Interrelations of a cell

Question 1

What are the steps to protein production? (6)

Answer 1

(1) The nucleus copies the instructions in the DNA into mRNA.

(2 ) The mRNA leaves the nucleus through a nuclear pore and attaches to a ribosome.

(3) the ribosome is attached to the rough endoplasmic reticulum (ER).

(4)The ribosome reads the instructions and uses the codes to assemble the protein.

(5) The protein inside the rough ER is pinched off in a vesicle and transported to the Golgi body.

(6) The Golgi body packages the protein and may also modify it so that it is ready for release. The protein is now packaged into a vesicle and moved to the cell surface membrane, where it is secreted outside.

Question 2

What the relation of the nucleus with other organelles

Answer 2

Nucleus contains the DNA, which carries instructions for the cell – metabolism, enzymes.

Question 3

What the relation of the nucleuous with other organelles

Answer 3

Copies instructions from DNA into mRNA. Ribosome manufacture.

Question 4

What the relation of the ribosome with other organelle

Answer 4

Either attached to endoplasmic reticulum or free in cytoplasm. Decodes the instructions contained in mRNA.

Question 5

What the relation of the ER with other organelle

Answer 5

Protein synthesis on RER and transport of newly made protein through cell.

Question 6

What the relation of the Golgi body with other organelle

Answer 6

Processes and packages protein

Question 7

What the relation of the vesicles with other organelle

Answer 7

Transport material from ER to Golgi to cell surface membrane or other sites in cell

Question 8

MAHRAN OPEN POWERPOINT LOOK AT DIAGRAMS

Answer 8

MAHRAN OPEN POWERPOINT LOOK AT DIAGRAMS