Showing posts with label NCERT EXEMPLAR. Show all posts
Showing posts with label NCERT EXEMPLAR. Show all posts

Tuesday, October 6, 2020

PLANT KINGDOM NCERT EXEMPLAR 11TH CLASS BIOLOGY ADDA BY KAIBALYA

                        Hii, this is Kaibalya Nayak from Biology Adda by Kaibalya , going to share mcq of ncert exemplar Plant kingdom 11th class chapter which is important for exams like NEET, ICAR , BOARDS, STATE CET etc. Let's start the topic.

1.Cyanobacteria are classified under

   A)Monera

   B)Plantae

   C)Protista

   D)Algae

Ans -  A)Monera

2.Fusion of 2 motile gamets which are dissimilar in size is termed as -

A)Oogamy

B)isogamous

C)Anisogamous

D)Zoogamy

Ans - C)Anisogamous

3.Holdfast,stipe and frond constitute the plant body in case of 

A)Rhodophyceae

B)Chlorophyceae

C)Phaeophyceae

D)All

Ans - C)Phaeophyceae

4.A plant shows thallus level of organisation. It shows rhizoids and is halploid . It needs water to complete it's life cycle beacause male gamets are motile. It may belong to-

A)Pteridophyte

B)Gymnosperm

C)Monocots

D)Bryophyte

Ans - D)Bryophyte

5. A prothallus is -

A) a structure in pteridophyte formed before the thallus develop

B)A sporophytic free living structure formed in pteridophyte

C)A gametophyte free living structure formed in pteridophyte

D)A primitive structure formed after fertilization in pteridophytes

Ans - C)A gametophyte free living structure formed in pteridophyte

6.Plants of this group are diploid and well adapted to extreme conditions. 

they grow bearing sporophylls in compact structure called cones. the group in reference is -

A)Monocots

B)Dicots 

C)Pteridophyte

D)Gymnosperm

Ans - D)Gymnosperm

7. The embryo sac of an angiosperm is made up of 

A)8 cells

B)7 cells 8 nuclei

C)8 nuclei

D)7 cells 7 nuclei

Ans - B)7 cells 8 nuclei

8. If the diploid number of a flowering plant is 36. What would be the chromosome number in its endosperm?

A)36

B)18

C)54

D)72

Ans - 54

9. Protonema is -

A) Halploid , found in mosses

B)Halploid , found in pteridophyte 

C)Diploid , found in pteridophyte

D)diploid found in liverwort

Ans - A) Halploid , found in mosses

10. The giant redwood tree (sequoia sempervirens) is a-

A)angiosperm

B)Free fern 

C)Pteridophyte

D)Gymnosperms

Ans - D)Gymnosperms

GOOD LUCK. HAVE A NICE DAY😇


Monday, October 5, 2020

Reproduction in Organism 12 th class biology DPP Biology Adda by Kaibalya

 Hii this is Kaibalya Nayak from Biology Adda by Kaibalya going to discuss some DPP with you on this chapter it includes Previous year questions and important question from different books. Let's Go . All the best.

1. Isogamous condition with nonflagelleted gametes is found in -

     (a) Volvox

     (b)Spirogyara

     (c)Fucus

     (d)All of the above

Ans - answer is B it's spirogyara produce non-flagelleted gamets but similar in size.

2. In Ginger vegetative propagation occurs through 

    (a)Runner

    (b) Rhizome

    (c)offset

   (d) Bulbils

Ans - Answer is B . Rhizome is underground perennial stem buds present the notes take part in formation of new ariel shoot.

3. Sexual reproduction generally produces- 

   (a) Parthenocarpy

   (b)New genetic variation 

   (c)Larger  biomas

   (d)Longer viability of seeds

Ans - Answer is b . New genetic variation.

4.Correctly matched

    (a)chlmydomonas   -    conidia

    (b)Yeast  -   Zoospores

    (c) Onion - Bulb 

    (d)Ginger  - Rhizome

Ans - Ans is C . Onion and Bulb is correctly matched.

5.No natural death in single celled organisms 

   (a)cant reproduce sexually

   (b)reproduce by binary fission

   (c)parent body is distributed among offsprings

   (d)They are microscopic

ans -  (c)parent body is distributed among offsprings

6._______ species flowers only once in life time.

   (a)Bamboo species

   (b)Jackfruit

  (c)Papaya

  (d)apple

Ans - (a)Bamboo species

7. Female gametes develops into an embryo without fertilisation this is called

     (a)Autogamy

     (b)Triple fusion

     (c)Syngamy

    (d)Parthenogenesis

ans -  (d)Parthenogenesis

8. The number of chromosomes in shoot tip cell of a zea mays is 20. The number of chromosomes in the microspore mother cell of the same plant shall be

    (a)20

    (b)10

    (c)15

    (d)40

Ans -  (a)20

9.Types of reproductiondepends upon

    (a)Habitat

    (b)physiology

    (c)Genetic makeup

    (d)All the above

Ans -   (d)All the above

10. Banana reproduce by 

     (a)Rhizome

    (b)offset

    (c) conidia

    (d)All

Ans - (a)Rhizome

                 

            Enjoy this questiom another part will be released soon. Good Luck

Sunday, October 4, 2020

BIOLOGICAL CLASSIFICATION NCERT EXEMPLAR 11 TH CLASS MCQ BIOLOGY ADDA BY KAIBALYA

 BIOLOGICAL CLASSIFICATION

1. All eukaryotic unicellular organisms belong to-

     (a)Monera

     (b)protista

     (c)Fungi

     (d)Bacteria

ANS - Protista (B)

2. Five kingdom classification was proposed by

    (a) RH Whittaker

    (b) C Linnaeus

    (c)A Roxberg

    (d)Virchow

ANS - R H Whittaker

3. Organism living in salty areas

   (a) Methanogens

   (b) Halophiles

   (c)Heliophyte

   (d)Thermacidophiles

ANS - Halophiles(B)

4. Naked cytoplasm , multinucleated and saprophytic are the characteristics of 

  (a)Monera

 (b)Protista

 (c)Fungi

 (d)slime mould

ANS - Slime mould (D)

5. An association between roots of higher plant and fungi is called

  (a)Lichen

  (b)Fern

  (c)Mycorrhiza

  (d)BGA

ANS- Mycorhiza C

6. A dikaryon is formed when

  (a) Meiosis is arrested

 (b) The 2 haploid cells do not fuse immediately

 (c)Cytoplasm doesnot fuse

 (d)NONE

ANS -(D) NONE

7. Contagium vivum fluidium was proposed by

   (a)D J Ivanowsky

   (b) M W Bejernik

   (c)Stanley

   (d)Robert Hooke

ANS - M W Beijernik B

8. Association between mycobiont and phycobiont are found in 

  (a) Mycorrhiza

  (b)Root

  (c)Lichens

  (d)BGA

ANS - Lichens C

9. Difference between virus and viroid is 

  (a)Absence of protein coat in viroid but present in virus

  (b) presence of low molecular weight RNA in virus but absent in viroid

 (c) Both A and B

 (d) none

ANS - Absence of protein coat in viroid but present in virus( A)

10. With respect to fungal sexual cycle choose the correct sequence of events

 (a)Karyogamy ,plasmogamy and meiosis

 (b) meiosis,  plasmogamy, Karyogamy

 (c) plasmogamy, Karyogamy,  meiosis

 (d)meiosis, Karyogamy ,plasmogamy

ANS -  (c) plasmogamy, Karyogamy,  meiosis

11. Virus are noncellular organism but replicate themselves once they infect the host cell. To which of the following kingdom do virus belong to 

  (a)monera

  (b)protista

 (c)fungi

 (d)none

ANS -  (d)none

12. Member of phycomycets are found in 

(i)Aquatic habitats

(ii)On decaying wood 

(iii)Moist and damp place

(iv)As obligate parasite on plant

CHOOSE  FROM  THE FOLLOWING OPTION

(a)NONE

(b)i and iv

(c) ii and iii

(d) all

ANS - (d) all


Hii this is Kaibalya Nayak from biology adda by kaibalya sharing ncert exemplar biology questions of biological classification. ALL THE BEST.

Saturday, October 3, 2020

THE LIVING WORLD - NCERT EXEMPLAR MCQ 11 TH CLASS BIOLOGY

 1) As we go from species to kingdom in a taxonomic hierarchy the number of common characteristics 

  (a) will decrease

  (b)will increase

  (c) will remain same

  (d) may increase or decrease

Ans - from species to kingdom common characterstics decreases(A). NCERT PG NO 8

2) Which of the following suffixes used for units of classification in plants indicates a taxonomic category of ''family' ?

   (a) -Ales

   (b) -Onae

   (c)-Aceae

   (d)-Ae

ANS- ITS aceae (c) ncert 1.1 Table

3)The term systematics refers to

   (a) identification and study of organ system

   (b)identification and preservation of plants and animal

   (c)diversity of kinds of organism and their relationship

   (d) study of habitats of organism and their classification

Ans - C Diversity of kinds of organism and their relationship

4) Genus represents

  (a) an individual plant or animal

  (b)collection of plant and animal

  (c)group of closely related species and their relationship

  (d)study of habitats of organism and their classification 

ans - c closely related species and their reltionship

5)Taxonomic unit phylum is equivalent to

  (a)class

  (b)order

  (c)division

  (d)family

ans- Division C

6)Botanical gardens and Zoological parks have

  (a)collection of endemic living species only

  (b)collections of exotic living species only

  (c)collection of both endemic and exotic

  (d)collection of only local plants and animals

Ans - collections of boh endemic and exotic

7)Taxonomic key is one of the taxonomic tools in the identification and classification of plant and animal. It is used in the preparation of 

  (a)monograph

  (b)flora 

  (c) both a and b

  (d) none

Ans- Both a and b

8)All living organism are linked to one another beacause

  (a)They have common genetic material of the same type

  (b)They share common genetic material but to varying digree

  (c)All have common cellular organistion

  (d)All the above

Ans- They share common genetic material but to varying digrees(B)

9)Which of the following a defining characteristic of living organisms ?

  (a)Growth

  (b)ability to make sound

  (c)reproduction

  (d)response to external stimuli

Ans- Response to stimuli(D)

(10) A family               I Tubersum

       B kingdom           II polynomials

       C Order               IIISolanum

      D species             iv plantae

      E genus               V Solanaceae

(a) i-D ii-C iii-E iv-B v-A

(b)i-E ii-D iii-B iv-A v-C

c)i-D , ii-E , iii-B , iv - A v-c

(d)i-E ii-C iii-B iv- A v-D

ans - A


HII THIS IS KAIBALYA NAYAK FROM BIOLOGYADDA BY KAIBALYA SHARING QUESTIONS OF 11 TH CLASS NCERT BIOLOGY EXEMPLAR THAT IS THE LIVING WORLD. ALL THE BEST.

  

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