Back to AI Flashcard MakerBiology /Biology NEET - XI: Chapter 8- Cell the unit of life Part 7
Biology NEET - XI: Chapter 8- Cell the unit of life Part 7
This deck covers key concepts from Chapter 8 of the Biology NEET syllabus, focusing on the cell as the unit of life. It includes questions on chromosomal structures, cell components, and their functions.
How many chromatonemata are present in a chromosome?
2
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Key Terms
Term
Definition
How many chromatonemata are present in a chromosome?
2
What is NOR?
Nuclear organizing region, aka secondary centromere
In which chromosomes is primary constriction located?
All chromosomes
Which nitrogenous bases are the chromosomal constrictions rich in?
Adenine and thymine
What is a v-shaped chromosome?
Metacentric chromosome
What is a L-shaped chromosome?
Sub-metacentric chromosome
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| Term | Definition |
|---|---|
How many chromatonemata are present in a chromosome? | 2 |
What is NOR? | Nuclear organizing region, aka secondary centromere |
In which chromosomes is primary constriction located? | All chromosomes |
Which nitrogenous bases are the chromosomal constrictions rich in? | Adenine and thymine |
What is a v-shaped chromosome? | Metacentric chromosome |
What is a L-shaped chromosome? | Sub-metacentric chromosome |
What is a J-shaped chromosome? | Acrocentric chromosome |
What is an i- shaped chromosome? | Telocentric chromosome |
Polytene chromosomes are found in | Salivary glands of insects |
What is the function of polytene chromosomes? | Synthesise proteins required for metamorphosis |
Who discovered polytene chromosome? | Balbiani |
Lamp brush chromosomes are found in | Oocytes of insects/amphibians |
Which is bigger- giant chromosome or lampbrush chromosome? | Lamp-brush chromosome |
What is the function of lamp-brush chromosomes? | Contain yolk producing genes |
Which multiply faster- prokaryotes or eukaryotes? | Prokaryotes |
Mesosomes occur in the form of | Vesicles, tubules and lamellae |
Inclusion bodies in prokaryotes are bound to | They are free |
Which part of cell envelope of plant cell helps in cell to cell recognition? | Cell wall |
Can the primary cell wall grow? | Yes |
What happens to the primary cell wall as it matures? | It diminishes |
Are vacuoles a part of endomembrane system? | Yes |
Where is the luminal compartment of cells? | Inside ER |
Which ER is continuous with the nuclear membrane? | RER |
The cis and trans face of golgi bodies are similar. True or false? | False |
How do mitochondria divide? | Fission |
How many chloroplasts are present in a mesophyll cell? | 20 to 40 |
Which tubules connect grana? | Stroma lamellae |
What does the 'Svedberg' unit signify? | Density and size |
Which dyes stain the chromatin? | Basic dyes |
Who coined the term 'chromatin'? | Flemming |