Back to AI Flashcard MakerBiology /Biology NEET - XI: Chapter 8- Cell the unit of life Part 6
Biology NEET - XI: Chapter 8- Cell the unit of life Part 6
This deck covers key concepts from Chapter 8 of the NEET Biology syllabus, focusing on the cell as the unit of life. It includes questions about cellular structures, organelles, and chromatin.
What is centrosphere?
It is the amorphous cytoplasm surrounding centrioles
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Key Terms
Term
Definition
What is centrosphere?
It is the amorphous cytoplasm surrounding centrioles
Where are centrosomes located?
Near the nuclear membrane
Which organelle forms the basal body?
Centrosome
What microtubular arrangement is present in centrioles?
9+0
Oocytes lack which cell organelle?
Centriole
What do the linker proteins link in a centriole?
Adjacently placed A and C microtubules
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| Term | Definition |
|---|---|
What is centrosphere? | It is the amorphous cytoplasm surrounding centrioles |
Where are centrosomes located? | Near the nuclear membrane |
Which organelle forms the basal body? | Centrosome |
What microtubular arrangement is present in centrioles? | 9+0 |
Oocytes lack which cell organelle? | Centriole |
What do the linker proteins link in a centriole? | Adjacently placed A and C microtubules |
What is the core of cilia/flagella of eukaryotes called? | Axoneme |
What is the difference between the peripheral microtubules of centriole and flagella? | Centriole- peripheral triplets | Flagella- peripheral doublets |
What links the adjacent peripheral microtubule doublets in flagella/cilia? | Nexin protein |
What are the radial spokes of cilia/flagella made of? | Nexin protein |
What is the central sheath of axoneme made of in cilia/flagella? | Dyenin protein |
What are the inner and outer arms of peripheral microtubules made of in cilia/flagella? | Dyenin protein |
What acts as ATPase enzyme in cilia/flagella? | Dyenin protein |
What is the pH of nucleoplasm? | 7.2 to 7.5 |
What makes the nucleoplasm basic in nature? | Presence of large amounts of nucleosides |
How many histone proteins are present in a nucleosome? | 5 types of histone proteins |
Which histone protein is called the linker protein? | H1 |
Which is more condensed- euchromatin or heterochromatin? | Heterochromatin |
Which gets lightly stained- euchromatin or heterochromatin? | Euchromatin |
What is the shape of heterochromatin? | Solenoid |
Which type of chromatin is present in nucleolus? | Heterochromatin |
What is the ribosomal factory of cell? | Nucleolus |
Which animal has maximum number of chromosomes? | aulacanthus |
Which plant has maximum number of chromosomes? | Ophioglossum |
Which animal has minimum number of chromosome? | Ascaris |