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Atul Sanjeev from Indian School Al Ghubra, Muscat

Subject :NSO Class : Class 6

Refer to the given dichotomous key and select the correct option.
I. (A) It is categorised as energy giving food. – Go to II
(B) It is categorised as protective food. – Go to III
II. (A) It is soluble in water. –
(B) It is insoluble in water. –
III. (A) It is needed for clotting of blood. –
(B) It helps in formation of haemoglobin. –

A Q could be glucose which is instant source of energy.
B Deficiency of S causes anaemia characterised by pale body colour, body fatigue etc.
C R causes osteoporosis in adults while S causes goitre in adults.
D P occurs in the cell wall of plant cells and in fibres.

View All Answers (4)

Ans 1:

Smita De from Bishop Cotton Girls School, BANGALORE

Class : Class 6

hi can someone please help

Ans 2:

Tamoghna Ghosh from bal bharati public school, Jhajjar

Class : Class 6

According to the dichotomous key P, Q, R and S could be glucose, cellulose, calcium and iron respectively. Goitre is caused by deficiency of iron. Cellulose is a complex carbohydrate occurs in the cell wall of plant cells and plant fibres.

Ans 3:

Agastya Varshney from Podar International School , Mumbai

Class : Class 7

Please help

Ans 4:

Krithi Manasvini from Alwin Memorial Public School, Chennai