Biology - Mock Test 93

Question 921

Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it?

A) Iris - Involuntary smooth muscle B) Heart wall - Involuntary unstriated muscle C) Biceps of upper arm - Smooth muscle fibres D) Abdominal wall - Smooth muscle

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Question 922

Which of the following is striped muscle but not voluntary?

A) Wrist muscles B) Shank C) Cardiac muscles D) Abdominal

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Question 923

Which one of the following pairs is wrong about cardiac muscles?

A) Location - only in the heart B) Function - Pumping of blood C) Gap junctions - No D) Striated - Yes

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Question 924

Which of the following muscles draw the lower jaw, tongue and the head backward?

A) Abductor B) Retractor C) Proctor D) All of these

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Question 925

The expanded portions of the ______ are calcium storage sites?

A) Sarcoplasmic reticulum B) Sarcoplasm C) Neuromuscular junctions D) Myofibril

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Question 926

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 927

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 928

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 929

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 930

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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