This is the blog where i will share my experience with biology like multiple choice questions , biology descriptions , long questions , biology tables and many more which is helpful for neet, boards and many competitive exams.
Saturday, December 26, 2020
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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