LHA # 1: Lecture Homework Assignment #1/microbiology Home Work

Section

1. Match the prokaryotic cell structure with its function(s) or its role(s) in disease by placing the Ietter(s) on
the blank line. Note: Each structure may have more than one function/role associated with it. However, each
function/role will be used only one time. (1 pt. each correctxanswer; -1 pt. each incorrect answer)
Prokaryotic Cell Structure Function or Role in Disease

Peptidoglycan A. Site of protein synthesis (a.k.a., translation)
Flagellum (flagella); B. Reception and processing of electrochemical communication
Axial fibrils (a.k.a, endoflagella, signals; Quorum sensing
periplasmic flagella)
Glycocalyces: Capsule; C. Protection from drying, antibiotics. etc.
Slime layer
Lipid A of E. Specific adherence
Lipopolysaccharide (LPS)
F. Polysaccharide barrier protects bacteria against phagocytosis
I. May carry genes for antibiotic resistance, virulence factors,
metabolic factors, etc.
J. Serves as endotoxin and can affect all human body systems
K. Provides rigidity and shape to cell
L. One component can be used to classify living organisms
M. Provides protection from osmotic fluctuations
2. Organic molecules can be recognized by the presence of what elements? (1 pt.)
3. Water has a number of unigue characteristics. Identify two. (2 pts.)

7.

LHA # 1: Lecture Homework Assignment #1/microbiology Home Work

Section

1. Match the prokaryotic cell structure with its function(s) or its role(s) in disease by placing the Ietter(s) on
the blank line. Note: Each structure may have more than one function/role associated with it. However, each
function/role will be used only one time. (1 pt. each correctxanswer; -1 pt. each incorrect answer)
Prokaryotic Cell Structure Function or Role in Disease

Peptidoglycan A. Site of protein synthesis (a.k.a., translation)
Flagellum (flagella); B. Reception and processing of electrochemical communication
Axial fibrils (a.k.a, endoflagella, signals; Quorum sensing
periplasmic flagella)
Glycocalyces: Capsule; C. Protection from drying, antibiotics. etc.
Slime layer
Lipid A of E. Specific adherence
Lipopolysaccharide (LPS)
F. Polysaccharide barrier protects bacteria against phagocytosis
I. May carry genes for antibiotic resistance, virulence factors,
metabolic factors, etc.
J. Serves as endotoxin and can affect all human body systems
K. Provides rigidity and shape to cell
L. One component can be used to classify living organisms
M. Provides protection from osmotic fluctuations
2. Organic molecules can be recognized by the presence of what elements? (1 pt.)
3. Water has a number of unigue characteristics. Identify two. (2 pts.)

7.