Which of the following is $NOT$ a characteristic of a eukaryotic cell?

Select the correct option for the following statements:
$(i)$ The $9 + 2$ arrangement of microtubules is found in the cilia/flagella.
$(ii)$ The enzymes of the Krebs cycle are located in the outer membrane/inner membrane of the mitochondria.

Given below are two statements:
Statement $I$: Mitochondria and chloroplasts are both double-membrane-bound organelles.
Statement $II$: The inner membrane of mitochondria is relatively more permeable compared to the inner membrane of chloroplasts.
In the light of the above statements,choose the most appropriate answer from the options given below:

Which organelle has a single membrane?

Which of the following organelles are membrane-less?

$A$ mature plant cell has which of the following components?