Question

Which of the following statements about the characteristics of organelles are correct?​

(i) Mitochondria contain their own DNA.​
(ii) Lysosomes contain many anabolic enzymes.​
(iii) Secretory liver cells have abundant number of RER.​
(iv) Ribosomes are always found attached to the Golgi apparatus.​

• A. (i) and (iii)​
• B. (i), (ii) and (iv)​
• C. (i) and (ii)​
• D. (i), (ii), (iii) and (iv)​

Answer 1

The correct option is A (i) and (iii)​

Let's discuss each statement one by one.

• Statement (i) says that mitochondria contain their own DNA and it is a correct statement as mitochondria and plastids are the only cell organelles that contain their own genetic materials other than the nucleus.
• Statement (ii) says lysosomes contain many anabolic enzymes which is an incorrect statement as the lysosomes contain hydrolytic enzymes and not the anabolic enzymes.
• Statement (iii) says that secretory liver cells have an abundant number of RER (Rough Endoplasmic Reticulum), and it is a correct statement.
• Statement (iv) says that ribosomes are always found attached to the golgi bodies. And this is an incorrect statement as we already learnt that the ribosomes help in protein synthesis and are found attached to the endoplasmic reticulum and not the golgi bodies.
• Thus, statements (i) and (iii) are correct.