Spectrum biology

Statements

I.It is formed by two innominate bones.

II.Each innominate bone comprises of three

separate bones, i.e. ilium, ischium and pubis

III.A is a deep depression which articulates head of

femur.

IV.B is made up of white fibrous cartilage

Choose the correct set of statements

(a) II, III and IV (b) Only III

(c) I and IV (d) I, II, III and IV

29 .Consider the figures described below A and B.

Identify the statements describing the figures A

and B.

I.A shows immovable joints.

II.A have white fibrous tissue bteween the ends of

the bones.

III.B shows the presence of synovial fluid that

helps in lubrication of joints

IV.B type of joints are found in pubic symphysis of

pubis

Choose the code with correct set of statements.

(a) II and III (b) III and IV

(c) I, II and IV (d) I, II, III and IV

30 .Consider the diagrams showing various stages of

muscles during its contraction

Read the statements with reference to above

mentioned stages.

I.In resting muscle fibre, the outside of

sarcolemma is negatively charged.

II.Resting potential of membrane is maintained

by calcium ions.

III.When the tension remains the same and the

length of the muscle changes it is called

isotonic contraction.

IV.When the length of muscle fibres remain same

and tension is increased it is called isometric

contraction

Choose the correct set of statements

(a) I, II and IV (b) III and IV

(c) Only I (d) Only II

Sutures

A B

Relaxed

muscle

I-band A-band I-band

Thin Z-line

Thick myofilament

Cross bridge myofilament

Z-line H-zone

Maximally

contracted

muscle

M-line

Partially

contracted

muscle

Answers

1.(b) 2.( b) 3.(c) 4.(b) 5.(b) 6.(a) 7.(a) 8.(d) 9.(b) 10.(d)

11.(d) 12.(b) 13.(a) 14.(b) 15.(a) 16.(d) 17.(c) 18.(d) 19.(a) 20.(c)

21.(c) 22.(a) 23.(b) 24.(d) 25.(d) 26.(d) 27.(d) 28.(d) 29.(c) 30.(b)

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