Role of Muscles in Movement

Q.

Are forelimbs and hindlimbs the same?

Q.

The muscles become shorter and thicker because of contraction.

1. Relaxation

2. Contraction

Q. Which is more stable stagger form of conformer s in gauche and anti and why?

Q.

Muscles are firmly attached to bones by means of ___

Q. What are antagonistic muscles? Give one example.

Q. How many type of WBC in human body

Q. What is the difference between the manner in which movement takes place in a sensitive plant and the movement in our legs? [3 MARKS]

Q.

What makes up most of an elephant's trunk?

1. Nerve endings
2. Muscle
3. Bone
4. Cartilage

Q. How do draw free body diagram

Q. Which of the following represents X and Y in the figure given below?

1. X - muscle, Y - joint
2. X - joint, Y - bone
3. X - bone, Y - organ
4. X- organ, Y - muscle

Q.

The curling action of biceps of a bodybuilder is made possible by the contraction of biceps. However, the bending of the arm occurs when the ___ pulls the bone of the forearm.

1. none of these

2. tendon

3. ligament

4. cartilage

Q.

Which Body Part Is Vestigial In Humans?

Q.

The tissue that fills the area around the bones is __.

Q.

Earthworms have bones.

1. True

2. False

Q. An elephant's trunk chiefly contains which of the following?

1. Nerve endings
2. Muscle
3. Bone
4. Cartilage

Q. Explain Dipole movement

Q. Triceps and biceps are examples of

1. Antagonistic muscles
2. Involuntary muscles
3. Sphincter muscles
4. Smooth muscles

Q. Match the terms to these definitions.
The abductor, adductor, false rib, joint, supinator, rigor mortis, motor, end-plate, spasm, pronator, muscle twitch
______ rotates the forearm, making the palm face upward or forward.

Q. Very short answer type.
Mention the most significant function/role of the following
(i) Organ of Corn, (ii) Pons varoli, (iii) Gustatory cells, (iv) Fovea centralis.

Q. Muscles are thin long threads of fibrous tissue that are bundled up together.

1. False
2. True

Q. Which one is both structural and functional (catalytic) protein?

1. Hexokinase
2. Ribozyme
3. Myosin
4. Acetyl Co-A

Q. Movements of the limbs are done by the pulling action of muscles.

1. False
2. True

Q. Assertion :Assertion : Biceps and triceps are antagonistic muscles. Reason: Reason : The biceps flexes the arm and the triceps straightens the arm.

1. If both assertion and reason are true and reason is the correct explanation of assertion.
2. If both assertion and reason are true but reason is not the correct explanation of assertion.
3. If assertion Is true but reason is false.
4. If both assertion and reason are false.

Q.

Just like a locomotive engine, muscles can only _____.

1. pull

2. push

3. flex

4. relax

Q.

Name the body part and the mode of movement shown by the animal:

Earthworm

Q. Factors affecting evaportion

Q. Very short answer type:
With which type of equilibrium are the maculae mainly concerned?

Q.

Name the body part and the mode of movement shown by the animal:

Earthworm

Q. Why red muscles have less sarcoplasmic reticulum?

Q. Cardiac muscles are

1. Striated and voluntary
2. Smooth and voluntary
3. Smooth and involuntary
4. Striated and involuntary