Mer Scott
Quiz by , created more than 1 year ago

Objectives: • Define what is meant by the endomembrane system • Describe the function of the endomembrane system • Outline the process of exocytosis and endocytosis

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Mer Scott
Created by Mer Scott about 7 years ago
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L7 The Endomembrane System

Question 1 of 8

1

Which statement about the smooth endoplasmic reticulum is INCORRECT?

Select one of the following:

  • The sER metabolises carbohydrates.

  • The sER synthesizes lipids.

  • The sER detoxifies drugs and poisons (non-nutritional chemicals).

  • The sER stores calcium.

  • The sER synthesizes proteins.

Explanation

Question 2 of 8

1

The amount of sER can increase or decrease according to a cell's demands.

Select one of the following:

  • True
  • False

Explanation

Question 3 of 8

1

Select from the dropdown lists to complete the text.

The rough endoplasmic reticulum contains ( ribosomes, nucleic acid ), and is the site of most ( protein, lipid ) synthesis. It also stores protein in the lumen, its ( interior, exterior ).

Explanation

Question 4 of 8

1

Synthesis of cytoplasmic proteins occurs in the rER.

Select one of the following:

  • True
  • False

Explanation

Question 5 of 8

1

Which statement about the Golgi is NOT correct?

Select one or more of the following:

  • The Golgi has polarity, and is responsible for processing proteins from the rER.

  • The Golgi glycosolates proteins (adds sugars) and modifies simple carbohydrates to make complex carbohydrates.

  • Vesicles tagged for the plasma membrane exit the trans side of the Golgi.

  • Proteins destined to return to the rER to maintain its structure leave the Golgi in vesicles via the cis face.

Explanation

Question 6 of 8

1

The Golgi tags proteins so they are directed to the proper vesicle, and then tags those vesicles to direct them to the correct target compartment.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 8

1

There are two pathways from the Golgi out of the cell. These pathways can be continuous and unregulated, or "" pathways (e.g. proteins transported to the ECM) or they can be "" pathways, for example the release of .

Drag and drop to complete the text.

    exocytosis
    Constitutive
    Regulated
    hormones

Explanation

Question 8 of 8

1

s is a type of endocytosis which is selective, and uptakes "food" to "eat". however is the non-selective uptake of solutes. Endocytosis can also uptake molecules via endocytosis.
All of these pathways join their vesicles with for digestion.

Drag and drop to complete the text.

    Phagocytosis
    Pinocytosis
    very specific
    receptor mediated
    lysosomes

Explanation

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