Which type of cells is absent in sponges? from Biology NEET Year

Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Rh-factor can produce disease

  • AIDS

  • Tumer’s syndrome

  • Erythroblastosis foetalis

  • Sickle cell anaemia


2.

Penumotoxic centre which a moderate the function of the respiratory rhythm centre is present at

  • Pons region in brain

  • Thalamus

  • Spinal cord

  • Right cerebral hemisphere


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3.

Which type of cells is absent in sponges?

  • Trophocytes

  • Myocytes

  • Archeocytes

  • Cnidocytes


D.

Cnidocytes

Cnidocytes or stinging cells are spherical or oval cells found in entire epidermis except that of basal disc and are found only in cnidarians other cells are found in sponges.


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4.

Which of the following hormone secretes a gastric secretion?

  • Entero gastrone

  • Gastrin

  • CCK-PZ

  • Villikinin


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5.

Food storage in Leucosolenia occur by

  • Ostia

  • Osculam

  • Thesocyte

  • Spongocoel


6.

Which of the following disorder is an outcome of irregularities in the metabolism of the nitrogenous waste?

  • Osteoporosis

  • Gouty Arthritis

  • Osteoarthritis

  • Rheumatoid arthritis


7.

During urine formation, which of the following process create thigh osmotic pressure in the uriniferous tubule?

  • Active Na+ absorption, followed by absorption of Cl

  • Active Cl absorption, followed by absorption of Na+

  • Active secretion of Na+ into efferent arteriole followed by absorption of Cl into the efferent renal arteriole

  • Active secretion of Cl and absorption of Nainto the efferent renal arteriole


8.

 Steroid hormones work as

  • They enter into target cells and binds with specific receptor and ativate4s specific genes to form protein

  • They bind to cell membrane

  • They catalyse formation of cAMP

  •  None of the above


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9.

In the following diagram showing axon terminal and synapse A, B, C, D and E respectively represent

  • A-axon terminal, B-synaptic cleft, C-synaptic vesicles, D-neurotransmitters, E-receptors

  • A- axon terminal, B-synaptic vesicles, C-synaptic cleft, D-receptors, E-neurotransmitters

  •  A-synaptic cleft, B-synaptic vesicles, C-axon terminal, D-neurotransmitters, E-receptors

  •  A-synaptic vesicles, B-axon terminal, C-synaptic vesicles, D-neurotransmitters, E-receptors


10.

Adrenaline and noradrenaline are hormones that act as

  • Energy producing agents

  • Food storage materials

  • Neurotransmitters

  • Energy storing substances


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