Intro the the Cell

Question 1

Nuclear envelope

Answer 1

segregate nuc from cyto, double membrane, outer membrane has ribosomes attached and is contiguous with RER

Question 2

Ribosome locations

Answer 2

Free polysomes (mRNA +ribosomes)-used within cell and in RER-typiacally excreted

Question 3

Nuc lamina

Answer 3

Felt like covering of inside the nucleus, maintains structural integrity, has laming

Question 4

Nuc pore

Answer 4

Protein complex that allows things in and out of nut

Question 5

nucleolus

Answer 5

site of rRNA synthesis and site of ribosomal subunit assembly

Question 6

Lamins

Answer 6

intermediate filament proteins, forms dense felt like structure that maintains stability of nucleus

Question 7

Lamin phosphorylation/dephsophorylation

Answer 7

Phosphorylation results in breakdown of nuclear envelope during prophase of mitosis

Question 8

Inclusions

Answer 8

Lipid/glycogen (and other metabolic products) are not enclosed me a cell membrane and are stored in cytosol as inclusions

Question 9

Proteins made from free ribosomes

Answer 9

regulatie trx and gene expressionsa+fproteins that made ribosome itself

Question 10

PrFree ribosome sysnthesis pathway

Answer 10

transcribe mRNA, tranport across nucelar pore, translate into protein, mad ein free ribosmes, go from cyto to nucelus, rRNA transribed at same time of prevous step + processseing occurs, different proteins that associate come together to make large and smal lsubinits, go out nuclear pore, and get ready to make protein