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Get Answers to all your Questions
- #National Eligibility Cum Entrance Test
- #National Eligilibility Cum Entrance Test
- #Cell Structure and Function
- #Class 11
- #Medical
- #Biology
Match the following and select the correct answer :
(a) Centriole (i) Infoldings in mitochondria
(b) Chlorophyll (ii) Thylakoids
(c) Cristae (iii) Nucleic acids
(d) Ribozymes (iv) Basal body cilia or flagella
Option: 1
(a) (b) (c) (d)
(iv) (ii) (i) (iii)
Option: 2
(a) (b) (c) (d)
(i) (ii) (iv) (iii)
Option: 3
(a) (b) (c) (d)
(i) (iii) (ii) (iv)
Option: 4
(a) (b) (c) (d)
(iv) (iii) (i) (ii)
Answers (1)
Centrosome and Centrioles
Structure:
- Centrosome is an organelle which is made up of two centrioles.
- These organelles are mainly found in most of the animal cells.
- Centrioles are also called diplosomes.
- They are non-membranous organelles.
- They are surrounded with pericentriolar material.
- The centrioles are present inside a specialised cytoplasm called centrosphere or kinoplasm.
- The centrosphere and centrioles are together called centrosomes.
- Centrioles are composed of tubulin proteins.
- There are 9 units of tubulin in the periphery and none in the centre, the arrangement becomes 9+0.
- Centrioles are mainly involved the cell division.
- They form the spindle fibres for the attachment of the chromosomes and their distribution during the cell division.
- They also take part in the formation of cilia and flagella.
- They help in the development of tail fibres of the sperm.
-
Centrioles are present in the basal body of cilia and flagella. Chlorophyll is present in
the thylakoids. Cristae are infoldings in mitochondria. Ribozymes are ribonucleic acid that act as enzymes.
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