Biology Mcqs XI [Homeostasis] Online Test 2

Biology Mcqs XII [Homeostasis] MCQS Online Test - 2

Biology Aptitude Test. 10 Questions from Chapter # 15 Homeostasis

Q1. Plants living in, dry places such as deserts. steep hills, etc. and face scarcity of water is:

• Halophyte
• Mesophyte
• Xerophyte
• Hydrophyte
• Hydrophyte

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Q2. Some plants store water in large parenchymatous cells present in stem or leaves, such plants are termed as:

• Respirants
• Translucent
• Succulents
• Adjuvants
• Hydatids

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Q3. In Fresh water protoctists, osmoregulation take place by:

• Food vacuole
• Pseudopodia
• Producing dilute urine
• Contractile vacuole
• Mitochondria

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Q4. In Fresh water animals like fishes, osmoregulation takes place by:

• Food vacuole
• Producing concentrated urine
• Producing dilute urine
• Contractile vacuole
• Guttation

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Q5. Animals having isotonic body fluid with no osmoregulatory mechanisms are:

• Osmoconformers
• Contract conformers
• Osmoretractors
• Osmodilutors
• Osmocongeners

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Q6. In Plants, diffusion of surplus water in vapour form through stomata is:

• Respiration
• Transpiration
• Ascent of sap
• Transduction
• Osmosis

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Q7. In Plants, the loss of water in liquid form is:

• Succulence
• Tranduction
• Transpiration
• Guttation
• Ascent of sap

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Q8. Concerning Ammonia (NH3) as excretory product in animals, which statement is not correct?

• It is highly soluble in water
• it can diffuse very rapidly across the plasma membrane.
• It is highly toxic if remains in the organism.
• In Fishes ammonia is excreted through gills as ammonium ions.
• In Animals liver is involved in excretion of ammonia.

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Q9. “Uric acid” is:

• C₃O₅N₅H₂
• C₅O₃N₄H₄
• C₄O₆N₄H₃
• C₆O₃N₄H₂
• C₅O₄N₃H₂

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Q10. In Hydra, nitrogenous wastes is in the form of:

• Urea
• Uric Acid
• Ammonia
• Bilirubin
• Biliverdin

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Finish!

Homeostasis Test - 3

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