study question 6

smooth er

If this cell came from human male testes tissue, which labeled organelle would be responsible for the production of the steroid sex hormone testosterone?

What is the function of the nuclear DNA in the synthesis of the lysosome enzymes of the macrophage?

The nuclear DNA codes for the production of lysosome enzyme by the ribosomes on the RER.

Smooth ER

Which labeled organelle stores Ca++ which is required for the contraction of muscle cells?

centriole pair

cell division in animal cells, seldom found in plant cells, composed of protein filaments called microtubles

smooth er

organelle is responsible for the detoxification of therapeutic drugs such as aspirin, sedatives, stimulants, etc. in human liver cells?

Where is the ECM (Exatracellular Matrix) located in animal cells and what is its composition?

outer membrane, The ECM is composed of glycoprotein filaments embedded in fluid

Pieces of new cell membrane are assembled in the rough ER from _______ produced by the ribosomes on the rough ER and ________ synthesized in the smooth ER.

proteins; phospholipids

nucleolus

the site where ribosomes are synthesized and assembled?

Nuclear pore function

transport materials between the nucleoplasm and the cytoplasm

Which of the following most closely represents the correct sequence of events during the process of lysosome enzyme synthesis and digestion of the bacteria by the macrophage.

1,7,12,3,11,6,14,10

Mitochondria

able to divide, DNA, ribosomes, found in heart cells in vertebraes, ATP

functions of the ECM.

• support cell membrane • communication between outside and inside of the cell • holds cells together in tissue

What occurs in the lumen (interior) of golgi body during the production of functional lysosomes?

Chemical modification of the lysosome enzyme, (i.e. most likely folding of the polypeptide chain to form the secondary and tertiary) to form the nearly "mature" enzyme.