eukaryotic

Question 1

what does the nucleus contain?

Answer 1

nucleolus, pores, nuclear envelope, chromatin, nucleoplasm

Question 2

nucleoplasm

Answer 2

cytoplasm of nucleus
filled with chromatids

Question 3

pores

Answer 3

allow substances like rna to move from the nucleus

Question 4

nucleolus

Answer 4

dark region of chromatin producing ribosomes and rna

Question 5

what does the nucleus contain

Answer 5

dna and proteins

Question 6

how does the dna fit in the cell

Answer 6

the dna coils around histone proteins.8 histones typically forms one nucleosome

Question 7

what is in a mitochondrion ?

Answer 7

cristae, outer and inner membrane, matrix

Question 8

mitochondrion

Answer 8

8 micrometers long, where aerobic respiration and ATP synthesis takes place.

Question 9

how does ATP produce energy

Answer 9

glucose produces ATP, which releases energy by releasing one phosphate molecule( as ATP is a triphosphate)

Question 10

membranes

Answer 10

outer membrane is quite permeable, and inner membrane is folded into cristae

Question 11

cristae

Answer 11

this gives mitrochindrion a large SA for enzyme attachment

Question 12

matrix

Answer 12

contains small circular strands of dna, lipids and proteins

Question 13

smooth endoplasmic reticulum

Answer 13

tubular membrane channels involved in synthesising, storing and transporting lipids and carbohydrates

Question 14

rough endoplasmic reticulum

Answer 14

same as SER but studded with ribosomes creating a rough appearance

Question 15

golgi body

Answer 15

series of flattened membrane sacks or cistern with small hollow structures called vesicles
it modifies and transports proteins from the RER to the cell membrane for export

Question 16

vesicles

Answer 16

membrane-bound sacs containing substances to be moved around or our of the cell - eg cell debris, proteins

Question 17

lysosomes

Answer 17

contain digestive enzymes
breaks down unwanted or absorbed substances (sometimes even the whole cell - autolysis) so the materials can be recycled
can also digest its contents or release enzymes to break down material outside the cell