Q. No.The tentacles of Hydra do not help in
(1) Capturing prey
(2) Locomotion
(3) Movement of water out of the body
(4) Both A and C
(1) Capturing prey
(2) Locomotion
(3) Movement of water out of the body
(4) Both A and C
Limbs in humans are not used for
(1) Change in body postures
(2) Locomotion
(3) Movement of food in alimentary canal
(4) Both A and C
Which of the following statements is not correct?
(1) All locomotions are movements.
(2) All movements are not locomotions
(3) Animals and plants exhibit a wide range of movements
(4) Hydra cannot use its tentacles for locomotion
Based on location how many types of muscles are reported?
(1) Three, skeletal, visceral and, cardiac
(2) Two, smooth and skeletal
(3) Four, skeletal, visceral, cardiac, and Digestive systems
(4) Only one i.e. contractile muscles
Myofibrils has not
(1) Alternate dark and light bands
(2) Striated appearance because of distribution pattern of two important proteins- Actin and Myosin
(3) Both A and B
(4) Sarcolemma
Which of the following is not true regarding Z line?
(1) Made up of elastic fibres
(2) Present in centre of each I band
(3) It bisects the I band
(4) Thin Filaments are superficially touching to Z line.
Which of the following is not true regarding M line?
(1) Thin membrane
(2) Fibrous
(3) Holds thick filament of A band
(4) Keeps the Actin filament in centre
The head part of the HMM of muscle fiber is
1. Globular
2. Triangular
3. Filamentous
4. Both 2 and 3
The globular head is/has
1. An active ATPase enzyme
2. Binding sites for ATP
3. active sites for actin
4. All of these
Sliding Filament Theory states that
1. Contraction of muscle fibre takes place by the sliding of thin filaments over the thick filaments
2. Contraction of muscle fibre takes place by the sliding of thick filament over thin Filaments
3. Relaxation of muscle fibre takes place by the sliding of thick filament over thin filaments
4. Relaxation of muscle fibre takes place by the sliding of thin filament over thick filament
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