Biology Questions

Q:

Prothrombin, responsible for clotting of blood is released by_____.

A) Small Intestine B) Blood Platelets
C) Large Intestine D) Heart
 
Answer & Explanation Answer: B) Blood Platelets

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Q:

Which of the following are known as the suicide bags of cells?

A) Lysosomes B) Golgi bodies
C) Nucleoli D) Ribosomes
 
Answer & Explanation Answer: A) Lysosomes

Explanation:

Lysosome is an organelle in the cytoplasm of eukaryotic cells containing degradative enzymes enclosed in a membrane. They are capable of breaking down all types of biological polymers like proteins, nucleic acids, carbohydrates, and lipids.

 

Lysosomes are known as the suicide bags of cells because whe any cell gets damaged these organelles burst and the enzymes present in it will digest the damaged cell.

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Q:

Which of the following is not true about Angiosperms?

A) Dominant phase is gametophytes B) Vascular bundles are present
C) Spores are heterospores D) Seeds are covered
 
Answer & Explanation Answer: A) Dominant phase is gametophytes

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Q:

Which of the following organs do not have blood vessels?

A) Spleen B) Cornea
C) Liver D) None of the above
 
Answer & Explanation Answer: B) Cornea

Explanation:

Corneas are only tissues that don’t have blood vessels. Tissues are the level cellular organization in the human body which lies between cells and a complete organ. Tissues of similar cells group together to form an organ.

 

There are four types of tissues. They are :

Epithelial,

Connective,

Muscular, and

Nervous tissue.

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Q:

What type of a body plan does coelenterates, ctenophores and echinoderms have?

A) Annelida B) Radial
C) Bilateral D) Platyhelminthes
 
Answer & Explanation Answer: B) Radial

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Q:

Taenia (Tapeworm), Fasciola (Liver fluke) are examples of which Phylum?

A) Coelenterata B) Platyhelminthes
C) Annelida D) Arthropoda
 
Answer & Explanation Answer: B) Platyhelminthes

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Q:

Which is the only one example of Mollusca Phylum?

A) Locust B) Butterfly
C) Scorpion D) Octopus
 
Answer & Explanation Answer: D) Octopus

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Q:

Which of the following statements about vitamins is true?

A) Vitamins have a small caloric value B) Vitamins can serve as an energy supply for the body if certain criteria are met
C) Like protein and some minerals, vitamins contribute to the structure of the body D) Vitamins are indispensable for the maintenance of optimal health
 
Answer & Explanation Answer: D) Vitamins are indispensable for the maintenance of optimal health

Explanation:

Vitamins are indispensable for the maintenance of optimal health is the only statement that is true about vitamins.

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