NEET  >  Biology 31 Years NEET Chapterwise Solved Papers  >  Test: Biological Classification 5 - From Past 28 Years Questions Download as PDF

Test: Biological Classification 5 - From Past 28 Years Questions


Test Description

25 Questions MCQ Test Biology 31 Years NEET Chapterwise Solved Papers | Test: Biological Classification 5 - From Past 28 Years Questions

Test: Biological Classification 5 - From Past 28 Years Questions for NEET 2022 is part of Biology 31 Years NEET Chapterwise Solved Papers preparation. The Test: Biological Classification 5 - From Past 28 Years Questions questions and answers have been prepared according to the NEET exam syllabus.The Test: Biological Classification 5 - From Past 28 Years Questions MCQs are made for NEET 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Biological Classification 5 - From Past 28 Years Questions below.
Solutions of Test: Biological Classification 5 - From Past 28 Years Questions questions in English are available as part of our Biology 31 Years NEET Chapterwise Solved Papers for NEET & Test: Biological Classification 5 - From Past 28 Years Questions solutions in Hindi for Biology 31 Years NEET Chapterwise Solved Papers course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt Test: Biological Classification 5 - From Past 28 Years Questions | 25 questions in 25 minutes | Mock test for NEET preparation | Free important questions MCQ to study Biology 31 Years NEET Chapterwise Solved Papers for NEET Exam | Download free PDF with solutions
1 Crore+ students have signed up on EduRev. Have you?
Test: Biological Classification 5 - From Past 28 Years Questions - Question 1

The chemical compounds produced by the host plants to protect themselves against fungal infection is [1995]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 1

Phytoalexins are non-specific antibiotic substances produced by plants in response to infection by a fungus.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 2

White rust disease is caused by [1995]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 2

Albugo candida is an obligate parasite causing white rust on members of family Cruciferae and other hosts.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 3

Azotobacter and Bacillus polymyxa are the examples of [1996]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 3

Azotobacter and Bacillus polymyxa are the examples of non-symbiotic nitrogenfixers.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 4

Sex factor in bacteria is [1996]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 4

Sex-factor or F-factor in bacteria results in high frequency conjugation. It allows bacteria to produce sex pilus necessary for conjugation.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 5

Influenza virus has [1996]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 5

Influenza virus is a retrovirus wherein, the genetic material comprises of  RNA.
There are three genera of influenza virus, identified by antigenic differences in their nucleoprotein and matrix protein:   

  • Influenza     virus     A     are     the     cause     of      all flu pandemics and are known to infect humans, other mammals and birds (see also avian influenza).         
  • Influenza     virus     B     are     known     to     infect humans and seals.         
  • Influenza     virus     C     are     known     to     infect humans and pigs. 
Test: Biological Classification 5 - From Past 28 Years Questions - Question 6

In bacterial chromosomes, the nucleic acid polymers are [1996]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 6

Bacterial chromosomes comprise of circular DNA.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 7

Interferons are [1996]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 7

Interferons are virus induced proteins produced by cells infected with viruses. They are antiviral  in action.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 8

Which one of the following is not true about lichens? [1996]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 8

Lichens are composite dual organisms formed by the association between a  fungus and a photosynthetic symbiont. The bulk of lichen body is formed of fungus.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 9

Mycorrhiza is [1996]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 9

Association of algae and fungi is referred to as lichen. Symbiotic association of Rhizobium with roots of leguminous plants is referred to as symbiosis. Mycorrhiza is symbiotic association between fungi and roots of higher plants. The fungal partner of mycorrhiza obtains food from roots of the higher plant and in return supplies mineral elements to it.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 10

The hereditary material present in the bacterium Escherichia coli is [1997, 98]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 10

In any kind of Bacteria (E.coli) double stranded DNA is present.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 11

The plasmids pesent in the bacterial cells are [1997]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 11

Plasmids are the extrachromosomal DNA.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 12

Which one of the following statements about viruses is correct? [1997]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 12

Viruses have either DNA or RNA as the genetic material. Viruses having RNA as the genetic material are known as Retroviruses.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 13

Most of the Lichens consist of [1997]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 13

The lichen fungus is typically a member of the Ascomycota rarely a member of the Basidiomycota. The algal or cyanobacterial cells are photosynthetic, and as in higher plants they reduce atmospheric carbon dioxide into organic carbon sugars to feed both symbionts. Both partners gain water and mineral nutrients mainly from the atmosphere through rain and dust. The fungal partner protects the alga by retaining water, serving as a larger capture area for mineral nutrients and, in some cases, provides minerals obtained from the substratum. If a cyanobacterium is present, as a primary partner or another symbiont in addition to green alga as in certain tripartite lichens, they can fix atmospheric nitrogen, complementing the activities of the green alga.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 14

Two bacteria found to be very useful in genetic engineering experiments are [1998]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 14

Escherichia and Agrobacterium are both used as vectors in genetic engineering. Nitrobactor converts nitrites to nitrates. Azotobacter is a free living nitrogen fixing bacteria. Nitrosomonas converts ammonia to nitrite. Rhizobium is a symbiotic nitrogen fixing bacteria living in the root nodules of  leguminous plants Diplococcus pneumoniae causes pneumonia.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 15

The main role of bacteria in the carbon cycle involves [1998]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 15

Bacteria acts as decomposers in the carbon cycle.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 16

A few organisms are known to grow and multiply at temperatures of 100–105ºC. They belong to [1998]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 16

These are archaebacteria  which can tolerate high temperature.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 17

 Transfer of genetic information from one bacterium to another in the transduction process is through [1998]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 17

Transfer of genetic information from one bacterium to another by physical contact is called conjugation while if it takes place by some other medium like virus than it is called transduction.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 18

Puccinia forms [1998]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 18

Puccinia causes black rust of wheat . It completes  its life cycle in two hostswheat and barberry. Two types of spores are produced on  wheat - uredospores and teleutospores. 

Test: Biological Classification 5 - From Past 28 Years Questions - Question 19

Which one of the following micro-organisms is used for production of citric acid in industries?

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 19

Aspergillus niger is known as guinea pig of kingdom fungi. The main source of commercial preparation of citric acid is the fermentation of sugar with Aspergillus niger.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 20

Yeast  Saccharomyces cerevisiae is used in the industrial production of [1998]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 20

Yeast performs alcoholic fermentation because of enzyme ‘Zymase’. It is used in the production of ethyl alcohol or ethanol.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 21

Due to which of the following organisms, yield of rice has been increased ? [1999]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 21

Azolla is a freshwater fern harbouring a bluegreen alga - Anabaena in its leaf cavities. The alga fixes atmospheric nitrogen and releases nitrogenous compounds in leaf cavities. This symbiotic system is the main source of algal biofertilizer in rice fields. When rice paddies are flooded in the spring, they can be inoculated with Azolla, which then quickly multiplies to cover the water, suppressing weeds. As the plants die, they contribute nitrogen to the rice plants, and as the rice paddy dries out, the Azolla all eventually die, making an exceptional green manure.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 22

Photosynthetic bacteria have pigments in [1999]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 22

Chloroplasts, chromoplasts and leucoplasts are the types of plastids found in higher plants. Chloroplasts contain the green pigment chlorophyll. Chromoplasts contain coloured pigments. Leucoplasts are colourless and store starch granules.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 23

In prokaryotes, the genetic material is [1999]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 23

In prokayotes nucleoid consist of double stranded circular DNA without histone protein.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 24

A good green manure in rice fields is [2000]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 24

Aspergillus is a fungus, Mucor is also a fungus. Azolla harbours blue-green algae Anabaena which fixes N2, increasing fertility.

Test: Biological Classification 5 - From Past 28 Years Questions - Question 25

Enzymes are absent in [2000]

Detailed Solution for Test: Biological Classification 5 - From Past 28 Years Questions - Question 25

Enzymes are absent in viruses because they are unable to transmit their nucleic acid from one host cell to another.

Use Code STAYHOME200 and get INR 200 additional OFF
Use Coupon Code
Information about Test: Biological Classification 5 - From Past 28 Years Questions Page
In this test you can find the Exam questions for Test: Biological Classification 5 - From Past 28 Years Questions solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Biological Classification 5 - From Past 28 Years Questions, EduRev gives you an ample number of Online tests for practice