Smt. P.A.Sodha Sarvajanik Marathi High School & Haji Ahmedji Musaji Vhora Junior College, Navapur Tal. Navapur Dist. Nandurbar
First Semester Exam 2019-20
Marks : 50 Time: 02.30 Hrs.
Std.: XI (Science) Date: 17/10/2019
Subject: Biology
General Instructions:
01. All Sections are compulsory.
02. Write each section on separate page.
03. Figures to right indicate full marks.
SECTION: A. 7.
Q. No. 01 Select and Write the correct answer.
i )In mitochondria DNA is...........
(a) Naked
(b) Double stranded
(c) Circular
(d) All of the above
ii) Which of the following is incorrect in case of birds?
(a) Presence of scales
(b) Presence of teeth
(c) Nuckated RBCs
(d) Hollow bones.
iii) A characteristic of Angiosperm is.....
(a) Double vasculare bundles
(b) Radiall vascular budles
(c) Double fertilization
(d) Seed formation
iv) In Bryophytes....................
(a) Sporophyte and gametophyte generation are independent.
(b) Gametophyte is dependent upon Sporophyte.
(c) Sporophyte is partially dependent upon gametophyte.
(d) Diplontic life cycle. Select odd one out for Heterotrophic bacteria.
v) Paramoecium: Ciliated Protist
(a) Nitrogen fixing bacteria
(b) Eubacteria
(c) Methanogens
(d) Antibiotic production
vi) Plasmodium : ...........
(a) Amoeboid protozoan
(b) Ciliophora
(c) Sporozoan
(d) Flagellate protozoan
vii) Plasma membrane is fluid structure due to presence of............
(a) Carbohydrates
(c) Lipid
(b) Glycoportein
(d) Polysaccharide
Q. No. 02. Answer the following in ONE sentence (Very Short Answer). 7
i) Is nucleous covered by membrane?
ii) Plants have no circulatory system! Then how cells manage intercellular transport? iii) Normal human cell consist of how many number of Chromosomes?
iv) What is taxidermy?
v) Which phylum is suppose the connecting link between chrodata and non-chordata?
vi) Give the scientific name of Sunflower.
vii) Give any one example of Phaeophyceae.
SECTION B. 16
Attempt any EIGHT of the following
Q.No.3.Complete the following.
(a) Plant like Protista..........................
(b) Endo parasite..................................
Q.No.4.Draw a Well labelled diagram of Prokaryotic cell.
Q.No.5.Explain the rules of Binomeal Nomenclature classification.
Q.No.6.Complete the following chart.
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Q.No.7.Match the Following
(1) Amyloplast (a) Carotene
(2) Elaioplast (b) Proteins
(3) roplast. (c) Oil
(4) Chromoplast (d) Starch
Q.No.8.Define Histology and name four types of tissues present in animals.
Q.No.9.Explain any two animal body plan with suitable example.
Q.No. 10.Give Different features of Bryophyta, why they are called Amphibians?
Q.No.11.What is totipotency? Which cells have great medical applications including cure for diseases.
Q. No. 12 Differentiate between Mitosis and Meiosis.
Q. No. 13 Write different characters of Phylum - Porifera.
SECTION : C. 12
Attempt any FOUR of the following
Q. No. 14 Describe the structure of cell organell, which is supposing the
powerhouse of cell with suitable diagram.
Q. No. 15 Write a short note on Viruses.
Q. No. 16 What is cell theory? Discuss the postulates of modern cell theory..
Q. No. 17 Why Lichens are considered as a indicators of pollution?
Q. No. 18 Differentiate between plant cell and animal cell.
Q. NO. 19 Write structure function & location of any one type of animal tissue.
SECTION : D 8
Attempt any TWO of the following
Q. No. 20 What is epithelial tissue? Explain any two types of simple epithelium tissues.
Q. No. 21 Describe ultra structure of nucleus with suitable diagram.
Q. No. 22 Write salient features of five kingdoms system of classification.
Q. No. 23 Which are the basic principles of life?
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