LECTURE 2-THE NUCLEUS

Question 1

PROKARYOTIC

Answer 1

CELL WITHOUT A NUCLEUS

Question 2

EUKARYOTIC

Answer 2

CELL WITH A NUCLEUS

Question 3

CYTOSOL

Answer 3

CONCENTRATED AQUEOUS GEL OF THE CYTOPLASM EXCLUDING ORGANELLES AND MEMBRANES(SITE OF MANY CHEMICAL REACTION)

Question 4

CYCTOPLASM

Answer 4

CYTOSOL + MEMBRANE BOUNDED ORGANELLES EXCEPT NUCLEUS

Question 5

CYTOSKELETON

Answer 5

A NETWORK OF PROTEIN FILAMENTS THAT EXTEND THROUGHOUT THE CELL

Question 6

DRAW NUCLEUS DIAGRAM AND LABEL

Answer 6

COMPARE

Question 7

STATE FUNCTION OF NUCLEUS AND DEFINE

Answer 7

1)REPLICATION-MEDIATES COPYING OF DNA IN THE CELL CYCLE ,ESSENTIAL FOR GROWTH
2)TRANSCRIPTION-CONTROLS PRODUCTION OF MRNA IS PRODUCED IN THE NUCLEUS USING DNA AS A TEMPLATE
3)TRANSLATION-MRNA IS TRANSPORTED VIA THE NUCLEAR PORES TO THE CYCTOPLASM FOR THE SYNTHESIS OF SPECIFIC PROTEINS

Question 8

DIFFERENCES BETWEEN LIGHT MICROSCOPE AND ELECTRON MICROSCOPE

Answer 8

LM-IMAGE IS COLOURED-VACUUM IS NOT REQUIRED-NO NEED FOR HIGH VOLTAGE ELECTRICITY

EM-IMAGE IS BLACK AND WHITE -VACUUM IS ESSENTIAL FOR THE OPERATION-HIGH VOLTAGE ELECTRIOC CURRENT IS REQUIRED