Multiple Choice Questions

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Respiration pigment of blood in cockroach is

  • haemozoin

  • haemocyanin

  • haemoglobin

  • absent


D.

absent

Hemolymph is colourless because there are no blood cells or respiratory pigment. The cockroaches lack respiratory pigment.

Hemocyanin is a protein which carries the oxygen in the arthropods.

Haemozoin is a disposal product formed from the digestion of blood by some blood- feeding parasites.

Haemoglobin is a red protein responsible for transporting oxygen in the blood of vertebrates.


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Fifth cranial nerve of frog is called

  • vagus

  • trigeminal

  • optic

  • ophthalmic


Which tissue covered with calcium phosphate?

  • Bone

  • Muscles

  • Mesenchyma

  • Cartilage


Which one of the following contains the largest quantity of extracellular material?

  • epithelial tissue

  • neural tissue

  • Striated muscle

  • Areolar tissue


Major protein of connective tissue is

  • myosin

  • collagen

  • melanin

  • keratin


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Fertilization in earthworm is

  • cross fertilization

  • combined fertilization

  • self-fertilization

  • All of the above


One difference in breathing mechanism of frog and rabbit is that

  • expansion of frog's lungs is not much

  • abdominal movements more in frog

  • diaphragm and rib muscles play important role in rabbit

  • air reaching frog's lungs is to cool


Haemoglobin in earthworm is present in

  • RBC

  • protoplasm

  • coelomic fluid

  • plasma


In testis of frog, there are no

  • Sertoli cells

  • spermatocytes

  • spermatids

  • intestinal cells


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If frog's brain is crushed, even then its leg moves on pinpointing. It is called

  • simple reflex

  • conditional reflex

  • neurotransmitter function

  • autonomic nerve condition


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