Biology Questions and Answers

Biology Questions and Answers

Cell Secretion

1. What is meant by cellular
   secretion?

Cell secretion is the elimination to the
exterior ocell (for example, hormones, mucus,f substances produced by the
sweat, etc.)

2. Which cell organelles are
   well-developed in secretory
   cells?

In secretory cells, like cells of endocrine glands, organellesthe secretory (^)
related “exportation”to production, of substances are processing anwidelyd (^)
present and well-developed. These
organelles arreticulum and the Golgi ae the rough endoplasmicpparatus.
The nuclear memcells generally has mobrane of the secretoryre pores to allow
the intense trafto protein synthfic of moleculesis between thees related
cytoplasm and the nucleus.

3. How do the rough
   endoplasmic reticulum and the
   Golgi apparatus act in the
   production and releasing of
   proteins?

The rough endoplasmicits outer membrane numerous reticulum has in
ribosomes, structures where translation

of messenger RNA and protein synthesis

occur. rough endoplasmicThese proteins are stor reticulum aed in thend later

they go to the Golgi apparatus. Within

the Golgi chemicallyapparatus p transformed and when readyroteins are (^)
they are put inside vesicles that detach
from thwith the plasma membrane (exocytosis)e organelle. These vesicles fuse (^)
in the right place and its content is
liberated outside the cell.

4. What are some examples of
   secretory cells?
   Endocrine thyroid and parathyroid and exocrine pancreaticendocrine cells, cells,
   adenohypophysis, adrenal and pineal

endocrine gastric exocrine acells, the mand endocrine cells, theny types of (^)
mucus secretory cof the bowels, the salivaryells of the lungs and gland cells, (^)
the lacrimal gland cells, the sebaceous
gland cells, the secretory cells ofovaries and testicles, etc., are all the
examples of secretory cells.
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