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BLG 151 Study Guide - Final Guide: Multicellular Organism

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blackrat892
28 Sep 2015
School
Ryerson University
Department
Biology
Course
BLG 151
Professor
Martina Hausner

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Document Summary

Blg 151 chapter 5 flashcards: in general eukaryotic cells are larger that bacterial and archaeal cells with exceptions, shape and size to really small protists, cell organization. Eukaryotic cells are distinctive because of their use of membranes. Organelles: are intracellular structures that perform specific functions in cells. B. analogous to the functions of organs in the body of a multicellular organism. The partitioning of the eukaryotic cell interior by membranes makes possible the. C. placement of different cellular functions in separate compartments so that they can take place simultaneously under independent control and proper coordination.

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Related Questions

1. Which cellular processes occur as a consequence of differential control of gene expression in eukaryotic cells?

a) Cell Differentiation

b) Differential Translation

c) Differential Polymerization

d) Differential DNA Replication

e) Differential tRNA Degradation

2) Multicellular organisms are comprised of a variety of cells with different morphologies and different functions. Which is the underlying mechanism that leads to the generation of diverse cell in one organism?

a) The expression of all genes in all cell types.

b) The duplication of the genome in certain cell types.

c) The elimination of specific group of genes from different cell types.

d) The differential expression of particular sets of genes required for a particular cellular phenotype

e) All of the above

3) Which of these statements defines paracrine cell signaling?

a)

A messenger molecule released into the blood stream to bind to a receptor on a cell far away from the release site.

b)

A messenger molecule released by a cell into the extracellular space that binds to receptors on the surface of the same cell.

c)

A messenger molecules released by a cell into the extracellular space that travels short distances to bind to a receptor in a nearby cell.

d)

A messenger molecule release by a tissue into the lumen of an organ that diffuse to bind to receptors far away from the release site.

e)

All of the above.

4) Which effect has the binding of the ligand to a G-protein coupled receptor on intracellular G-protein?

a)

ATP is hydrolyzed, activating phosphorylation

b)

GTP is exchanged for GDP on the G protein, inactivating the G protein

c)

GDP is exchanged for GTP on the G protein, activating the G protein

d)

GMP is released from the G-protein, inactivating the receptor

e)

None of the above