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Class 11 Biology MCQ Questions of Locomotion and Movement with Answers?

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Class 11 MCQ Questions Biology based on NCERT Text book for class 11. MCQ Questions are very helpful to attain high marks in board exams. Here, we have covered Important Questions on Locomotion and Movement for class 11 Biology subject. MCQ Questions for Class 11 Biology with Answers are ready according to the Latest Exam Pattern and NERT Books.

Students are encouraged to practice the NCERT Class 11 Biology MCQ Questions of Locomotion and Movement with Answers free is accessible here. Students can solve these Locomotion and Movement Class 11 MCQ Questions with Answers and survey their level of preparation.
 

Practice MCQ Questions for class 11 Biology Chapter-Wise

1. Metacarpals are present in

(a) wrist
(b) palm
(c) digits
(d) thigh

2. What happens in osteoporosis?

(a) Decrease in progesterone
(b) Increase in progesterone
(c) Decrease in estrogen
(d) Both 2 and 3

3. Coris cycle operates in

(a) Cartilage
(b) Muscle
(c) Liver
(d) Liver and muscle

4. Which cavity is formed by the fusion of coxal bones?

(a) Glenoid cavity
(b) Acetabulum
(c) Acromion
(d) Scapula

5. Which is a part of the pectoral girdle?

(a) Acetabulum
(b) Ilium
(c) Sternum
(d) Glenoid cavity

6. A skeletal muscle that decreases the angle between two bones and bends a joint is

(a) Flexor
(b) Abductor
(c) Extensor
(d) Adductor

7. What is the ion necessary for muscle contraction?

(a) Cl
(b) Ca
(c) Na
(d) K

8. Bones formed by ossification of a tendon is called

(a) Dermal bone
(b) Sesamoid bone
(c) Membrane bone
(d) Cartilage

9. Which joint occurs between humerus and radioulna?

(a) Ball and socket joint
(b) Sliding
(c) Pivot
(d) Hinge joint

10. Two of the body parts which do not appear in MRI may be

(a) scapula and canines
(b) ligaments and ribs
(c) tendons and premolars
(d) None of these

11. Intercostal muscles are found attached with

(a) ribs
(b) lungs
(c) Pleura
(d) None of these

12. Which of the following is the contractile protein of a muscle?

(a) Myosin
(b) Tropomyosin
(c) Tropomyosin
(d) Actin

13. Humerus differs from the femur in having

(a) Deltoid ridge
(b) Sigmoid notch
(c) Trochanter
(d) None of these

14. The joint in our neck which allows us to rotate our head left to right is

(a) pivot joint
(b) saddle joint
(c) hinge joint
(d) ellipsoid joint

15. The only movable bone in the skull is

(a) Mandible
(b) Ethmoid
(c) Maxilla
(d) None

16.  The roof of the cranium of the frog is formed by 

(a) parasphenoid
(b) alisphenoid
(c) frontoparietal
(d) orbitosphenoid

17. What will happen if ligaments are cut or broken?

(a) Bones will move freely at joints
(b) No movement at joint
(c) Bone will become unfix
(d) Bone will become fixed

18. Total number of bones in the hind limb of man is 

(a) 14
(b) 30
(c) 24
(d) 21

19. Skeletal muscle bundles [fascicles] are held together by a common connective tissue layer called:

(a) Perimysium
(b) Endomysium
(c) Fascia
(d) Aponeurosis

20. The neurotransmitter released at the neuromuscular junction is:

(a)  Adrenaline
(b)  Nor-adrenaline
(c)  Dopamine
(d)  Acetylcholine

21. Hypocalcemia may lead to:-

(a) Kidney stones
(b) Cholelithiasis
(c) Stronger muscle contractions
(d) Tetany

22. The combination of a neuron and the muscle fiber it associates with is called a/an.

(a) fascicle
(b) motor endplate
(c) motor unit
(d) myoneural junction

23. A functional G-actin molecule in its free state is bound to :

(a) Sodium ion and ATP
(b) Mangnese ion and ATP
(c) Magnesium ion and ATP
(d) None of the above

24. 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

25. A meromyosin molecule doesn’t contain :

(a) arm
(b) trunk
(c) tail
(d) head

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Answer:

1. Answer : (b) palm

Explanation: In humans, the five metacarpals are flat at the back of the hand and bowed on the palmar side; they form a longitudinal arch that accommodates the muscles, tendons, and nerves of the palm. The metacarpals also form a transverse arch that allows the fingertips and thumb to be brought together for manipulation.

2. Answer : (c) Decrease in estrogen

Explanation: Osteoporosis is a bone disease that occurs when the body loses too much bone, makes too little bone, or both. As a result, bones become weak and may break from a fall or, in serious cases, from sneezing or minor bumps. Osteoporosis means “porous bone.” Viewed under a microscope, healthy bone looks like a honeycomb.

3.Answer : (c) Liver

Explanation: In the Cori cycle, glucose is metabolized to pyruvate and then to lactate in muscle, the lactate is released into the blood and carried to the liver, where it is reconverted to pyruvate and used for gluconeogenesis, and the resulting glucose is released and travels back to the muscle.

4. Answer : (b) Acetabulum

Explanation: Each coxal bone is formed by the fusion of three bones - ilium, ischium, and pubis. At the point of fusion of these bones, there is a cavity called the acetabulum to which the thigh bone articulates.

5. Answer : (d) Glenoid cavity

Explanation: The pectoral girdle consists of the two bones that make up your shoulder: clavicle, or collarbone. scapula, or shoulder blade.

6. Answer : (a) Flexor

Explanation: Flexion, or bending, occurs when the angle between the bones decreases. Moving the forearm upward at the elbow or moving the wrist to move the hand toward the forearm are examples of flexion.

7. Answer : (b) Ca

Explanation: The muscle contraction cycle is triggered by calcium ions binding to the protein complex troponin, exposing the active-binding sites on the actin.

8. Answer : (b) Sesamoid bone

Explanation: The bone formed by the ossification of the tendon is called sesamoid bones. Their functions of sesamoid bones modify pressure, to diminish friction.

9. Answer : (d) Hinge joint

Explanation: The elbow is a more complex hinge joint that forms between the upper arm humerus and the forearm ulna and radius.

10. Answer : (a) scapula and canines

Explanation: These body parts include bones and teeth mainly. Thus, based on the above information we can conclude that two of the body parts which do not appear in MRI are the scapula and canines.

11. Answer : (a) ribs

Explanation: The Intercostal Muscles are found between the ribs, and there are two kinds: the internal and external intercostals. The internal intercostal muscles (in the inside of the rib case) extend from the front of the ribs, and go around back, past the bend in the ribs.

12. Answer : (a) Myosin

Explanation: The contractile proteins are myosin, the principal component of thick myofilaments, and actin, which is the principal component of thin myofilaments.

13. Answer : (a) Deltoid ridge

Explanation: Humerus differs from the femur in having a Deltoid ridge.

14. Answer : (a) pivot joint

Explanation: The joint where our neck joins the head is a pivotal joint. It allows us to bend our head forward and backward and turn the head to our right or left. In a pivotal joint, a cylindrical bone rotates in a ring.

15. Answer : (a) Mandible

Explanation: The only bone in your skull that forms freely movable joints is your mandible or jawbone.

16. Answer : (c) frontoparietal

Explanation:  Fronto-parietals are a pair of long, broad, flattened, and membranous bones. They are united along the mid-dorsal line and form the whole roof of the cranium. In larval frogs, each fronto-parietal occurs into separate frontal and parietal parts, but in the adult frogs, they become fused to form a single frontoparietal.

17. Answer : (c) Bone will become unfix

Explanation: If the ligaments are cut or broken the bone will become unfixed because ligaments connect bone to bone.

18. Answer : (b) 30

Explanation: The Hind-limb of humans consists of a total of 30 bones.

19. Answer : (c) Fascia

Explanation: Each organized skeletal muscle in the human body is made of a number of muscle bundles or fascicles held together by a common collagenous connective tissue layer called fascia.

20. Answer : (d)  Acetylcholine

Explanation: ACh also serves as a neurotransmitter in the periphery in the autonomic nervous system and in the central nervous system.

21. Answer :(d) Tetany

Explanation: Hypocalcemia, also known as a calcium deficiency disease, occurs when the blood has low levels of calcium. A long-term calcium deficiency can lead to dental changes, cataracts, alterations in the brain, and osteoporosis, which causes the bones to become brittle.

22. Answer : (c) motor unit

Explanation: The combination of an individual motor neuron and all of the muscle fibers that it innervates is called a motor unit.

23. Answer : (c) Magnesium ion and ATP

Explanation: G-actin is only functional when it contains either ADP or ATP in its cleft but the form that is bound to ATP predominates in cells when actin is present in its free state.

24. Answer : (b) Synovial membrane

Explanation: The synovial membrane secretes a watery fluid that lubricates and cushions the joint.

25. Answer : (b) trunk

Explanation: A meromyosin molecule doesn't contain a Trunk.

Click here to practice Locomotion and Movement MCQ Questions for Class 11

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