Identify non-membranous organelle from the following:
Correct answer: B. Centrosome
- A. Endoplasmic reticulum
- B. Centrosome
- C. Lysosomes
- D. Chloroplast
Explanation
The centrosome is a non-membranous organelle found in animal cells. It is involved in the organization of the microtubules, which are the structures that form the mitotic spindle during cell division. The centrosome is composed of two centrioles, which are cylindrical structures that are arranged perpendicular to each other. The centrioles are surrounded by a cloud of amorphous material called the pericentriolar material (PCM). The centrosome is not surrounded by a membrane, which means that it is not technically an organelle. However, it is still considered to be an important organelle because it plays a vital role in cell division.
Last updated
About Cell Structure and Function
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
Practise Cell Structure and Function
2,478 free Cell Structure and Function MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.