Structural Organisms In Animals MCQ Questions And Answer For Neet – Biology Class 11 Chapter 7 Important Questions PDF

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Structural Organisms In Animals MCQ Questions And Answer For Neet

1) Stereocilia occur in?
a) Pseudostratified columnar epithelium of trachea
b) Columnar epithelium of stomach
c) Stratified columnar epithelium of pharynx
d) Pseudostratified columnar epithelium of
epididymis

2) The cellular layers in epidermis of skin consists of?
a) Glandular cells
b) Columnar cells
c) A squamous stratified cornified epithelium
d) A complex columnar stratified epithelium

3) The secretion of tears, milk, sweat and oil are functions of which of the following tissues?
a) Epithelial
b) Nervous
c) Loose connective
d) Lymphoid

4) Simple coiled tubular glands are found in?
a) Dermis of skin b) Kidney
c) Liver d) Spleen

5) In animals, gametes are derived from?
a) Epithelial tissue b) Nervous tissue
c) Occur singly d) None of the above

6) Tissue which has power of division and regeneration throughout life?
a) Epithelial tissue b) Mascular tissue
c) Connective tissue d) Nervous tissue

7) Compound squamous epithelium is found in?
a) Stomach b) Intestine
c) Trachea d) Pharynx

8) The epithelium in the bronchioles is?
a) Pseudostratified and columnar
b) Squamous and sensory
c) Pseudostratified and sensory
d) Cuboidal and columnar

9) Which type of epithelium is found in oesophagus, buccal cavity, cornea, vagina and cervix?
a) Transitional epithelium
b) Columnar epithelium
c) Non-keratinized stratified epithelium
d) Keratinized stratified epithelium

10) Which of the following is the characteristic of epithelial tissues?
a) They are highly vascularised
b) They never produce glands
c) They have large intercellular spaces
d) They have a rapid rate of cell division

11) The type of epithelium found in conjunctiva of eye is?
a) Stratified cuboidal
b) Stratified columnar
c) Stratified squamous
d) Transitional epithelium

12) Outer layer of skin is made up of keratinized epithelium, this is because?
a) It is exposed thus subjected to wear and tear
b) It covers the whole body
c) It is thick
d) It prevents the entry of pathogens

13) The intestine and stomach in mammals are lined by?
a) Cuboidal epithelium
b) Columnar epithelium
c) Squamous epithelium
d) Stratified epithelium

14) Pseudostratified columnar epithelium is found in?
a) Wall of cloaca b) Male urethra
c) Oviduct d) Oesophagus

15) Epithelial tissues arise from?
a) Ectoderm b) Endoderm
c) Mesoderm d) All of the above

16) Which one of the following types of cell in involved in making of the inner walls of large blood vessels?
a) Cuboidal epithelium
b) Columnar epithelium
c) Squamous epithelium
d) Stratified epithelium

17) To which one of the following categories does adipose tissue belong?
a) Epithelial b) Connective
c) Muscular d) Neural

18) Smooth muscle fibres are?
a) Cylindrical, unbranched, striated, multinucleate and voluntary
b) Spindle-shaped, unbranched, non-striated, uninucleate and involuntary
c) Cylindrical, unbranched, non-striated,
multinucleate and involuntary
d) Spindle -shaped, unbranched, striated,
uninucleate and voluntary

19) The muscles immune to fatigue are?
a) Striped b) Unstriped
c) Cardiac d) None of these

20) Irritability and conductivity are maximum developed in
a) Muscular tissue b) Nervous tissue
c) Connective tissue d) None of the above

21) During muscular contraction?
a) ATP is broken down b) ATP is formed
c) GTP is broken down d) None of these

22) Cardiac muscles fibres differ from skeletal muscles because these are?
a) Striated, involuntary
b) Non-striated-volunatry
c) Non-striated involuntary
d) Antagonistic

23) Young cockroach is called?
a) Maggot b) Nymph
c) Ephyra d) Pupa

24) On an average, female cockroach produces how many oothecae? Each ootheca has 14-16 eggs?
a) 9 – 10 b) 14 – 16
c) 50 – 75 d) 75 – 100

25) In cockroach life cycle, the nymph looks very musch similar like adult. The nymph?
a) Lacks wing b) Has wings
c) Has wing pads d) a and c

26) Anterior part of genital pouch in female cockroach contains?
a) Gonopore b) Spermathecal pores
c) Collateral glands d) All

27) In male cockroach; genital pouch / chamber lies at the hind end of abdomen bounded dorsally by and and ventrally by _ sternum?
a) 9th, 10th, 11th b) 9th, 10th, 12th
c) 8th, 9th, 13th d) 9th, 10th, 9th

28) Which of the following is correct about cockroach?
a) Sexual dimorphism is distinct
b) The anal styles are present on 9th sternite of male only
c) In both sexes the 10th segment bears a pair of jointed filmentous structures called anal cerci
d) All are correct

29) Male cockroach has?
a) Dorsal anus, ventral genital pore and
gonapophysis
b) Ventral anus, dorsal genital pore and
gonapophysis
c) Dorsal anus, ventral genital pore but no
gonapophysis
d) Dorsal anus, ventral genital pore, gonapophysis but no anal styles

30) The largest part of the alimentary canal of cockroach is?
a) Crop b) Rectum
c) Gizzard d) Caecae

31) Which part of alimentary canal of cockroach contributes to crushing food?
a) Crop b) Rectum
c) Gizzard d) Ileum

32) A ring of 6 – 8 blind tubules called hepatic / gastric caecae are present at?
a) Fore gut b) Hindgut
c) Midgut d) Junction of foregut and midgut

33) The hepatic caecae in cockroach?
a) Store excess food
b) Produce digestive enzymes
c) Absorb fully digested food
d) Are helpful in egestion

34) Number of spiracles in cockroach are?
a) 2 pairs on thorax and 8 pairs on abdomen
b) 3 pairs on thorax and 7 pairs on abdomen
c) 3 pairs on thorax and 9 pairs on abdomen
d) 1 pair on thorax and 6 pairs on abdomen

35) In frog, which one of the following opens into the duodenum?
a) Pancreatic duct b) Bile duct
c) Hepatic duct d) Hepato-pancreatic duct

36) RBC of frog is?
a) Oval and nucleate
b) Circular and nucleate
c) Oval and enucleate
d) Biconcave and enucleate

37) Amphibian heart is?
a) 2-chambered b) 3-chambered
c) 4-chambered d) 5-chambered

38) In frog, verticle opens into _ on the _ side of heart?
a) Sinus venosus, dorsal
b) Sinus venosus, ventral
c) Conus arteriosus, ventral
d) Conus arteriosus, dorsal

39) In frog, lymphatic system consists of?
a) Lymph b) Lymph channels
c) Lymph nodes d) All

40) In frog, urinary bladder is?
a) Absent b) Paired
c) Bilobed d) Pentalobed

41) Frog is?
a) Ammonotellic b) Uricotellic
c) Ureotellic d) Guanotelic

42) In frog, how many pairs of cranal nerves are found?
a) 10 b) 12
c) 8 d) 31

43) Mesorchium in frog refers to?
a) Fold of peritoneum between kidney and testis
b) Internal tissue of kidney
c) Internal tissue of testis
d) Capsule of kidney

44) Bidder’s canal is meant for passage of?
a) Ova b) Urine
c) Sperms d) All of these

45) In male frog, cloaca is used to pass out?
a) Faecal matter only b) Urine only
c) Sperms only d) Faeces, urine and sperm

46) Bidder’s canal in frog is found in?
a) Liver b) Testis
c) Ovary d) Kidney

Structural Organisms In Animals MCQ Questions And Answer For Neet – Answer Keys

1) D. Pseudostratified columnar epithelia with stereocilia are located in the epididymis. Stereocilia of the epididymis are not cilia because their cytoskeleton is composed of actin filaments, not microtubules. They are structurally and molecularly more similar to microvilli than to true cilia.

2) C. The outer most layer in epidermis of skin consist of keratinized stratified squamous epithelium cells. These cells slowly become dead, non nucleated and water proof.

3) A. Epithelial tissue – Functions of epithelial cells include secretion, selective absorption, protection, transcellular transport, and sensing.

4) A. Dermis of skin – The sweat glands are simple tubular exocrine glands that are found in the superficial hypodermis bordering on the dermis. They discharge their contents onto the surface of the skin via coiled secretory ducts

5) A. The cell of Germinal epithelium is cuboidal, which are capable of producing gametes.

6) A. Epithelial tissue has great regeneration power because when epithelia are injured they regenerate more rapidly than other tissues and thus faciliate rapid healing of wounds.

7) D. Pharynx – The other two regions of the pharynx, the oropharynx and laryngopharynx, are lined by nonkeratinizing stratified squamous epithelium.

8) D. Cuboidal and columnar – Bronchioles are approximately 1 mm or less in diameter and their walls consist of ciliated cuboidal epithelium and a layer of smooth muscle.

9) C. Non-keratinized stratified epithelium – Non-keratinized stratified squamous epithelium include corneal epithelium, lining mucosa of oral cavity, esophagus, anal canal, ectocervix, vagina, foreskin,
and the internal portion of the lips.

10) D. Epithelia regenerate more rapidly than other tissues when injured.

11) C. Stratified squamous – The conjunctiva is a tissue that lines the inside of the eyelids and covers the sclera (the white of the eye). It is composed of unkeratinized, stratified squamous epithelium with goblet cells.

12) A. Keratinized epithelium protects the underlying tissues from mechanical injury.

13) B. Simple columnar epithelium lines the stomach, the small and large intestines, the digestive glands and the gall bladder.

14) B. Male urethra – Ciliated pseudostratified columnar epithelia is the type of respiratory epithelium found in the linings of the trachea as well as the upper respiratory tract. Non-ciliated pseudostratified columnar epithelia are located in the membranous part of male vas deferens. The epithelial lining of the male urethra changes from transitional epithelium at the bladder end to
pseudostratified epithelium through prostatic, membranous and most of penile urethra, eventually changing to nonkeratinizing stratified squamous epithelium distally.

15) D. Following embryonic layers given rise to, Ectoderm – Epidermis, Mesoderm – Mesothelium, Endoderm – Epithelium of alimentary canal

16) C. Squamous epithelium

17) B. Connective tissue

18) B. Spindle-shaped, unbranched, non-striated, uninucleate and involuntary

19) C. Due to long refractory period the cardiac muscles never get fatigue.

20) B. Nervous tissue consists of cells having a well developed power of irritability and conductivity, forms nervous system.

21) A. During muscle contraction, ATP undergoes hydrolysis in the presence of water and myosin ATP are to form ADP + Pi and liberation of energy.

22) A. Cardiac muscles form the walls of heart. These are intrmediate in structure being striated and involunatry. It is meanst for automatic and rhythmic contraction. On the other hand skeletal muscles are striated and voluntary, they are most abundant and found attached to skeleton. They are supplied by somatic nerve and hence are under voluntary control.

23) B. Nymph

24) A. A female American roach lays about 16 eggs at a time and will produce about minimum six to maximum 14 oothecae during her lifespan (Average 9 to 10), with an average incubation period of 44 days. That’s up to 224 offspring.

25) D. a and c – Cockroach nymphs are similar to their adult counterparts. Cockroach nymphs undergo a series of molts. They emerge as full adults from their final molt. Nymph stages are called
instars and each one is numbered after each molt

26) D. The anterior part of the genital part contains the female gonopore, spermathecal pores and collateral glands. In males, the genital pouch lies at the hind end of abdomen.

27) D. 9th, 10th, 9th

28) D. All are correct statements

29) A. Dorsal anus, ventral genital pore and gonapophysis – In males, the genital pouch lies at the hind end of abdomen. It contains the dorsal anus, ventral male genital pore and gonapophysis.

30) A. The oesophagus is short in the length tabular structure while crop is large pear shaped structure. But both are thin walled structure. Gizzard is a small, rounded thick walled with muscular
chitins lining structure.

31) C. The gizzard is a muscular stomach with sharp teeth-like structures that grinds the food into smaller pieces. The gastric sacks contain bacteria that the cockroach uses to digest its food.

32) D. Junction of foregut and midgut

33) B. The hepatic caeca which are also known as gastric caeca is a 6-8 narrow and hollow ring-like blind tubules which are present in the junction of the foregut and midgut. Since cockroaches are omnivorous organisms the hepatic caeca secrete the digestive enzymes for the facilitation of digestion in cockroaches.

34) A. 2 pairs on thorax and 8 pairs on abdomen

35) D. Hepato-pancreatic duct

36) A. Oval and nucleate

37) B. 3-chambered

38) C. Conus arteriosus, ventral

39) D. All

40) C. Bilobed (Image – 7.22 in NCERT page 119)

41) C. Ureotellic

42) A. 10

43) A. Fold of peritoneum between kidney and testis

44) C. Bidder’s canal is present inside kidney of frog. It receives sperms from testes via a number of vasa efferentia.

45) D. Faeces, urine and sperm

46) D. Bidder’s canal is present inside kidney of frog. It receives sperms from testes via a number of vasa efferentia.

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