Cell structure

Question 1

describe nucleus

Answer 1

is admin
largest organelle
has double membrane
chomosomes attaches ot nuclea lamina
nucl envelope has pores
has nucleolus inside

Question 2

What is each organelle analagous to in the industrial cell analogy

Answer 2

admin - nucleus
manufacturing - ribosomes, Rough and smooth ER
processing - Golgi apparatus
recycling, waster removal - lysosomes
incinterator - peroxisomes
powerplant - mitochondira/chloroplast
security - cytoskeleton, cell wall

Question 3

list organelles

7-8

Answer 3

nucleus
ribosomes
endoplasmic reticulum (rough and smooth)
golgi apparatus
lysosomes
peroxisomes
mitochondrion/chloroplasts
cytoskeleton

Question 4

describe ribosomes

Answer 4

manufacturing
milliions
makes proteisn
made of RNA and protein

Question 5

decribe rough endrplasmic reticulum

Answer 5

manufacturing
associated with ribosomes
memb is continuous with Nucl envelope and smooth ER
makes many proteins
folds and processing proteins before transportation

Question 6

Describe smooth enodplasmic reticulum

Answer 6

manufacturing
no ribosomes
lipid processing center and storage facility
makes phospholipids
reservoir for Ca2+ ions

Question 7

describe golgi apparatus

Answer 7

processing
made of flat memb sacs
has polarity
cis pole is clost to rough ER and nucl
trans pole is facing plasma memb
packages proteins from ER and releases into vesicles

Question 8

Describe lysosomes

Answer 8

recycling and waste removal
degrade solic waste
acidic
breaks down and excretes things

Question 9

what are 2 mechs for delivery of waste and by what

Answer 9

lysosomes
phagocytosis - eat cell
- cell memb surrounds and engulfs
autophagy - organelle in cell dissolved by lysosome
(+1 - receptor mediated endocytosis)

Question 10

describe peroxisomes

Answer 10

incinerator
where oxidation reactions occur
grow indi of other organelles
specific for each ox of molec

Question 11

describe mitochondrion

Answer 11

power plant
makes energy, atp
has 2 memb
50 million
grow indi to cell division

Question 12

describe chlosoplasts

Answer 12

power plant
makes eng in plants
analagous to miochondria

Question 13

describe cytoskeleton

Answer 13

netword of proteins and fibers
give cell shape
has role in motility and macromolec transfer

Question 14

Describe cell wall

Answer 14

found in plants
for structure, protection