Micro- and Cellular Biology

Question 1

Viruses can consist of:

a) DNA and proteins
b) proteins, nucleic acid and lipids
c) nucleic acids and lipids
d) RNA and proteins

Answer 1

a) DNA and proteins
b) proteins, nucleic acid and lipids
d) RNA and proteins

Question 2

Virus envelope composed of proteins is called:

a) murein
b) capsid
c) peptidoglycan
d) proteinic bag

Answer 2

b) capsid

Question 3

Prokaryotic organisms are:

a) bacteria
b) amoeba
c) yeast
d) cyanophyta

Answer 3

a) bacteria

d) cyanophyta

Question 4

Antibiotics act on the level of:

a) DNA synthesis
b) protein synthesis
c) cell wall synthesis
d) nucleus assembly

Answer 4

a) DNA synthesis
b) protein synthesis
c) cell wall synthesis

Question 5

The average size of bacteria is:

a) approximately 0.1 micrometer
b) approximately 1 micrometer
c) approximately 1 millimeter
d) several nanometers

Answer 5

b) approximately 1 micrometer

Question 6

Prokaryotic organisms are distinguished as:

a) DNA or RNA carrying bacteria
b) Eubacteria and Archaea
c) GRAM + and GRAM - bacteria
d) sexually and asexually reproducing procaryotes

Answer 6

b) Eubacteria and Archaea

c) GRAM + and GRAM - bacteria

Question 7

Eukaryotic cells can be characterized by having:

a) plasmids carrying the F-factor for conjugation
b) nucleus with nuclear envelope
c) endomembrane-system
d) organelles like mitochondria

Answer 7

b) nucleus with nuclear envelope
c) endomembrane-system
d) organelles like mitochondria

Question 8

To eukaryotes belong:

a) protozoa
b) Euglena
c) fungi
d) blue-green algae

Answer 8

a) protozoa
b) Euglena
c) fungi

Question 9

Find the right pairs of words:

peptidoglycan 
endoplasmatic reticulum 
cyclin
endosymbiont
S-Phase
chromatin
contractile ring
golgi apparatus
oncogene
microtubuli

Cdk
spindle pole 
nucleus 
plastid
tumor suppressor gene 
cytokinesis
DNA replication 
synthesis of lipids & proteins
bacteria 
glykolipids

Answer 9

peptidoglycan - bacteria

endoplasmatic reticulum - synthesis of lipids & proteins

cyclin - Cdk

endosymbiont - plastid

S-Phase - DNA replication

chromatin - nucleus

contractile ring - cytokinesis

golgi apparatus - glykolipids

oncogene - tumor suppressor gene

microtubuli - spindle pole

Question 10

Phases of mitosis:

Bild beschriften!!!

Answer 10

Nr. 1) Telophase (große Zelle, Spindeln an Zellwand)

Nr.2) Anaphase (relativ große Zelle, Spindeln mittig aber nicht geschlossen)

Nr.3) Interphase (Kern ohne erkennbare Struktur)

Nr.4) Metaphase (Spindeln am Äquator)