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BAL BHARATI PUBLIC SCHOOL, PITAMPURA, DELHI-110034 NOTES CLASS 6 TH TERM 2 2013-2014 Getting to know plants Q1 Differentiate between herbs and shrubs A Herbs Short plants upto 1 metre in height shrubs Bigger plants with woody stem Soft stems Woody stem May not have branches Eg maize Branches away from the early part of the stem mango Q2 Identify the plants as herbs shrubs and treesa) rice-Herb b) tomato-herb c) china rose-shrub d)eucalyptus-tree Q3 Differentiate between Climbers and Creepers A Climbers Creepers Small plants with very soft stem which needs support on neighbouring structures and climb up Plants with weak stems that cannot stand upright and spread on the ground Q4A girl in biology laboratory observes a design on different leaves. She identified two particular kinds of pattern. Identify those patterns and write difference between two. A Two pattern are reticulate and parallel venation. Reticulate venation Parallel venation Veins of leaf forms network like design Veins are parallel to each other Q5‘Stem has two way traffic.’ Comment. A Because of 2 reasons1) it conducts water and minerals from roots to different parts of plant 2) it translocate food to different parts of plant Q6A boy covers a leaf with a polythene bag and leaves it for 24 hours. What will he observe and why? A He will observe water droplets because of transpiration. Q7Enlist all the functions of a leaf. A a Photosynthesis b) gaseous exchange c)transpiration Q8What is the function of veins and midrib in a leaf? A Transportation of food,water and minerals Q9Write down the functions of roots. A a) It helps in the conduction of water and minerals from soil to stem b)it stores food c)fix the plant to the soil d)give support and prevent soil erosion Q10Write two points of difference between tap root and fibrous roots. A Tap root Fibrous root There is a main root which grows vertically down There is no main root.it is replaced by a large no. of It is a strong root system fibre like root It is a week root system Q11If we want to identify the kind roots of a plant, how can we find out by observing the leaves? A If the leaves have parallel venation then the plants have fibrous roots.If the leaves have reticulate venation then plants have tap root system Q12Why is it difficult to separate the sprouted young plants from the cotton wool? A Because roots help the plant firmly in the soil. Q13Give few examples of edible root A turnip,carrot Q14Give few examples of edible stem A Potato,onion Q15 Name 4 whorls of a flower A a) sepals b)petals c) stamen d)pistil Q16How are fruits and seeds produced? A Fruits are formed from ovary .Seeds are formed from ovules