The following statements (a-e) are related to various cell organelles. Read and choose the correct option.
a. Tonoplast facilitates transport of a number of ions and other materials against concentration gradient into the vacuole.
b. Growth of primary wall continues as the cell matures and secondary wall is formed on the inner side of the cell.
c. Inclusion bodies are reserve material storage structure in bacteria that are covered by a single lipid membrane.
d. Palade particles are ribonucleoproteins and are membraneless organelles found in all living cells.
e. Nuclear pores allow movement of RNA and protein molecules in both directions between nucleus and cytoplasm.
b. Growth of primary wall continues as the cell matures and secondary wall is formed on the inner side of the cell.
c. Inclusion bodies are reserve material storage structure in bacteria that are covered by a single lipid membrane.
d. Palade particles are ribonucleoproteins and are membraneless organelles found in all living cells.
e. Nuclear pores allow movement of RNA and protein molecules in both directions between nucleus and cytoplasm.
Important Questions on Cell : The Unit of Life
| Column I | Column II | ||
| A | Thylakoids | (i) | Disc-shaped sacs in Golgi apparatus |
| B | Cristae | (ii) | Condensed structure of DNA |
| C | Cisternae | (iii) | Flat membranous sacs in stroma |
| D | Chromatin | (iv) | Infoldings in mitochondria |
Mitochondria and chloroplast are:
(i) Semi - autonomous organelles
(ii) Formed by the division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery
Which one of the following option is correct?
Assertion (A): In a vacuole, the concentration of ions and other material will be less than the cytoplasm.
Reason (R): Tonoplast facilitates the transport of ions and other material against concentration to the vacuole.
The correct option among the following is:
