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Cellular Processes and Membrane Transport Quiz

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Questions and Answers

Which type of signalling involves signalling molecules acting on the same cell?

Autocrine signalling (correct)
Endocrine signalling
Paracrine signalling
Intracrine signalling

Which type of signalling involves long-range signalling?

Autocrine signalling
Endocrine signalling (correct)
Intracrine signalling
Paracrine signalling

Which organelle releases calcium ions crucial for various signalling pathways?

Endoplasmic reticulum (ER) (correct)
Nucleus
Mitochondria
Lysosome

Which of the following is a benefit of using Nomarski (DIC) optics in microscopy?

It enables visualization of 3D structures. (B) Signup and view all the answers

What is the main difference between prokaryotes and eukaryotes?

Prokaryotes have membrane-bound organelles, while eukaryotes do not. (B) Signup and view all the answers

Which of the following is NOT a feature found in eukaryotic cells?

A rigid cell wall (C) Signup and view all the answers

Which of the following statements is incorrect about the Golgi Apparatus?

It disassembles during cell division (C) Signup and view all the answers

Which of the following statements is most correct about mitochondria?

Mitochondria are able to synthesize proteins for themselves (B) Signup and view all the answers

Protein folding in the rough endoplasmic reticulum is assisted by

The formation of disulphide bonds (C) Signup and view all the answers

Which of the following is incorrect about lysosomes?

The pH of lysosomes is essential for efficient protein degradation (C) Signup and view all the answers

Which of the following is true about untranslated regions (UTRs)?

Genes have both 5' and 3' UTRs. (C) Signup and view all the answers

Which components are necessary for efficient translation to occur?

tRNA, ribosomes, amino acids, mRNA (C) Signup and view all the answers

What is the correct order of an mRNA structure?

5'Cap - 5'UTR - ORF - 3'UTR - PolyA (D) Signup and view all the answers

Which of the following is true about DNA and RNA base pairing?

DNA can base pair with both DNA and RNA. (D) Signup and view all the answers

Which of the following is true about the structure of DNA?

The double helix structure is determined by the order of the bases. (C) Signup and view all the answers

Which of the following is true about the role of the endocytic pathway in protein trafficking?

Delivers extracellular proteins into the cell for degradation or recycling. (B) Signup and view all the answers

Which of the following is true about the role of the SNARE complex in protein trafficking?

Promotes vesicle fusion during protein trafficking. (B) Signup and view all the answers

Which of the following is true about the process of transcription and splicing?

Polyadenylation of the mRNA stabilizes it. (D) Signup and view all the answers

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