Biology - Questions and Answers, General Study (GK)

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121.

Annual ring do not occur in dicot tree growing on sea shore because

(a)Soil is sandy

(b)There is little climate variation

(c)Increases moisture

(d)There is a large scale dimatic variation

Comment

Answer is: BNA

122.

Lateral meristem is responsible for

(a)Growth of length

(b)Growth of parenchyma

(c)Growth of thickness

(d)Growth in cortex

Comment

Answer is: CNA

123.

Tissue is a group of cells

(a)Similar in origin , structure and function

(b)Similar in origin but dissimilar in structure and function

(c)Dissimilar in origin but similar in structure and function

(d)Dissimilar in origin , structure and function

Comment

Answer is: ANA

124.

Coagulation of blood in the vessel is prevented during normal condition by

(a)Prothrombin

(b)Calcium

(c)Heparin

(d)Albumin

Comment

Answer is: CNA

125.

The pH of human blood is normally around

(a)1.5-6.5

(b)5.5-6.5

(d)8.5-9.0

Comment

Answer is: CNA

126.

Whose living cell provide tensile and mechanical strength?

(a)Collenchyma

(b)Sclerenchyma

(c)Phloem

(d)Sclereids

Comment

Answer is: ANA

127.

Bark includes

(a)All the tissue outside vascular cambium

(b)Tissue inside the vascular cambium

(c)Tissue inside xylem

(d)All the dead tissue outside vascular

Comment

Answer is: ANA

128.

Age of tree is estimated by

(a)Its weight

(b)Its height

(c)By the number of annual rings

(d)By the length of its root

Comment

Answer is: CNA

129.

Function of velamen is

(a)Respiration

(b)Absorption of moisture

(c)Protection of tissue

(d)None of the above

Comment

Answer is: BNA

130.

Transverse section of an old tree stem shows fifty-five annual rings. The age of tree will be

Biology - Questions and AnswersPage 13

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