Nucleus and Ribosomes
About the Lecture
The lecture Nucleus and Ribosomes by Georgina Cornwall, PhD is from the course Cellular Structure.
Included Quiz Questions
Which of the following statements regarding the nucleus is correct?
- It is surrounded by a double-layered phospholipid bilayer studded with protein channels.
- Nuclear pores let materials flow freely in and out of the nucleus.
- Its main function is energy production.
- It is surrounded by a single phospholipid layer studded with ribosomes.
- The nuclear basket is fixed to the outer surface of the nucleus.
Which of the following is TRUE regarding the structure and function of a nuclear pore?
- A protein channel with a nuclear basket on its inner surface and cytoplasmic filaments on its outer surface that is responsible for highly selective transport into and out of the nucleus
- A protein channel with a nuclear basket on its inner surface and cytoplasmic filaments on its outer surface that allows nonselective transport out of the nucleus
- A protein channel with cytoplasmic filaments on its inner surface and a nuclear basket on its outer surface that is responsible for highly selective transport into and out of the nucleus
- A protein channel with a nuclear basket on its inner surface and cytoplasmic filaments on its outer surface that allows nonselective transport into and out of the nucleus
- A protein channel with a nuclear basket on its inner surface and cytoplasmic filaments on its outer surface that allows nonselective transport into the nucleus
Which of the following statements is FALSE regarding ribosomes?
- Ribosomes help in the synthesis of mRNA inside the nucleus.
- Ribosomes are found free-floating in the cytoplasm or attached to the endoplasmic reticulum.
- A complete ribosome is composed of two subunits, namely, a smaller subunit and a larger subunit.
- Ribosomes have the unique feature of decoding information present on mRNA.
- Owing to their protein-synthesizing capabilities, ribosomes are known as protein-making factories of cells.
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Author of lecture Nucleus and Ribosomes
Georgina Cornwall, PhD
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Very useful
By Danae J. on 11. April 2023 for Nucleus and Ribosomes
Great material easy to learn good pictures …..thank you so much
Quiz Overview
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