PYQSide ExamsMy practice

Biological Classification · Question 15

NEET (UG) 2021MCQEasy📈 Topic in 38% papers+4−1
1

Which of the following statements is correct?

  1. Some of the organisms can fix atmospheric nitrogen in specialized cells called sheath cells
  2. Fusion of two cells is called Karyogamy
  3. Fusion of protoplasm between two motile or non-motile gametes is called plasmogamy
  4. Organisms that depend on living plants are called saprophytes

Answer

(3) Fusion of protoplasm between two motile or non-motile gametes is called plasmogamy

Solution

(1) Incorrect – cyanobacteria such as Nostoc and Anabaena fix nitrogen in specialised cells called heterocysts.

(2) Incorrect – fusion of two nuclei is called karyogamy.

(3) Correct – as per NCERT, fusion of protoplasms between two motile or non-motile gametes is called plasmogamy.

(4) Incorrect – organisms that depend on living plants are parasites; saprophytes absorb nutrients from dead decaying matter.

Answer: (3)

NEET (UG) 2021

Keep practising — Biological Classification

2

Which of the following is correct about viroids?

  1. They have free RNA without protein coat
  2. They have DNA with protein coat
  3. They have free DNA without protein coat
  4. They have RNA with protein coat
NEET (UG) 2020
3

Which of the following statements is incorrect?

  1. Infective constituent in viruses is the protein coat
  2. Prions consist of abnormally folded proteins
  3. Viroids lack a protein coat
  4. Viruses are obligate parasites
NEET (UG) 2019
4

Which of the following statement is incorrect?

  1. Conidia are produced exogenously and ascospores endogenously.
  2. Yeasts have filamentous bodies with long thread-like hyphae.
  3. Morels and truffles are edible delicacies.
  4. Claviceps is a source of many alkaloids and LSD.
NEET (UG) 2019
5

Match Column-I with Column –II. Choose the correct answer from the options given below :

  1. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
  2. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
  3. (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
  4. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
NEET (UG) 2019
6

Which among the following is not a prokaryote?

  1. Mycobacterium
  2. Saccharomyces
  3. Oscillatoria
  4. Nostoc
NEET 2018
7

Select the wrong statement.

  1. Mushrooms belong to basidiomycetes.
  2. Cell wall is present in members of fungi and plantae.
  3. Pseudopodia are locomotory and feeding structures in sporozoans.
  4. Mitochondria are the powerhouse of the cell in all kingdoms except monera.
NEET 2018
8

After karyogamy followed by meiosis, spores are produced exogenously in

  1. Saccharomyces
  2. Neurospora
  3. Alternaria
  4. Agaricus
NEET 2018
9

Which of the following organisms are known as chief producers in the oceans?

  1. Euglenoids
  2. Cyanobacteria
  3. Dinoflagellates
  4. Diatoms
NEET 2018
10

Ciliates differ from all other protozoans in

  1. having a contractile vacuole for removing excess water
  2. having two types of nuclei
  3. using flagella for locomotion
  4. using pseudopodia for capturing prey
NEET 2018
11

Which of the following are found in extreme saline conditions?

  1. Eubacteria
  2. Cyanobacteria
  3. Mycobacteria
  4. Archaebacteria
NEET 2017

All Biological Classification PYQs →

PDFDownload Biological Classification 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)