MCQ Questions for Class 11 Biology: Ch 7 Structural Organisation in Animals

MCQ Questions for Class 11 Biology: Ch 7 Structural Organisation in Animals

1. Nasal granules in a nerve cell are now identified as
(a) Mitochondria
(b) Fat granules
(c) Cell metabolites
(d) Ribosomes
► (d) Ribosomes

2. Anaemia is caused due to deficiency of          
(a) Folic acid
(b) Vitamin B12
(c) Haemoglobin
(d) All of these
► (d) All of these

3. lnner lining of Blood vessels and heart is tesseleted  Epithelium. Which is
(a) Simple squamous due to wavy appearance
(b) Simple squamous due to tile like appearance
(c) Simple cuboidal due to wavy appearance
(d) Simple columnar Epithelium
► (a) Simple squamous due to wavy appearance

4. Non Keratinised stratified squamous epithelium is found in -
(a) Skin
(b) Stomach
(c) Oesophagus         
(d) Intestine
► (c) Oesophagus         

5. In rabbit, hairs and most of the glands are developed from
(a) Epidermis
(b) Dermis
(c) Subcutaneous layer
(d) Reticular layer
► (a) Epidermis

6. Pavement epithelium is the name of:
(a) Cuboidal epithelium
(b) Squamous epithelium
(c) Columnar epithelium
(d) Ciliated epithelium
► (b) Squamous epithelium

7. The epithelium involved in diffusion is
(a) Squamous epithelium
(b) Columnar epithelium
(c) Cuboidal epithelium
(d) Ciliated columnar epithelium
► (a) Squamous epithelium

8. The part of dermis is mainly composed of
(a) Fibrous connective tissue
(b) Elastin proteins
(c) Nerve fibres and receptor
(d) Blood capillaries
► (a) Fibrous connective tissue

9. Certain neutrophils in female mammals possess a small spherical lobe attached to their nucleus by a stalk. This lobe is called
(a) Barr body
(b) Leucona
(c) Leukopenia
(d) Golgi body
► (a) Barr body

10. Which of the following match is incorrect ?
(a) Holocirine – Sebaceous
(b) Merocrine –  Pancreas
(c) Apocrine – Mammary glands
(d) Eccrine (Merocrine) – Mammary gland
► (d) Eccrine (Merocrine) – Mammary gland

11. Metagenesis refers to:
(a) Alteration of generation between asexual and sexual phases of an organisms
(b) Occurrence of a drastic change in form during post-embroyonic development
(c) Presence of a segmented body and parthenogenetic mode of reproduction
(d) Presence of different morphic forms
► (a) Alteration of generation between asexual and sexual phases of an organisms

12. If a clean dry bone is kept in dil HCl for about 3 days, it
(a) Breaks into pieces
(b) Becomes soft and elastic
(c) Dissolves
(d) Remain unchanged
► (b) Becomes soft and elastic

13. Integument is usually called by the proverb ‘Jack of all trades’ because it-
(a) Gives shape to various structures of the body
(b) Protects of the body
(c) Restricts the size of the individual
(d) Performs various functions
► (d) Performs various functions

14. The epithelium found in the lining layer of stomach and intestine is -
(a) Columnar
(b) Squamous
(c) Stratified
(d) Pseudostratified
► (a) Columnar

15. Which one of the following contains the largest quantity of extra-cellular material               
(a) Striated muscle                           
(b) Areolar tissue
(c) Stratified epithelium
(d) Myelinated nerve fibres
► (b) Areolar tissue

16. 'Goose -flesh ' is:
(a) Arrector pilli muscles contract & they cause the erection of hairs.
(b) Some long and hard hairs situated upon the upper lip in rabbit
(c) Presence of sebum to keep skin soft
(d) Uncooked meat of pork
► (a) Arrector pilli muscles contract & they cause the erection of hairs.

17. Covering membrane around muscle fibre is known as
(a) Neurilemma
(b) Plasmalemma
(c) Sarcolemma
(d) Myolemma
► (c) Sarcolemma

18. Long refractory period is present in                  
(a) Smooth muscles
(b) Cardiac muscles
(c) Striated muscles
(d) None of these
► (b) Cardiac muscles

19. Which organ of the body is known as "Jack of all trades" -
(a) Kidney
(b) Brain
(c) Skin
(d) All of the above
► (c) Skin

20. The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of :
(a) Potassium urate
(b) Urea
(c) Calcium carbonate
(d) Ammonia
► (a) Potassium urate

21. In mammals maximum energy is lost by the
(a) Respiration
(b) Urine
(c) Skin
(d) Stool
► (c) Skin

22. Pseudostratified epithelium is present in -
(a) Nephron & Neurone
(b) Larynx & Bronchi
(c) Trachea & Bronchi
(d) Urinary Bladder & Intestine
► (c) Trachea & Bronchi

23. The epithelium found in the lining layer of stomach and intestine is
(a) Squamous epithelium
(b) Cuboidal epithelium
(c) Columnar epithelium
(d) Ciliated columnar epithelium
► (c) Columnar epithelium

24. The skin becomes dry during the cold weather because of-
(a) Vasodilation
(b) Vasoconstriction
(c) Less sweat in cold weather
(d) None of the above
► (b) Vasoconstriction

25. Which part of hairs have pigment granules of melanin -
(a) Hair follicle
(b) Hair papilla
(c) Medulla
(d) Cortex
► (d) Cortex

26. Lacrymal glands are responsible for secreting-
(a) Sebum
(b) Cerumin
(c) Tears
(d) Mucous
► (c) Tears

27. The first milk secreted following child birth is called-
(a) Infant milk
(b) Colostrum
(c) Casein
(d) None of these
► (b) Colostrum

28. Collagen is
(a) Carbohydrate
(b) Globular protein
(c) Fibres of structural proteins
(d) Lipid
► (c) Fibres of structural proteins

29. The innermost layer of epidermis in mammals is termed-
(a) Stratum granulosum
(b) Stratum lucidum
(c) Stratum spinosum
(d) Stratum germinativum
► (d) Stratum germinativum

30. Apocrine secretion of gland means:
(a) When the product is released but cell remains intact
(b) When entire contents of cell is discharged with the destruction of the cell
(c) When part of apical cytoplasm is lost
(d) None of these
► (c) When part of apical cytoplasm is lost

31. Ciliated Epithelium occurs in frog
(a) Oviduct & Buccal cavity
(b) Stomach & urinary Bladder
(c) Blood vessels & Lymph vessels
(d) Kidney & stomach
► (a) Oviduct & Buccal cavity

32. A process in which whole of skin (epidermis and dermis) is preserved by means of some chemicals is known as:
(a) Albinism
(b) Toxicology
(c) Taxidermy
(d) Tanning
► (c) Taxidermy

33. The most abundant type of animal tissue in the complex animals is
(a) Muscle tissue
(b) Nervous tissue
(c) Connective tissue
(d) Epithelial tissue
► (c) Connective tissue

34. In central nervous system the myelin sheath around the nerve fibre is formed by the spiral wrapping of
(a) Neurilemma
(b) Schwann cells
(c) Oligodendrocytes
(d) Neurolemmocytes
► (c) Oligodendrocytes

35. Glands of Zeis are associated with the eye lashes. These are modified-
(a) Sweat glands
(b) Mucous glands
(c) Sebaceous glands
(d) Sudoriferous glands
► (c) Sebaceous glands

36. The thinest epidermis is situated on
(a) Face
(b) Nipples
(c) Conjactiva
(d) Lips
► (c) Conjactiva
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