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 Biology Questions

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Q:

Which of the following is NOT a feature found in almost every cell ?

 

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

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Q:

Organs having different structure and components but perform similar functions are called ______.

 

A) Analogous organs B) Homologous organs
C) Heterogeneous organs D) Homogenous organs
 
Answer & Explanation Answer: A) Analogous organs

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Q:

The phenomenon of summer sleep by animals is called

A) hibernation B) aestivation
C) laziness D) lethargy
 
Answer & Explanation Answer: B) aestivation

Explanation:

Aestivation is summer sleep. Many organisms like the snails do not find it comfortable in summer. They withdraw and lead a life with reduced BMR (basic Metabolic Rate) in a state of  dormancy.

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Q:

Where does glucose breaks down into pyruvate?

 

A) Golgi bodies B) Cytoplasm
C) Chloroplast D) Protoplasm
 
Answer & Explanation Answer: B) Cytoplasm

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Q:

In most green plants, chloroplasts are

 

A) concentrated in a zone of leaf tissue called the mesophyll B) concentrated in a portion of the leaf called the stroma
C) found throughout the leaf tissue D) concentrated in the stomata
 
Answer & Explanation Answer: A) concentrated in a zone of leaf tissue called the mesophyll

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Q:

Bone deformities occur due to the excess intake of

A) Phosphorus B) Potassium
C) Fatty acid D) Fluorine
 
Answer & Explanation Answer: D) Fluorine

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Q:

Name the blood cells in which nucleus is absent

A) Lymphocytes B) Blood Platelets
C) Monocytes D) Eosinophils
 
Answer & Explanation Answer: B) Blood Platelets

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Q:

Hardest Part of the Human Body?

A) Tooth Enamel B) Femur
C) Temporal bone of skull D) Knee bone
 
Answer & Explanation Answer: A) Tooth Enamel

Explanation:

Tooth Enamel is the hardest and most highly mineralized substance in the human body. It is a tissue and not a bone. This tissue has high mineral content which makes it hardest substance.

 

Femur and Temporal bone of the skull are the hardest bones of the human body.

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