PYQSide ExamsMy practice

Cell: The Unit of Life · Question 120

AIPMT 2002MCQEasy📈 Topic in 50% papers+4−1
1

In bacteria, plasmid is

  1. extra chromosomal material
  2. main DNA
  3. non functional DNA
  4. repetitive gene.

Answer

(1) extra chromosomal material

Solution

As per NCERT, in addition to the genomic DNA (single circular chromosome), many bacteria have small circular DNA outside the genomic DNA called plasmids.

⇒ Plasmids confer certain unique characters, e.g. resistance to antibiotics, and are used as vectors in genetic engineering.

∴ Plasmid is extra chromosomal material.

Answer: (1)

AIPMT 2002

Keep practising — Cell: The Unit of Life

2

Ribosomes are produced in:

  1. Mitochondria
  2. Golgi body
  3. Nucleolus
  4. Cytoplasm
AIPMT 2002
3

In fluid mosaic model of plasma membrane

  1. Phospholipids form a bimolecular layer in middle part
  2. Upper layer is non-polar and hydrophilic
  3. Proteins form a middle layer
  4. Polar layer is hydrophobic
AIPMT 2002
4

Difference in gram positive and gram negative bacteria is due to

  1. cell wall
  2. cell membrane
  3. ribosome
  4. cytoplasm
AIPMT 2001
5

Element necessary for the middle lamella is

  1. K
  2. Cu
  3. Ca
  4. Zn
AIPMT 2001
6

Microtubules are absent in:

  1. Spindle fibres
  2. Mitochondria
  3. Centriole
  4. Flagella
AIPMT 2001
7

Spindle fibres unite with which structure of chromosomes?

  1. Chromocentre
  2. Chromomere
  3. Kinetochore
  4. Centriole
AIPMT 2000
8

Lysosome contains:

  1. Reductive enzymes
  2. Oxidative enzymes
  3. Anabolic enzymes
  4. Hydrolytic enzymes
AIPMT 2000
9

Which of the following ribosomes are engaged in protein synthesis in animal cell?

  1. Ribosomes of only nucleolus and cytosol
  2. Ribosomes which occur on nuclear membrane and E.R.
  3. Ribosomes of only mitochondria and cytosol
  4. Ribosomes of only cytosol
AIPMT 2000
10

Function of telomeres in nucleus is

  1. To seal the ends of chromosome
  2. Poleward movement
  3. To recognize the homologous chromosome
  4. To initiate the RNA synthesis
AIPMT 2000
11

Which cell organelle is concerned with glycosylation of protein?

  1. Endoplasmic reticulum
  2. Ribosome
  3. Mitochondria
  4. Peroxisome
AIPMT 2000

All Cell: The Unit of Life PYQs →

PDFDownload Cell: The Unit of Life PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
All NEET Botany chapters
Class 11The Living WorldBiological ClassificationPlant KingdomMorphology of Flowering PlantsAnatomy of Flowering PlantsCell: The Unit of LifeCell Cycle and Cell DivisionTransport in PlantsMineral NutritionPhotosynthesis in Higher PlantsRespiration in PlantsPlant Growth and Development
Class 12Reproduction in OrganismsSexual Reproduction in Flowering PlantsPrinciples of Inheritance and VariationMolecular Basis of InheritanceStrategies for Enhancement in Food ProductionMicrobes in Human WelfareOrganisms and PopulationsEcosystemBiodiversity and ConservationEnvironmental Issues
Other chaptersBiomolecules (Biology)