High School Biology : Understanding Other Cell Structures

Study concepts, example questions & explanations for High School Biology

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Example Questions

Example Question #71 : Cell Biology

Which of the following is not considered part of the eukaryotic endomembrane system?

Possible Answers:

Golgi body

Vesicle

Mitochondria

Endoplasmic reticulum

Cell membrane

Correct answer:

Mitochondria

Explanation:

The endomembrane system is a collection of membranes making up a cell that are connected either physically or via transport using vesicles. One of its main functions is to package and "ship" things made in the cell to other places in the organism, such as hormones like insulin. In order to do this, different organelles with different functions are necessary, just like there are different people with different jobs who make sure a package is mailed to the proper place.

Example Question #72 : Cell Biology

Where is ribosomal RNA formed?

Possible Answers:

Rough endoplasmic reticulum

Nucleolus

Smooth endoplasmic reticulum

Mitochondria

Golgi apparatus

Correct answer:

Nucleolus

Explanation:

The nucleolus is a specialized region found within the nucleus. It is responsible for synthesizing ribosomal RNA (rRNA), while transcription of messenger RNA (mRNA) and transfer RNA (tRNA) occurs in parts of the nucleus other than the nucleolus.

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