Question

SACRED HEART CONVENT SCHOOL MAJITHA
FIRST TERM EXAMINATION
(2021-2022)
CLASS : IX
SUBJECT : BIOLOGY
Ⓜ️Ⓜ️◾8⃣0⃣
TIME ALLOWED :

SECTION-A
➡️ ATTEMPT ALL THE QUESTIONS FROM THIS SECTION :
Ques 1 :

A. NAME THE FOLLOWING : (5x1=5)
(i) Pigment responsible for skin colouration.
(ii) A flower in which stamens are absent.
(iii) ''Suicide bag''of a cell.
(iv) A large hole at the back of the cranium through which the spinal cord passes.
(v) The mechanical barrier that prevent the entry of germs into the body.

B. CHOOSE THE CORRECT ANSWER FROM THE OPTION GIVEN BELOW : (5x1=5)
(i) A flower which contain bracts :
a) china rose
b) bougainvillea
c) sun flower
d) gulmohar
(ii) An organelle which synthesis protein :
a) endoplasmic reticulum
b) golgi body
c) ribosome
d) plastid
(iii) Number of bones in human body is :
a) 250
b) 260
c) 206
d) 205
(iv) The hardness of the bone is due to :
a) calcium
b) magnesium
c) sulphur
d) potassium
(v) The outermost covering of a vacuole is :
a) cell wall
b) tonoplast
c) cell membrane
d) tonoplasm

C. MENTION THE EXACT LOCATION OF : (5x1=5)
(i) Cell wall
(ii) sternum
(iii) centrosome
(iv) foramen magnum
(v) sweat gland

D. DIFFERENTIATE BETWEEN THE FOLLOWING : (5x1=5)
(i) True ribs and floating ribs (number)
(ii) Chloroplast and leucoplast (function)
(iii) Hinge joint and ball and socket joint (example)
(iv) staminate flower and pistillate flower (reproductive part present)
(v) congenital and acquired diseases (definition)

E. GIVEN BELOW ARE SETS OF FIVE TERMS. REWRITE THEM IN A LOGICAL SEQUENCE BEGINNING WITH THE TERM UNDERLINED : (5x1=5)
(i) Cell wall, cytoplasm, cell membrane, nucleolus, nuclear membrane.
(ii) Sacrum, thoracic, coccyx, cervical, lumbar.
(iii) Corolla, calyx, epicalyx, gynoecium, androecium.
(iv) Radius-ulna, humerus, phalanges, metacarpal, carpal.
(v) Cytoplasm, nucleoplasm, nuclear membrane, cell membrane, nucleolus.

F. MATCH THE FOLLOWING : (5x1=5)

(i) mitochondria (a) intracellular
digestion.

(ii) lysosomes (b) photosynthesis.

(iii) chloroplasts (c) vitellogenesis.

(iv) cell membrane (d) regulation of
transportation
of material into
and out of cell.
(v) golgi complex (e) liberation of
energy.

G. STATE WHETHER THE FOLLOWING STATEMENT ARE TRUE OR FALSE : (5x1=5)
(i) Centrosome is present in the plant cell only.
(ii) Rabies is a bacterial disease.
(iii) All animal cells contain cell wall.
(iv) Cancer is a communicable disease.
(v) Human RBC is the smallest known cell.

H. (a) DRAW A WELL LABELLED DIAGRAM OF CHLOROPLAST AND ANSWER THE FOLLOWING QUESTIONS : (5marks)
(i) Labelled the parts of diagram.
(ii) Give the significance of parts :
1. Stroma
2. Granum
(iii) Name the photosynthetic pigments present in it.
(iv) Is the chloroplast present in animal cells?
(v) Name two other types of plastids.

SECTION -B
➡️ATTEMPT ANY FOUR QUESTIONS FROM THIS SECTION :
(4x10=40)

Ques 2 : (a).Draw a well labelled diagram of synovial joint. (5)
(i) Label the parts.
(ii) Write its one location.
(iii) State the function of part synovial fluid.

(b).(i) Who formulated cell theory?
(ii) Why are cells generally in size? (5)

Ques 3: (a). Draw a well labelled diagram of vertical section of flower. (5)
(i) Label the parts.
(ii) What is the function of part anther?
(iii) Define the term 'Inflorescence'.

(b).(i) ''A cell without nucleus is with no future''. Comment.
(ii) Can you consider a cluster of eggs as a tissue.Why? (5)

Ques 4: (a) Give appropriate terms for the following : (5)
(i) Undifferentiated calyx and corolla.
(ii) Protein factories of a cell.
(iii) Smallest muscle in human body.
(iv) Flower bearing main axis.
(v) The membrane covering the external surface of a bone.

(b).(i) From where are mammary glands derived ?
(ii) Which hormone help to bring the hair in end on position? (5)

Ques 5: (a) Draw the well labelled diagram of V.S of HUMAN SKIN.
(8)
(i) Label the parts.
(ii) Give the function of parts :
1. Sebaceous gland.
2. Arrector pilli.
3. Hair follicle.
(iii) Name the pigments that gives colour to the skin.
(iv) Name the fluid secreted by the part sweat gland.

(b). Name the bones in which following structures are found :
(2)
(i) Centrum
(ii) glenoid cavity

Ques 6 : (a)why are the day blooming flowers usually bright coloured where as the night blooming flowers are usually strongly scented? (5)

(b). Give one example each of the following :
(5)
(i) Epigynous flower.
(ii) Flower with bracts.

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Answer 1

Answer:

Why are you sending your whole question paper?

Answer 2

Answer:

A

1) melanin

2)pistillate

3)lysosome

4)foramen magnum

5)mucous membranes