Who first explained that new cells are formed from pre-existing cells
1. Theodore Schwann
2. Rudolf Virchow
3. Matthias Schleiden
4. Robert Hooke
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMark the correct statement about centriole.
1. Forms basal body
2. Found in higher plant cells
3. Has ‘9 + 2’ organisation of microtubules
4. Is surrounded by plasma membrane
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the wrong statement about eukaryotic cells.
1. They have well defined nucleus
2. Possess 70S ribosomes
3. May have a cell wall
4. No organelles are single membrane bound
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyChoose the correct option with respect to function of the cell organelles
A |
B |
C |
D |
(1) Protein synthesizes |
Citric acid cycle enzymes |
Protein processing |
Lipid modification |
(2) mRNA synthesis |
ETS |
Glyco- sidation |
Protein processing |
(3) Trans- cription |
Anearobic respiration |
Secretion |
Sex hormone production |
(4) rRNA synthesis |
Pyruvate dehydro- genase complex |
Protein modification |
Protein synthesis |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyDisc-shaped proteinaceous structure associated with centromere is called
1. Kinetochore
2. Secondary constriction
3. Both Primary and Secondary constriction
4. Nucleolar organizer
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the incorrect match
1. Palade particle – Ribosome
2. Flagella – Cell movement
3. Centriole – Found in higher plants
4. Lysosome – Acid hydrolase
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe given diagram represents the four different structures which one of these is correct containing material and function:-
|
|
|
|
a. |
Nucleolus |
NOR |
Synthesis of rRNA for formation of 80 S Ribosome |
b. |
Nuclear Pore |
Chromatin |
Exchange material between cytoplasm and nucleoplasm |
c. |
Nucleoplasm Protein |
Nucleoplasmin |
Formation of nuclear matrix |
d. |
Nuclear membrane |
Ribosome |
Cellulose synthesis |
1. A
2. B
3. C
4. D
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyEukaryotic cells considered as more efficient than prokaryotic cells, due to -
1. compartmentalisation of cytoplasm
2. Infolding of membrane
3. Presence of cell wall
4. Aerobic respiration
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following cell organelle is absent in prokaryotic cell?
1. Ribosome
2. Lysosome
3. Mitochondria
4. 2 and 3 both
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyER, Golgi complex, lysosomes and vacuoles are included in endomembrane system because :-
1. Their function are similar
2. Their structure are same
3. Their function are co-ordinated
4. Golgi complex, lysosomes and vacuoles are originated from the ER
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology