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Q:

Some amount of plasma, proteins and blood cells escape through the pores present in the walls of capillaries into the intercellular spaces in the tissue and form ______.

 

A) heparin B) lymph
C) platelet   D) protein
 
Answer & Explanation Answer: B) lymph

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Q:

Plants utilise ________ from the atmosphere foe photosynthesis

A) oxygen B) nitrogen
C) Carbon dioxide D) hydrogen
 
Answer & Explanation Answer: C) Carbon dioxide

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Q:

Goitre is caused by the deficiency of ___________

A) Zinc B) Calcium
C) Iodine D) Chlorine
 
Answer & Explanation Answer: C) Iodine

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Q:

___ has naked seeds.

A) Pinus B) Lemon
C) Carrot D) Wheat
 
Answer & Explanation Answer: A) Pinus

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Q:

Which acid is secreted by certain glandular cells in the stomach lining?

A) Hydrochloric  B) Ethanoic
C) Formic D) Nitric
 
Answer & Explanation Answer: A) Hydrochloric 

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Q:

Which feature of a plant helps to distinguish a monocot from a dicot?

A) pollination B) venation
C) vernation D) aestivation
 
Answer & Explanation Answer: B) venation

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Q:

Which feature of the cell allows or permits the entry and exit of some materials in and out of the cell?

A) Cytoplasm B) Protoplasm
C) Cell wall D) Plasma membrane
 
Answer & Explanation Answer: D) Plasma membrane

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Q:

Accumulation of which one of the following in the leads to cramp?

A) Lactic acid B) Ethanol
C) Pyruvic acid D) Glucose
 
Answer & Explanation Answer: A) Lactic acid

Explanation:

Muscle cramping is a common problem encountered by athletes and non athletes alike. Defined as painful involuntary skeletal muscle contractions, cramps may be categorized as either non exercise related or exercise related. Traditionally, such cramping was believed to arise from dehydration, electrolyte imbalances (including magnesium, potassium and sodium),accumulation of lactic acid, or low cellular energy levels.

 

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