organelles and compartmentalization

Question 1

wassa organelle proper definition

Answer 1

discrete structures that are seperate subunits within cells, adapted to perform specific functions/tasks

Question 2

define compartmentalization

Answer 2

The organisation of different functions and processes within specific subcellular structures separated by plasma membranes.

Question 3

how does the cytoplasm contribute to the compartmentalization of these organelles - in eukaryotic cells

Answer 3

it allows for the devision of the organelles, also thru their membranes - these organelles can either be divided by a single of double membrane. this is only for eukaryotic cells cuz most of their organelles r membrane bound. they have r divided up into membrane-bound compartments (phospholipid bilayer) which r either bound by a single or double membrane.

Question 4

what structures aren’t considered organelles and why

Answer 4

1. cell wall
2. cytoplasm
3. cytoskeleton
   they don’t have membranes, they aren’t unique, and they aren’t adapted to perform SPECIFIC functions

Question 5

give me 3 advantages of compartmentalization of the organelles.

Answer 5

1. damaging substances r kept separate
2. optimal conditions/enviornments r maintained for o’s 2 perform efficiently, don’t get denatured.
3. enzymes n substrates r localized/restricted so that they r available at higher concentrations.

Question 6

what can complex organelles do

Answer 6

complex organelles have complex structures and so they can perform complex functions - they have specific adaptations.

Question 7

define post-transcriptional modification

Answer 7

Changes to mRNA after transcription, including removal of pieces of the mRNA and other modifications that are necessary for a working protein to be produced.
this is a good thing cuz we don’t want the mrna sequence to change during translation when it becomes a protien cuz then that could change its function and/or the gene expression etc.

Question 8

when can modification take place

Answer 8

within the nucleus before it goes outside to ribosomes to become proteins. - this is the compartmentalization of the nucleus

Question 9

what does the compartmentalization of the cytoplasm do

Answer 9

cuz its a fluid like shit - it separates em organelles.
This ensures that pathways requiring specific enzymes or metabolites run smoothlyand are not
at risk from interference from other cell structures or chemicals

Question 10

what is the contribution of lysosomes in compartmentalization of the phagocytic vacuoles?

Answer 10

when ur cell eats some bacteria n shit the lysosomes create something called phagocytic values (which is created thru ENDOCYTOSIS) to separate these waste products from the proper functioning organelles. to also break em down n stuff.

THE LYSOSOMES CONTAINING DIGESTIVE ENZYMES FUSE W THE PHAGOCYITC VACUOLES TO COMPARTMENTALIZE THE WASTE AND THE GOOD ORGANELLS.