It is not found in composition of ER:
Correct answer: D. DNA
- A. Carbohydrates
- B. Lipids
- C. Proteins
- D. DNA
Explanation
The endoplasmic reticulum (ER) is primarily composed of lipids and proteins, which help in its structural formation and function in synthesis and processing roles. Carbohydrates may be present in conjunction with proteins, forming glycoproteins, but they are not a fundamental structural component of ER. DNA is not present in the ER; it is located within the nucleus and mitochondria, which are responsible for genetic storage and expression. Thus, DNA is the correct answer as it is not a component of the ER.
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
_extend from nucleus and touch cell membrane.
If a radioactive amino acid is given to an organism, the organelle that is going to show radioactivity first is:
Network of tubules continuous with nuclear membrane:
Diameter of mitochondria ranges between:
It is a true statment:
Enzymes in mitochondrial matrix help in which of the following metabolic processes?