Biology - Comprehensive Mock Test 29

Question 281 Medium

Which of these is the contractile protein of a muscle?

A) Tubulin B) Tropomyosin C) Myosin D) All of these

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Question 282 Medium

Which one of the following bones is the only movable portion of the skull?

A) Maxilla B) Mandible C) Frontal bone D) Zygomatic bone

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Question 283 Medium

Which one of the following is an example of an imperfect joint?

A) Elbow joint B) Pubic symphysis C) Suture D) Ball and socket joint

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Question 284 Medium

Which one of the following items gives its correct total number?

A) Cervical vertebrae in humans - 8 B) Floating ribs in humans - 4 C) Amino acids found in proteins - 16 D) Types of diabetes - 3

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Question 285 Medium

Which one of the following membranes secretes a watery fluid that lubricates and cushions the joint?

A) Tendons B) Synovial membrane C) Ligaments D) Cartilage

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Question 286 Medium

Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort?

A) One can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all B) The lungs can be made fully empty by forcefully breathing out all air from them C) One can breathe out air totally without oxygen D) One can breathe out air through eustachian tubes by closing both the nose and the mouth

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Question 287 Medium

Which one of the followings is correct regarding larynx?

A) It prevents foreign objects from entering the trachea B) It houses the vocal cords C) It is an organ made of cartilage and connects the pharynx to the trachea D) All of these are correct

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Question 288 Medium

Which one of the followings is NOT correct regarding Exhalation (expiration)?

A) Expiration is typically a passive process B) Exhalation starts when the expiratory muscles relax C) The elastic properties of the lung help to expel deoxygenated air during exhalation D) During exhalation, elastic properties of the lung help to expel deoxygenated air

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Question 289 Medium

Which one of the following statement is NOT correct regarding trachea?

A) It usually lies posterior to the muscular esophagus. B) It splits into the right and left bronchi to supply air to the lungs C) Opening to the trachea is covered by epiglottis. D) Tracheal rings are C-shaped

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Question 290 Medium

Inner surface of the bronchi, bronchioles and fallopian tubes are lined by ?

A) Cubical epithelium B) Columnar epithelium C) Squamous epithelium D) Ciliated epithelium

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