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Daily Practice Problems
Class 11 Biology
Biological Classification
daily practice problem

Question 1:

Choose the correct options:

1. Protozoans are classified on the basis of:

(a) their mode of nutrition

(b) their mode of reproduction

(c) their mode of locomotion

(d) All of the above

 

2. To which among the following kingdoms do viruses belong?

(a) Monera

(b) Protista

(c) Animalia

(d) None of the above

 

3. All prokaryotic unicellular organisms belong to which kingdom?

(a) Monera

(b) Protista

(c) Fungi

(d) Animalia

 

4. Who proposed Contagium vivum fluidum?

(a) Robert Hook

(b) D.J. Ivanowsky

(c) Stanley

(d) Beijerinek

 

 

Question 2:

Name the following:

1. The kingdom which comprises of organisms that synthesise their own food.

2. The reserve food material in animals.

3. The group of fungi that lack sexual phase in their life cycle.

4. The term given to the fungal component of the Lichens.

5. The smallest living organisms that completely lack a cell wall.

 

Question 3:

Fill in the blanks with appropriate words:

1. The bacteria that thrive in hot springs are called ___________.

2. The walls of diatoms are embedded with __________ which makes them indestructible.

3. The type of sexual reproduction seen in fungi where the gametes formed are morphologically similar is called __________.

4. __________ is an example of a parasitic plant.

5. The capsid is made up of a number of small units called __________.

 

Question 4:

Complete the given analogies by observing the relation between the first two words and then filling an appropriate word at the fourth place:

1. Salty areas : Halophiles :: Marshy areas : __________

2. Paramoecium : Ciliated protozoan :: Plasmodium : __________

3. Two kingdom classification : Carl Linnaeus :: Five kingdom classification : __________

4. Fusion of protoplasm : plasmogamy :: Fusion of nuclei : __________

5. Fungal partner : mycobiont :: Algal partner : ___________

Question 5:

Who proposed the Two Kingdom system of classification? What were its limitations?

 

Question 6:

Define the following terms:

1. Mycorrhiza

2. Dikaryon

3. Red tides

4. Ascocarps

5. Algal blooms

 

Question 7:

Match the columns A and B.

             Column A

Column  B

1. Rhizopus

  a. Chief producers in oceans

2. Gonyaulax

  b. Deuteromycetes

3. Chryosophytes

  c. Lacks cell wall

4. Mycoplasma

  d. Red tides

5. Imperfect fungi

  e. Phycomycetes

 

Question 8:

State whether the following statements are true or false.

1. Ascomycetes belong to kingdom Monera.

2. Dikaryophase is seen in kingdom Fungi.

3. Mad cow disease is caused by viroids.

4. Viruses can be crystallised.

5. Plasmodium is a parasitic protozoan which has cilia as its locomotory organ.

 

Question 9:

With the help of a flow chart make an outline of the five kingdom classification.

 

Question 10:

List down any four characteristics of Kingdom Monera.

 

Question 11:

What are heterocysts? Name any two organisms in which they are found.

 

Question 12:

What is meant by ‘diatomaceous earth’?

 

Question 13:

Briefly describe the major groups of protozoans.

 

Question 14:

Which group of Kingdom Fungi is called the “imperfect fungi” and why? Give any two characteristics of this group.

 

Question 15:

Give any two examples from kingdom Plantae which are not autotrophs.

 

 

Question 16:

Viruses are considered as the connecting link between living and non-living world. Give reason, why?

 

Question 17:

What are prions? Name any two diseases caused by them.

 

Question 18:

Briefly explain what are viroids? Who discovered them?

 

Question 19:

Write a brief note on ‘Lichens’.

 

Question 20:

List any four advantages of the five kingdom classification system.

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