All of the following are common molecules in membranes of all type of cells except:
Correct answer: B. Cholesterol
- A. Globular proteins
- B. Cholesterol
- C. Traces of carbohydrates
- D. Phospholipid
Explanation
Cholesterol is a type of lipid that is a major component of eukaryotic cell membranes. It helps maintain membrane fluidity and stability by interacting with phospholipids. Cholesterol is present in large amounts (around 20-40 mol%) in eukaryotic plasma membranes, but it is universally absent in the membranes of prokaryotes. Therefore, the correct option is cholesterol as it is not present in all types of cell membranes.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Cell Structure and Function questions
Which of the following is not present in plant cells?
It is an example of semi autonomous organelle found in both animal and plant cells:
Which of the following statements are true for mitochondria and chloroplasts?A. ATP synthesis is seen in bothB. The outer membrane has more surface area in bothC. Circular naked DNA, RNA, and 70 ribosomes are seen in bothD. Oxidative phosphorylation occurs in both
Which of the following is NOT a characteristic feature of animal cell membrane?
Which of the following acts as receptor site on plasma membrane?
Which structure is the most important for cellular life?