Locomotion and Movement Test

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Locomotion and Movement Test - 42

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Question 1
1 / -0

Read the following statement (A-D) with regards to muscles.
Choose the correct option.

A
I-bands are isotropic bands and made by actin filaments.

B
A-bands are anisotropic bands and made by both actin and myosin filaments.

C
In between I-bands thin fibrous M-line is present.

D
In between A-bands, thin fibrous M-line is present.

Solution

Sarcomere is consist of regular strands of contractile proteins. They are divided into units that are bordered by I bands which are bisected by Z discs and A band with a dark M in the center. I bands are isotropic bands made by actin filament, troponin and tropomyosin.
So, option A is the correct option.
Question 2
1 / -0

Supination means turning plan

A
Upward

B
Forward

C
Downward backward

D
Bending

E
Straightening

Solution

Pronation and supination are a pair of unique movements possible only in the forearms and hands, allowing the human body to flip the palm either face up or face down. The muscles, bones, and joints of the human forearm are specifically arranged to permit these unique and important rotations of the hands. So, the correct option is "A" (Upward).
Question 3
1 / -0

Which of the following features is common to all animals without any exception?

A
Locomotion

B
Specialised nervous system

C
Multicellularity

D
Herbivorous mode of nutrition
Solution
- Locomotion is the active movement i.e. with consumption of energy shown by all organism. Need, type and extent of locomotion differ from organisms to organism based on their organisation.
- The specialised nervous system is seen in only organisms with organ system level of organisation.
- Several organisms are unicellular, hence multicellularity is not a common feature of all organisms.
- All organisms differ in their mode of nutrition. They can be autotrophic or heterotrophic. If heterotrophic, they can be herbivores, carnivores or omnivores.
- So, the correct option is 'Locomotion'.
Question 4
1 / -0

Which of the following are the regulatory protein in the muscle contraction?

A
Troponin and tropomyosin

B
Troponin and actin

C
Myosin and tropomyosin

D
Actin and tropomyosin
Solution
- Actin and myosin are the contractile proteins, and they interact with each other, causing contraction, while troponin and tropomyosin are regulatory proteins that regulate the interaction between actin and myosin.
- Myofilaments(actin and myosin) are packed in functional units of striated muscle referred to as sarcomeres.
- Hence, Troponin and tropomyosin are the regulatory protein in muscle contraction.
- So, the correct answer is 'Troponin and tropomyosin'.
Question 5
1 / -0

Select the option where the property describing muscle fibres is not associated with wall of stomach.

A
Presence of actin and myosin fibrils

B
Branched, multinucleated appearance

C
Presence of cell junctions

D
Involuntary nature

Solution

The layers of stomach wall include serosa, muscularis, submucosa, and mucosa these are involuntary in nature and show the presence of cell junctions also, the muscularis layer shows branched and multinucleated appearance.
However, the presence of actin and myosin fibrils is seen in smooth muscles.
So, the correct answer is 'Presence of actin and myosin fibrils'.
Question 6
1 / -0

The linear protein that has catalytic function is _____________.

A
actin

B
collaagen

C
mysoin

D
trypsin

Solution

Actin usually exists as the globular monomer of G-actin and also as a polymer of F-actin. This F-actin is a linear chain of subunits of G-actin.
So, the correct answer is 'actin'.
Question 7
1 / -0

Myoglobin is found in?

A
Muscles

B
Blood

C
Lungs

D
RBCs
Solution
- Myoglobin is a protein found in muscles of almost all mammals that binds to both iron and oxygen.
- It is also made up of heme and globin protein.
- The main function of myoglobin is binding to oxygen and carrying it to different muscle tissues.
- So, the correct answer is 'Muscles'.
Question 8
1 / -0

Fill in the blanks with the correct combination of terms;
The joints in the body are the places where two ___a___ are joined together. The ends of bones are covered with soft ___b___. At the joints, the bones are held together strong, stretchy bands called ___ c__.

A
a-Bones; b-Cartilage; c-Tendons

B
a-Bones; b-Ligaments; c-Tendons

C
a-Bones; b-Cartilage; c-Ligaments

D
a-Cartilage; b-Ligaments; c-Tendons
Question 9
1 / -0

Which of the following pair is incorrect in relation to diseases and related symptoms-

A
Rheumatoid arthritis - accumulation of pannus granules

B
Rickets - Incomplete and insufficient deposition of calcium and phosphate into bones

C
Gouty Arthritis - Deposition of urea into joints

D
Osteoporosis - Deficiency of vitamin D

Solution

Rheumatoid arthritis affects joint linings, causing pain and swelling. Over long periods of time, this can cause bone erosion.
So, option A is the correct option.
Question 10
1 / -0

This is diagnosed by the presence of a type of IgM.

A
Osteoporosis

B
Gout

C
Osteoarthritis

D
Rheumatoid arthritis

Solution

D. Rheumatoid arthritis
EXPLANATION: IgM is a better predictor of rheumatoid arthritis. Patients with rheumatoid arthritis have higher immunoglobulin IgA, IgM and IgG concentrations. Anti-CCP antibodies can also be used to diagnose rheumatoid arthritis.

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Locomotion and Movement Test - 42

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Locomotion and Movement Test - 42

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Question 1

I-bands are isotropic bands and made by actin filaments.

A-bands are anisotropic bands and made by both actin and myosin filaments.

In between I-bands thin fibrous M-line is present.

In between A-bands, thin fibrous M-line is present.

Solution

Question 2

Upward

Forward

Downward backward

Bending

Straightening

Solution

Question 3

Locomotion

Specialised nervous system

Multicellularity

Herbivorous mode of nutrition

Solution

Question 4

Troponin and tropomyosin

Troponin and actin

Myosin and tropomyosin

Actin and tropomyosin

Solution

Question 5

Presence of actin and myosin fibrils

Branched, multinucleated appearance

Presence of cell junctions

Involuntary nature

Solution

Question 6

actin

collaagen

mysoin

trypsin

Solution

Question 7

Muscles

Blood

Lungs

RBCs

Solution

Question 8

a-Bones; b-Cartilage; c-Tendons

a-Bones; b-Ligaments; c-Tendons

a-Bones; b-Cartilage; c-Ligaments

a-Cartilage; b-Ligaments; c-Tendons

Question 9

Rheumatoid arthritis - accumulation of pannus granules

Rickets - Incomplete and insufficient deposition of calcium and phosphate into bones

Gouty Arthritis - Deposition of urea into joints

Osteoporosis - Deficiency of vitamin D

Solution

Question 10

Osteoporosis

Gout

Osteoarthritis

Rheumatoid arthritis

Solution

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