic capacity


◉ prokaryote vs eukaryote differences.
Answer: P: Small, unicellular, no nucleus, circular DNA, no
membrane bound organelles


E:Large, complex, uni or multi cellular
nucleus present, linear DNA, membrane bound organelles


◉ prokaryote and eukaryote similarities.
Answer: cytoplasmic membrane, cytoplasm, DNA/RNA , ribosomes


◉ coccus shape.
Answer: round


◉ bacullus.

,Answer: rod


◉ vibro.
Answer: curved rod


◉ coccobacillus.
Answer: short rod


◉ spirillum.
Answer: spiral shaped bacteria


◉ spirochete.
Answer: lose long spiral


◉ streptobacillus.
Answer: chain of rods


◉ cytoplasmic membrane of prokaryotic cells.
Answer: lipid bilayer: no cholesterol
proteins: higher protein content
- 70S of ribosomes

, ◉ cell wall of prokaryotic cells.
Answer: peptidoglycan
protection from osmotic pressure
several types of antibiotics inhibit antibiotic synthesis


◉ what is only found in gram negative bacteria?.
Answer: lipopolysaccharides (type of glyconjugate)


◉ when gram negative cells die and lyse, _________ is released and
starts eliciting an immunologic response.
Answer: Lipid A


◉ gram positive turns
gram negative turns.
Answer: purple
red


◉ lysosyme.
Answer: enzyme that breaks down peptidoglycan
- works on gram positive


◉ complement.