Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
sample question papers for class 11 students. If you want more of every subject then dm me on my Instagram i will definitely reply you in 24 hours.
Typology: High school final essays
1 / 67
This page cannot be seen from the preview
Don't miss anything!
७०८ सदाशिव पेठ, कुमठेकर मार्ग, पुणे ४११०३० संपकग क्रमांक (020) 2447 6938 E-mail: [email protected]
Question no.
Question Marking scheme
Chapter No.
Page No.
1 The outer layer of pollen grain is thick and made up of complex ,non- biodegradable substance called as………………….
A. lignin B. cellulose
C. pectin
D. Sporopollenin
Correct answer 1 mark
2 Sporoderm is made up of …………. A. exosporium and endosporium
B. outer integuments and inner integument
C. testa and tegmen D. exine and intine
Correct answer 1 mark
3 The number of meiotic and mitotic divisions necessary for development of female gametophyte in angiosperms is... A. 1 meiosis and 2 mitosis
B. 1 mitosis and 3 meiosis C. 1 meiosis and 1 mitosis
D. 1 meiosis and 3 mitosis.
Correct answer 1 mark
4 Identify the odd one with respect to pollinating agent.
A. Baobab B. Bottle brush
C. Kadamb D. Sausage
Correct answer 1 mark
A. castor
B. pea C. mango
D. bean
Single sentence answers Key word in answer
1 Why anther is called as tetrasporangiate structure?
Presence of four pollen sacs in dithecus anther
2 At which stage pollen grains are shed from the anther in Angiosperms?
Bicelled stage 1 4
3 What is hilum with respect to ovule? Place of attachment of funiculus with main body of ovule.
4 What is protandry? Condition where androecium matures earlier the gynoecium
5 Name any one plant in which double fertilization was discovered?
Fritillaria or Lilium
6 Why fertilization process in angiosperms is called as double fertilization?
Both male gametes are used.
7 Which is the most common type of endosperm in angiospermic families?
Nuclear type 1 11
8 What is the role of suspensor during the development of embryo?
Pushes embryo into the endosperm
9 What is adventive polyembryony? Embryo develops from somatic cells or integuments
10 Name the hormone produced by unfertilised ovary responsible for enlargement of ovary into fruit.
Indole - 3 acetic acid / auxins
2 marks
1 Draw a well labelled diagram of T.S. anther.
Four correct labels ½ mark each
2 Describe the structure of pollen grain.^ Wall layers, ploidy and fate of pollen grain.
Formation through meiosis.
Each point ½ mark
3 Draw a well labelled diagram of male gametophyte of angiosperms.
Diagram- 1 mark,
Any two correct labels (male gamete, tube nucleus and pollen tube) ½ mark each.
4 Describe the structure of female gametophyte of angiosperms.
4 points ½ mark each
5 Mention various adaptations for wind pollination.
Any four points
½, mark each.
6 What are the different adaptations shown by bird pollinated flowers?
Any four points ½ mark each
7 Explain heterostyly and herkogamy with suitable example.
Meaning ½ mark and example ½ mark each.
8 Give the significance of double fertilization.
Any four points, ½ mark each
9 Mention significance of fruit and seed formation.
Two points 2 marks
10 Give an account of polyembryony. Meaning-1/ mark
Reason-1/ mark
10 Explain various categories of apomixis. 1 mark each type
4 marks
1 Describe the structure of anatropus ovule with the help of labelled diagram.
Structure - 2 marks
Diagram with four correct labels - 2 marks
2 Describe the development of female gametophyte of angiosperms with the help of diagram.
Process upto 7 celled 8 nucleate stage - 2 marks Sequential diagrams - 2 marks
3 Give an account of various abiotic agencies used in pollination along with their adaptations for pollination.
2 marks for each agency
4 Give an account of pollen pistil interaction in detail.
Meaning- 1 mark
Recognition of pollen and germination – 1 mark significance- 1 mark
5 Describe the process of double fertilization in angiosperms and add a note on its significance.
Process- 2 marks Significance ( two points) - 2 marks
Question no.
Question Marking scheme
Chapter No.
Page No.
1 The primary sex organ in human males is A. prostate gland
B. seminal vesicle C. penis
D. testis
Correct answer 1 mark
2 Seminal fluid is ------- in nature. A. acidic
B. neutral C. sugary
D. alkaline
Correct answer 1 mark
3 Which of the following is not a part of uterus?
A. body
B. cervix C. fundus
D. cornua
Correct answer 1 mark
4 Meanrch, menstrual cycle and menopause are controlled by-----
A. thyrotropic hormone B. gonadotropic hormone
C. somatotropic hormone D. corticotropin
Correct answer 1 mark
5 Nebenkern is ---------
A. acrosome of sperm B. neck of sperm
C. middle piece of sperm D. mitochondrion of sperm
Correct answer 1 mark
2 What is glans penis? Swollen tip of externa genitalia or penis
3 What is atresia with respect to ovary in human females?
Large scale destruction of primordial follicles.
4 Name the hydrolytic enzyme secreted by the acrosome.
Hyluronidase 2 29
5 What is morula? 16 - 32 celled stage develops during cleavage
6 What is the function of inner cell mass? Embryo proper develops form these cells
7 Name the embryonic layer from which heart, blood and blood vessels develop.
Mesoderm 2 35
8 Identify the permanent birth control method in given diagram.
Tubectomy 2 41
9 What is the use of tablet ‘Saheli’? Oral contraceptive pill
10 Identify the IUD in the given diagram. Lippes loop 2 15
2 marks
1 Draw a well labelled diagram of L.S. human testis.
Four correct labels-½ mark each
2 Describe the structure of Graafian follicle. Four correct points - Each point ½ mark
3 Write a short note on fallopian tube.^ Three correct parts-1 and ½ marks
Any one function-1/ mark
4 Give an account of external genitalia in human females.
Any four parts- ½ mark each
5 Explain the structure of secondary oocyte. Any four points
½, mark each.
6 Write an account of cleavage during embryonic development in humans.
Any four points with morula stage-½ mark each
7 Identify the parts labelled in the given diagram.
Each label-1/ mark
8 What is lactation? Which hormone is responsible for its regular secretion?
Two correct points - 1 mark each
9 Mention any two different goals of RCH programme.
Two correct points-1 mark each.
iii) The organ which secretes hormone in second trimester is…
8 Explain the process of parturition. Correct explanation of three stages- 1 mark each
9 Explain any three measures to achieve goals of RCH.
Any three correct methods-1 mark each.
10 Explain any three methods that can be used to overcome infertility.
Any three methods-1 mark each
4 marks
1 Write an account of seminal vesicle and bulbourethral gland in male reproductive system.
Three correct points-1 and ½ marks
Any one function-1/ mark For each gland
2 Explain ovarian cycle with its different phases.
Four phases- 1 mark each
3 Describe the process of spermatogenesis with the help of diagram.
Three stages- 3 marks
Diagram with two correct labels-1 mark
4 Explain mechanism of fertilization in humans.
Movement of sperm- 1 mark
Entry of sperm- 1 mark
Activation of sperm-1 mark
Syngamy 1 mark
5 Write in detail any four temporary methods of birth control.
Any four method with correct explanation - 1 mark each.
Question no.
Question Marking scheme Chapter No.
Page No.
MCQ
1 The three principles of Mendelism are A. Dominance, segregation and independent assortment B. Linkage, segregation and independent assortment
C .Linkage, dominance and segregation D. Linkage, dominance and
Independent assortment.
Correct answer – 1mark
2 Which one of the following is back^ cross? A. F1 × F B. F1 × Recessive parent
C. F1 × Dominant parent
D. F1 × Any parent
Correct answer – 1mark
3 RR (Red) Antirrhinum is crossed with white (WW) one. Offspring (RW) are pink .This is an example of A. Dominant - recessive
B. Incomplete dominance C. Hybrid
D. Supplementary genes
Correct answer – 1mark
4 The word chromosome was coined by A. Benda
B. Waldeyer C. Robert Hooke
D. T.H.Morgan
Correct answer – 1mark
Single sentence answers Key word in answer
1 Define inheritance.^ Transmission of characters from generation to generation
2 What is allelomorph? Alternating forms of genes
3 What is test cross?^ Cross between F plant and its recessive parent
4 Define euploidy.^ Chromosome number in a cell is exact multiple of primary basic number.
5 Give on example of complete linkage. X- chromosome of Drosophila male.
6 How many linkage groups are present in Drosophila melanogaster?
4 linkage groups 3 59
7 Which genes show straight inheritance? Y-linked genes 3 62
8 How drones are produced in honey bees? Parthenogenetically .
9 What is the reason for 21st^ trisomy? Non disjunction or failure of separation of chromosomes or autosomes during gametogenesis.
10 Give the example of X- monosomy you have studied.
Turner’s syndrome. 3 67
2 marks
1 Discuss any two points due to which Mendel got success in his experiment?
1 mark each 3 49/
50
2 Give any two points of difference between homozygous and heterozygous.
1 mark each. 3 50
3 Explain test cross with suitable example and state its ratios.
Representation of cross- 1 mark
Ratio( phenotypic and genotypic) - 1 mark
4 Give an account of incomplete dominance with suitable example.
Representation of cross- 1 mark
Ratio( phenotypic and genotypic) - 1 mark
5 Explain codominance in colour coat in cattle with checker board method.
Representation of cross- 1 mark
Ratio( phenotypic and genotypic) - 1 mark
6 Write an account of chromosomal theory of inheritance.
Four correct points
7 Write a note on sex linkage. Complete sex linkage – 1 mark Incomplete sex linkage - 1 mark
8 Differentiate between complete and incomplete linkage.
Two correct points- 2 marks
9 Explain mechanism of sex determination in birds.
Correct explanation
10 Give detail account of thalassemia. Correct explanation
Two points-1 mark
Symptoms any two- 1 mark
Any four symptoms-2 marks
4 marks
1 Define inheritance. Give statements for various laws of inheritance.
Definition- 1 mark Statements for 3 laws- 1 mark each
2 Explain intragenic and intergenic interaction with the help of example.
Intragenic interaction any one example from incomplete dominance or codominance- 2 marks Intergenic interaction- Pleiotropy- 2marks
3 Explain structure of chromosomes with labelled diagram.
Structure- 2 marks Diagram with any four correct labels- 2 marks
4 Give detail account of sex linked inheritance.
Definition- 1 mark
X-linked inheritance- 1 mark
Y-linked inheritance- 1 mark
5 Give an account of one Mendelian and one chromosomal disorder you have studied.
Mendelian disorder Thalassemia- Explanation-1 mark Symptoms-any two- 1 mark Chromosomal disorders:- Down’s syndrome/ turner’s syndrome/ Klinfelter’s syndrome- any one Explanation- 1 mark Any two symptoms-1 mark
Question no.
Question Marking scheme Chapter No.
Page No.
MCQ
1 Find the odd one out:
A H 2 A B H 3
C H 2 B D H 1
2 What happened when heat killed S-cells along with live R-cells were injected into mice?
A Mice died and showed live S-cells B Mice survived and showed live S-cells
C Mice died and showed live R-cells D Mice died and showed dead R-cells
3 Find out the double ring compound :
A Adenine B Uracil
C Cytosine D Thymine
4 If a DNA has 20 Adenine and 30 cytosine bases. What will be the total number of purine bases in the given sample? A 20
B 50 C 30
D 100
5 Semiconservative mechanism of DNA was detected using: A 35 S
B 14 C C 32 P
