Full Marks-90
Group A
Question 1
(Answer all questions). 1x15=15
i) Select from the following the term that describes the movement in the leaves of sundew.
A) photonastic B) Thermonastic C) Chemonastic C) Seismonastic
ii) Find the hormone that is found in juice of tomato--
A) Auxin B) Gibberellin C) Cytokinin D) Florigen
iii) Identity the hormone popularly called the Maternity hormone.
A) Oestrogen B) Progesterone C) Prolactin D) Testosterone
iv) Choose that of mitosis during which the chromosomes are arranged on the equator of the cell-
A) Prophase B) Metaphase C) Anaphase D) Telephase
v) Identify the part from which fruit is formed after fertilization--
A) stigma B) ovary C) ovule D) Ovum
vi) The age from 11 to 19 years in human is called--
A) teenage B) adulthood C) adolescence C) Senescence
vii) Laws of heredity has been proposed by--
A) Lamarck B) Darwin C) Mandal D) Miller
viii) Calculate how many types of gametes are formed from Guinea pig having genotype Bbrr--
A) 1 B) 2 C) 4 D) 3
ix) Identify the nature of haemophilia--
A) sex linked dominant.
B) Autosomal dominant
C) Sex linked recessive
D) Autosomal recessive
x) select the propounder of the theory of "inheritance of acquired characters" from the following:
A) Lamarck B) Darwin C) Mendel D) Weisman
xi) Recollect from your memory the oldest Fossil of horse.
A) Pliohippus B) Merychippus C) Mesohippus D) Eohippis
xii) Determine the following the one which according to you is not a vestigal organ is
A) fingers of hand
B) Vermiform Appendix
C) Wings of ostrich
D) Coccyx
xiii) Identify the bacterium which you think convert nitrogenous wastes or dead bodies in to Ammonia.
A) nitrosomonas
B) Bacillus mycoides
C) nitrobactor D) Thiobcillus
xiv) Select out of the following the one which is not a chronic disease of lung.
A) Bronchitis B) Asthma C) Fever D) Lung Cancer
xv) Select from the following the one that is not in-situ conversation
A) national park B) Sanctuary C) Zoo D) Biosphere Reserve
Group B
Question 2
Answer 21 questions out of 26 questions given as below instructed. 1x21= 21
Fill in the blanks with proper words in the following sentences from (any five): 1x5= 5
i) ___ is secreted from islets of Langerhans of pancreas.
ii) According to you___ synthesis protein of the cell during cell division.
iii) Haemophilia father's daughter is always___of Haemophilia.
iv) Crocodile is considered to be advanced in evolution over the reptiles as it as a___ chamberd heart.
v) If you visit a place with the maximum biodiversity, you will be able to consider it to be___
vi) Due to requirement of resperine for treatment of high blood pressure, the___ plant is becoming extinct due to overuse.
Decide whether the following statements are true or false (any five):. 1x5=5
vii) If a person cannot see nearby objects in needs to use concave lens.
viii) In a base pairing Adenine bands to Thymine.
ix) Autosomes are responsible for sex determination in human being.
x) Darwin wrote the book "Origin of Species By Means of Natural Selection"
xi) Azotobacter is a denitrifying bacteria.
xii) Auxin helps in tropic Movement in plants.
Match the words in Column A to Column B
Column A
xiii) Ciliary locomotion
xiv) fragmentation
xv) Tt
xvi) wings of birds and butterflies
xvii) Singlila National Park
xviii) pollinating agent
Column B
a) honey bee
b) hybrid tall plants
c) analogous organ
d) Paramecium
e) Red panda
f) spirogyra
g) homlogous organ
Answer in a single word or in a single sentence (any 6): 1x6= 6
xix) Choose the odd one and write it:
STH, ACTH, ADH, GTH
xx) write one function of ganglion.
xxi) A pair of related terms is given below on the basis of the relationship in the first pair white the suitable word in the gap of 2nd pair
DNA: Thymine:: RNA: ____
xxii) what is the ratio of plants in F¹ generation when hybrid tall pea plant is crossed with pure dwarf one ?
xxiii) Determine the type of gametes that can be obtained from a female human being.
xxiv) How many air sacks are present in pigeon?
xxv) Among the following four terms one includes the other three. Find out the one term and write it-- Nitrogen cycle, Nitrification, Ammonifications.
Question 3
Answer any 12 question in 2-3 sentences out of 17 questions given below : 2x12= 24
i) How does cytokinin affect plant growth ?
ii) On the basis of the following points distinguish between axon and dendron:
a) structure
b) function
iii) State two purposes of locomotion.
iv) Explain how flexion and extension are opposite in action.
v) Name an animal and plant where reproduction occurs by budding.
vi) What do you mean by fertilization in plants?
vii) Explain how cross pollination is different from self pollination regarding use of pollinating agents and character of offspring produced
viii) "Male is considered as heterogametic sex" - justify the statement.
ix) If husband is normal and wife is carier of thalassemia, what may happen to their four children ?
x) Write down the law that Mendel inferred by performing the experiment on pure tall and pure Dwarf pea plant.
xi) Mention two significances of fossils in evolution.
xii) State the importance of airsacks of birds.
xiii) Why do you consider the following structure are important:
a) swim bladder in rohu fish
b) salt gland in Sundari plant.
xiv) Assess why SPM is harmful to human health.
xv) Name the biodiversity hotspots which lie in India.
xvi) Explain why Cryporeservation is so important for conserving endangered species.
xvii) JFM is helpful to protect, conserve and flourish our Forest Reserve - explain how.
Group D
(Long Answer Type questions)
Write the 6 questions or their alternatives given below. The mark allotted for each questions is 5.
( the division of make is 3+2, 2+3 or 5)
i) Draw a neat diagram of neutron and label the following parts:
a) Dendrite b) Axon c) Schwann cell d) Node of Ranvier. 2+3=5
OR
Draw a neat diagram of Anaphase of animal cell division and label the following parts--
a) Chromatid b) Centrosome c) Continuous fibre d) chromosomal fibre
ii) Write chemical composition of chromosome. "Amitosis is known as direct cell division" Explain with the help of an example. 2+3=5
OR
What do you understand by alternation of a generation ? Explain the phases of growth in living things.
iii) Why Mendel select pea plant for his experiment ? Explain incomplete dominance with a checker board.
OR. 2+3= 5
A patient has come with certain symptoms. How will you identify that he suffering from Haemophilia ? Write the name of organs affected in a thalassemic patient.
iv) Illustrate with diagram how the hearts of vertebrates explain the evolution theory. 2+3= 5
OR
what are the advantages of oval RBC in camel to live in dry desert condition ? How are analogous organs and homologous organs different from each other?
v) What is biomagnification ? Explain with suitable example how does it happen, in and aquatic food chain. 3+2= 5
OR
Analyse three major environmental problems of the Sundarbans with their impacts on biodiversity. Compare between Wildlife Sanctuary and Biosphere Reserve.
vi) Though Sundarban has been recognised as a Biosphere reserve it is gradually decreasing in size and facing some severe environmental problems. Elaborate upon this topic with suitable examples. 5
OR
Explain the following terms:
a) Acid rain
b) Global warming
c) Deafness
d) Endemic species
e) Poaching
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