PYQSide ExamsMy practice

The Living World · Question 22

AIPMT 2007MCQEasy📈 Topic in 0% papers+4−1
1

Biological organization starts with:

  1. Cellular level
  2. Atomic level
  3. Organismic level
  4. Submicroscopic molecular level

Answer

(4) Submicroscopic molecular level

Solution

As per NCERT, the properties of living organisms arise from the interactions of their constituent biomolecules, and the levels of biological organisation are:

molecules (submicroscopic) → cells → tissues → organs → organ systems → organisms → populations → communities → ecosystems → biosphere.

⇒ Atoms are the units of chemistry (non-living matter); biological organisation begins with the submicroscopic molecular level (biomolecules).

Answer: (4)

AIPMT 2007

Keep practising — The Living World

2

Species are considered as

  1. real basic units of classification
  2. the lowest units of classification
  3. artificial concept of human mind which cannot be defined in absolute terms
  4. real units of classification devised by taxonomists.
AIPMT 2003
3

Biosystematics aims at

  1. the classification of organisms based on broad morphological characters
  2. delimiting various taxa of organisms and establishing their relationships
  3. the classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies
  4. identification and arrangement of organisms on the basis of their cytological characteristics.
AIPMT 2003
4

Nicotiana sylvestris flowers only during long days and N. tabacum flowers only during short days. If raised in the laboratory under different photoperiods, they can be induced to flower at the same time and can be cross-fertilized to produce self-fertile offspring. What is the best reason for considering N. sylvestris and N. tabacum to be separate species?

  1. They cannot interbreed in nature
  2. They are reproductively distinct
  3. They are physiologically distinct
  4. They are morphologically distinct
AIPMT 2003
5

What is true for individuals of same species ?

  1. Live in same habitat
  2. Live in different habitat
  3. Interbreeding
  4. Live in same niche
AIPMT 2002
6

Which of the following is less general in characters as compared to genus?

  1. Species
  2. Division
  3. Class
  4. Family
AIPMT 2001

All The Living World PYQs →

PDFDownload The Living World 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)