Locomotion and Movement Test

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Locomotion and Movement Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

Muscles are attached to bones via :

A
tendon

B
Ligament

C
Screw

D
Joints

Solution

Muscles are attached to bones by tendon and bones are attached with another bone by ligaments. Tendon and ligaments are types of connective tissue.
Question 2
1 / -0

Myoglobin is found to be :
i. highly abundant in muscles of whales and seals .ii. exhibiting cooperative binding of oxygen.
iii. allowing organisms to hold their breathe longer underwater.

A
only i) and iii) are correct.

B
all statements are correct

C
onlyi) and ii) are correct.

D
only ii) is correct.

Solution

Myoglobin is found to be highly abundant in muscles of whales and seals. Myoglobin being oxygen and iron binding protein allowing organisms to hold their breathe longer underwater.
Question 3
1 / -0

The correct result of ATPase activity that occurs during muscle contraction is :

A

B

C

D

Solution

ATPase enzyme acts on myosin to act on ATP to convert into ADP. The activated myosin combine with actin for contraction.
Question 4
1 / -0

The two systems that work in coordination and bring about movement and locomotion are

A
respiratoy and skeletal systems

B
circulatory and muscular systems

C
skeletal and muscular systems

D
nervous and muscular systems

E
skeletal and nervous systems
Question 5
1 / -0

A meromyosin molecule doesn’t contain :

A
arm

B
head

C
trunk

D
tail

Solution

Each meromyosin has two important parts, a globular head with a short arm and a tail.
Question 6
1 / -0

Which of the following statements is/are incorrect about sliding filament theory of muscle contraction?

A
during contraction Z lines come closer to together.

B
both A & B

C
during contraction width of H zone decreases.

D
during contraction width of I and A bands remain the same.

Solution

During contraction, the ‘I’ bands get reduced, whereas the ‘A’ bands retain the length.
Question 7
1 / -0

A functional G-Actin molecule in its free state is bound to :

A
sodium ion and ATP

B
magnesium ion and ATP

C
mangnese ion and ATP

D
Calcium ion and ATP

Solution

A functional G-actin molecule in its free state is bound to magnesium ion and ATP. G-actin molecule forms a bridge between the muscle fibres for sliding.
Question 8
1 / -0

Which of the following cells in a multicellular organism move(s) through the tissues by amoeboid movements to reach the places of infection?

A
RBC

B
WBC

C
Thrombocytes

D
Adipose cells

E
Secretory cells
Question 9
1 / -0

Study of muscles is called :

A
Mycology

B
Musclogy

C
Sarcology

D
myology

Solution

Myology is the study of the muscular system, including the study of the structure, function and diseases of muscle.
Question 10
1 / -0

The muscle which moves a part of the body away from the midline of the body is termed as

A
extensor muscle

B
abductor muscle

C
adductor muscle

D
pronator muscle

E
None of these
Question 11
1 / -0

Actin filaments are found in all eukaryotic cells but reportedly absent in :

A
nematode sperms

B
Camel sperms

C
human sperms

D
fish sperms

Solution

Actin filament help in contraction and relaxation of muscles. Actin filament are found in all eukaryotic cells but it is absent in nematode sperms.
Question 12
1 / -0

The number of bones in the human skull or cranium is

A
14

B
30

C
24

D
8

E
None of these
Question 13
1 / -0

In between fixed joints, where bones are held firmly,

A
white fibrous tissue is present

B
disc of white fibrocartilage is present

C
synovial fluid is present

D
RBCs and WBCs are present

E
None of these
Question 14
1 / -0

By the help of which of the following muscle forearm is being rotated ?

A
Pronator

B
Supinator

C
Extensor

D
Flexor

E
None of these
Question 15
1 / -0

Which of the following statements regarding muscle fatigue is false?

A
After heavy strain of muscular work, one feels fatigue.

B
Muscle contracts and remains in that state.

C
Deficiency of oxygen takes place.

D
Accumulation of lactic acid takes place.

E
Immediate source of energy ATP decreases.
Question 16
1 / -0

Discovery of actin is credited to

A
Halliburton

B
John Kendren

C
Straub

D
Pollard and Korn

Solution

Actin and myosin filaments are responsible for contraction and relaxation of muscle. The discovery of actin is credited to Straub.
Question 17
1 / -0

The property which doesn’t belong to muscle fibres is :

A
Excitability

B
elasticity

C
conductivity

D
Contractility

Solution

Muscle fibres have properties of excitability, elasticity and contractility but conductivity is not present in muscles fibers. These fibres help in movement of different body parts.
Question 18
1 / -0

Look at the following figure of movement of the thin filaments
The label x, y, and z are respectively

A
I band, A band, H zone

B
H zone, A band and I band

C
H zone, I band, A band

D
I band, H zone, A band

Solution

The label x is H-zone, y is I band and z is A band.

Question 19

1 / -0

Match the following:

1	Earthworm	a	Water vascular system
2	Starfish	b	Contractile cells
3	Lion	c	Muscle fibres
4	Hydra	d	Skeletal muscle

1 - c, 2 - a, 3 - d, 4 - b

1 - a, 2 - c, 3 - d, 4 - b

1 - b, 2 - a, 3 - d, 4 - c

1 - c, 2 - d, 3 - a, 4 - b

None of these

Question 20
1 / -0

Polymerisation of actin monomers involves ATP hydrolysis as shown in the following figure : [choose the correct one]

A

B

C

D

Solution

Each ‘F’ actin is a polymer of monomeric ‘G’ (Globular) actins.
Question 21
1 / -0

Which of the following statements is/are false regarding the skeletal system?

A
It provides protection to delicate organs like brain, spinal cord and lungs.

B
The bone marrow serves as the centre for the production of calcium and phosphate.

C
The movements of the ribs and sternum help with breathing.

D
In the ear, the sound vibrations are conveyed by a set of three bones as in man.

E
All of the above
Question 22
1 / -0

Which of the following joints do(es) not have bones fitted like the hinge of a door?

A
Elbow joint

B
Phalanges of toes

C
Wrist bones

D
Knee joint

E
None of these
Question 23
1 / -0

A
(1) & (2) represent contracted state while (3) & (4) represent breaking of cross bridge

B
(1) & (2) represent contracted state while (3) & (4) represent cross bridge formation

C
(1) & (2) represent relaxed state while (3) & (4) represent breaking of cross bridge

D
(1) & (2) represent relaxed state while (3) & (4) represent cross bridge formation

Solution

Myofibrils are present in muscles fibers which are parallelly arranged filaments in sarcoplasm. Figure 1 and 2 present relaxed state while figure 3 and 4 represents cross bridge formation.
Question 24
1 / -0

Various movements like looping, somersaulting, climbing, shortening and elongation can be seen in

A
starfishes

B
hydra

C
leeches

D
human beings

E
None of these
Question 25
1 / -0

The correct organisation of skeletal muscle is

A
fascicles → muscle fibres → myofilaments → sarcomere

B
muscle bundles → myofibrils → muscle cells → sarcomere

C
muscle bundles → muscle cells → muscle fibres → sarcomere

D
fascia → muscle cells → myofibrils → sarcomere

Solution

Each organised skeletal muscle in our body is made of a number of muscle bundles or fascicles held together by a common collagenous connective tissue layer called fascia. Each muscle bundle contains a number of muscle fibres. A characteristic feature of the muscle fibre is the presence of a large number of parallelly arranged filaments in the sarcoplasm called myofilaments or myofibrils. The portion of the myofibril between two successive ‘Z’ lines is considered as the functional unit of contraction and is called a sarcomere.
Question 26
1 / -0

Read the following statements about muscle contraction in humans :
i. chemical energy is converted into mechanical energy during muscle contraction and the chemical is a neurotransmitter.
ii. a neurotransmitter acetylcholine at motor end plate converts electrical energy into mechanical energy.
iii. in a contracted muscle, volume remains the same.
iv. a contracted muscle becomes shorter and thicker.

A
only iv) is correct.

B
only i), iii) and iv) are correct.

C
onlyi) and iv) are correct.

D
only ii), iii) and iv) are correct.

Solution

The chemical energy is converted into mechanical energy during muscle contraction and the chemical is a neurotransmitter. In a contracted muscle, volume remains the same and a contracted muscle becomes shorter and thicker.

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Locomotion and Movement Test - 4

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Locomotion and Movement Test - 4

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SHARING IS CARING

Question 1

tendon

Ligament

Screw

Joints

Solution

Question 2

only i) and iii) are correct.

all statements are correct

onlyi) and ii) are correct.

only ii) is correct.

Solution

Question 3

Solution

Question 4

respiratoy and skeletal systems

circulatory and muscular systems

skeletal and muscular systems

nervous and muscular systems

skeletal and nervous systems

Question 5

arm

head

trunk

tail

Solution

Question 6

during contraction Z lines come closer to together.

both A & B

during contraction width of H zone decreases.

during contraction width of I and A bands remain the same.

Solution

Question 7

sodium ion and ATP

magnesium ion and ATP

mangnese ion and ATP

Calcium ion and ATP

Solution

Question 8

RBC

WBC

Thrombocytes

Adipose cells

Secretory cells

Question 9

Mycology

Musclogy

Sarcology

myology

Solution

Question 10

extensor muscle

abductor muscle

adductor muscle

pronator muscle

None of these

Question 11

nematode sperms

Camel sperms

human sperms

fish sperms

Solution

Question 12

14

30

24

8

None of these

Question 13

white fibrous tissue is present

disc of white fibrocartilage is present

synovial fluid is present