howcontrived
Quiz by , created more than 1 year ago

A conceptually basic quiz covering eukaryotic organelle structure and function.

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UMHS Cell Bio- Lecture 5 (easy)

UMHS Cell Bio- Lecture 5 (easy)

Question 1 of 15

1

Which of the following tissues contain insulin receptor?

Select one or more of the following:

  • Neurons

  • Skeletal myocytes

  • Adipocytes

  • Hepatocytes

  • None of these

Explanation

Question 2 of 15

1

When insulin binds to its receptor, it stimulates the translocation of _____________ - containing vesicles from the ____________ to the plasma membrane.

Select one of the following:

  • GLUT1; early endosome

  • GLUT3; active zone

  • GLUT4; recycling endosome

  • GLUT5; late endosome

  • None of these

Explanation

Question 3 of 15

1

Insulin stimulates the translocation of glucose permeases, leading to their insertion into the plasma membrane, in which tissues?

Select one or more of the following:

  • Musle

  • White Adipose

  • Neurons

  • None of these

Explanation

Question 4 of 15

1

Almost all protein synthesis begins here.

Select one of the following:

  • On ribosomes

  • In the nucleus

  • In the nucleoulus

  • In the smooth ER

  • None of these

Explanation

Question 5 of 15

1

Which of the following organelles are involved in the biosynthetic pathway?

Select one or more of the following:

  • The ER

  • Golgi

  • Secretory Vesicles

  • Early endosome

  • None of these

Explanation

Question 6 of 15

1

Which of the following organelles is a part of the endocytic pathway?

Select one or more of the following:

  • The plasma membrane

  • The ER

  • Late endosome

  • Golgi

  • None of these

Explanation

Question 7 of 15

1

Which of the following coat proteins is a part of the retrieval pathway?

Select one of the following:

  • COPI

  • COPII

  • Clathrin

  • None of these

  • COPI and COPII only

Explanation

Question 8 of 15

1

Formation of a clathrin-coated vesicle requires which of the following?

Select one or more of the following:

  • Caveoilins

  • Adaptor proteins

  • ARF 1

  • Dynamin

  • None of these.

Explanation

Question 9 of 15

1

In which organelle is ceramide synthesized?

Select one of the following:

  • rER

  • sER

  • Golgi

  • Endosome

  • None of these

Explanation

Question 10 of 15

1

Which of the following statements about glycolipids and sphingomyelins are true?

Select one or more of the following:

  • Both are synthesized from ceramide.

  • Both contain saccharides.

  • Glycolipids are synthesized in the sER whereas sphingomyelins are synthesized in the golgi.

  • Both contain a glycerol molecule.

  • None of these is correct.

Explanation

Question 11 of 15

1

Which of the following is a means by which the cell tags and targets proteins for inclusion in transport vesicles?

Select one or more of the following:

  • Specific amino acid sequences

  • Oligosaccharide modifications

  • Hydrophobic domains

  • None of these

Explanation

Question 12 of 15

1

How is calcium transported into the sER?

Select one of the following:

  • Facilitated diffusion

  • Ligand-gated channel

  • Direct active transport

  • None of these

Explanation

Question 13 of 15

1

How is calcium transported into a cell (across the plasma membrane)?

Select one of the following:

  • Passive diffusion

  • Facilitated diffusion

  • Direct active transport

  • None of these

Explanation

Question 14 of 15

1

Which of the following is correctly arranged in order of INCREASING pH (i.e. from acid to alkaline)?

Select one or more of the following:

  • Lysosome, cytosol, early endosome, late endosome

  • Cytosol, synaptic vesicle, recycling endosome, ER

  • Late endosome, early endosome, lysosome, cytosol

  • None of these

Explanation

Question 15 of 15

1

Proteins targeted to the lysosome contain a __________________ tag.

Select one or more of the following:

  • KDEL

  • Mannose-6-P

  • Phosphatidylinositol

  • SAR-1

  • None of these

Explanation

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