CET BIOLOGY

1st and 2nd PUC Biology practicals M.SUBRAMANYA KUMBAR,M.Sc,M.Phil.

Lecturer in Biology, Govt.Pre-University College 7th main,Srirampuram,Bangalore-560021

1. The usual objective lens used in compound microscope are

1)5X,10X,15X 2)10X,20X,30X

3)15X,25X,35X 4)10X,45X,100X

2. The condenser diaphragm of compound microscope helps.

1)To condense the beam of light falling upon the object.

2)Controls the diamemeter of an aperture of an aperture through which the beam of light passes.

3)In controlling the intensity of illumination available inside the microscope.

4)In directing the beam from the source of light in any direction on to the stage.

3. Study statement A and B and select the correct correlation between the two.

Statement A= During Anahase stage of mitotic cell division, the chromosomes have been separated into two groups and taken towards the opposite poles of the cell

Statement B= During Telophase stage ,the cell shows two nuclei, one at each pole.

1) Both statements are correct and B is the reason for A.

2) Both statements are correct and A is the reason for B.

3) Statement A is correct and A is not the reason for B.

4) Statement A is wrong and statement B is correct.

4.Pedicellate,hetrochlamydeous,gamopetalous,epitalous and sagittate anthers, bicarpellary , apocaspons ovary with rattle shaped stigma are observed in the family of angiosperms is.

1)Malvaceae. 2)Musaceae.

3)Apocynaceae. 4)Polypodiaceae.

5. Which one of the following is not a type under racemose type of Inflorescence.

1)Spike. 2)Spadix.

3)Capitullum. 4)Hypanthodium.

6. Match the organisms listed under column I with their respective phyla given under column II ,chose the answer which gives the correct combination of alphabets.

Column I (Organisms)

Column II (phyla)

A Paramoecium p Annelida B Hydra q Arthropoda C Scorpion r Echinodermata D Starfish S Coelenterata E Earth worm t Protozoa

1) A=p B=q C=r E=t 2)A=p B=t C=q D=r E=s

3)A=t B=s C=q D=r E=s 4)A=q B=p C=r D=s E=t

7. Identify the correct choice on the below two statements

Statement A :- Bat(Cyanopterus) consist of a echolocation apparatus which act as a radar.

Statement B :- Bats can fly even in complete darkness, avoiding minute- obstacles.

1)Statement ‘A’ is correct and statement ‘B’ is wrong.

2)Both statement are correct and ‘A’ is the reason for ‘B’.

3)Both statements are correct and ‘A’ is not the reason for ‘B’.

4)Statement ‘A’ is wrong and statement ‘B’ is correct.

8.Choose the correct statement with reference to amphibians.

1)poikilothermic animals with monocondylar skull

2)poikilothermic animals with bicondylar skull

3)homeothermic animals with monocondylar skull

4)homeothermic animals with bicondylae skull.

9.One of the following character belongs to cartilagenous fish.

1)gill clefts are not covered by operculum. 2)homocercal tail fin.

3)terminal mouth. 4)gill clefts are covered by operculum.

10. The chromosomes are most condensed in this stage of mitotic cycles.

1)metaphase 2)telophase 3)prophase 4)interphase

11. Cyanobacteria are

1)virus infecting blue green algae

2)cynaophycean members which which infect bacteria

3)autotrophic prokaryotes with characteristic blue green pigments.

4)Bacteria which infect cyanophycean algae.

12. Water is an essential factor for sexual reproduction in

1)Bryophytes 2)pteridophytes 3)monocots 4)gymnosperms

13. An apocarpus gynoecium is

1)five carpels fused 2)two or more free carpels

3)five or more carpels fused 4)single carpel.

14. Lady’s finger fruit belongs to the type called

1)pome 2)falsefruit 3)dry dehiscent fruit 4)caryopsis

15. The identification feature of flower of Malvaceae is

1)inferior ovary 2)presence of epicalyx 3)sagittate anthers 4)trilobed stigma

16. In the diagram L.S of flower of Musa paradisiaca different parts are indicated by alphabets.choose the answer in which these alphabets have been correctly matched with the parts they indicate.

1)A=Stigma,B=Anroecium,C=Perianth,D=Ovary

2)A= Tepal,B= Stamen,C= Thalmus,D= Style

3)A= Stamen,B= Thalmus,C= Tepal,D= Style

4)A=Stamen,B=Style,C=Tepal,D=Thalmus

17. Angiosperms differ from gymnosperms in having. 1)Presence of seeds 2)Presence of xylem 3)a flower 4)Presence of leaves

18. Which one of the following plants shows cercinate vernation.

1)Cycas 2)Mustard 3)Nephrolepis 4)Flower

19. The Nepenthes- an insectivorous plant, the plant part modified for insect

trapping is.

1)Stem 2)root 3)Leaf 4)Flower

20. Male Ascaris differ from female Ascaris in having

1)Shorter body 2)excretory pore 3)Unsegmented body 4)Elastic cuticle

21. Cartilagenous fishes have

1)Placoid scales 2)Cycloid scales 3)scutes 4)shields

22. In the diagram of the Aurelia given below. Certain parts have been indicated by

alphabets, choose the answer in which these alphabets have been correctly method with the parts which they indicate.

1)A=Gonads,B=Tentacle,C=Mouth,D=Oral arms

2)A= Tentacle,B= Gonads,C=Mouth,D=Oral arms

3)A= Mouth,B= Oral arms,C= Tentacle,D= Gonads

4) A= Oral arms,B=Mouth,C=Gonads, D= Tentacle

23. Find the mismatch

1)Nephridia-sensory organ 2)Flame cells-excretory organs

3)Parapodia-locomotory organ 4)Book lungs-respiration

24. The largest abdominal ganglion in the cockroach is in

1)6th segment 2)1th segment 3)7th segment 4)9th segment

25. The young ones are hatched from the egg of silk moth is.

1)caterpillar 2)pupa 3)tadpole larva 4)moth

26. The type of tissue present in the bundle sheath of the monocot stem is. 1)sclerenchyma 2)collenchyma 3)parenchyma 4)chlorenchyma

27. The vascular bundle that contains cambium is called. 1)Open vascular bundle 2)closed vascular bundle

3)radial bundle 4)conjoint bundle

28. Which one of the following plant is not having hypostomatic leaf.

1)Mustard 2)Hibiscus 3)coconut 4)periwinkle

29. The gas liberated from Hydrilla during photosynthesis is. 1)Carbondioxide 2)Carbon monoxide 3)Nitrogen 4)oxygen

30. In which one of the following tissue contains white fibres, yellow fibres and reticular fibres. 1)squamous epithelium 2)aerolar tissue 3)cardiac tissue 4)cartilage

31. The structural and functional unit of bone is. 1)osteon 2)ossein 3)volkman’s canal 4)canaliculi

32. Intercalated discs are found in. 1)Skeletal muscle 2)nerve cells 3)cardiac tissue 4) smooth muscle

33. A group of special cells present between the seminiferous tubules secrete androgens, they are 1)brunner’s glands 2)Leydig cells 3)Kuffer’s cells 4)crypts of lieberkuhn.

34. Biuret test is used to detect the presence____ in the sample. 1)carbohydrate 2)salivary amylase 3)albumin 4)fat

35. Which one of the following statement is not belongs to blastula of frog

1)spherical,hollow and single layered

2)Presence of three germ layers

3)blastocoels is present in the animal hemisphere

4)towards vegetal pole,yolky macromeres observed.

36. The connective tissue covering the liver is

1)peyer’s patch 2)Interstial cells 3)Cyton 4)Glisson’s capsule

37. In the diagram of the Graafian follicle, different parts have been indicated by alphabets, choose the answer in which these alphabets have been correctly matched with the part.

1)A=Cumulus oophorus B=Secondary Oocyte C=Zonapellucida D=Corona radiate

2)A= Secondary Oocyte B= Cumulus oophorus C=Zonapellucida D=Corona radiate

3)A= Zonapellucida B= Cumulus oophorus C= Secondary Oocyte D=Corona radiate

4)A= Corona radiata B=Secondary Oocyte C=Zonapellucida D= Cumulus oophorus

38. Which one of the following is not a primary germ layer 1)endoderm 2)mesoderm 3)ectoderm 4)endodermis

39. Certain cells in isobilateral leaf help in coiling and uncoiling of leaf depending upon climatic condition to reduce transpiration rate are 1)sclerenchyma 2)motor cells 3)tracheids 4) vessels

40. The T.S of dicot root picture shown has

1) Conjoint, collateral type of vascular bundle.

2) Radial arrangement of vascular tissues

3) Conjoint, collateral, open vascular bundle.

4) Conjoint, collateral, closed vascular bundle.