Very Short Q & A:
Q1: What are weeds?
Ans : Weeds are unwanted plants that start growing in a field or plot.
Q2: In which three categories can plants be classified?
Ans: Herbs, shrubs and trees.
Q3: What are herbs?
Ans: Plants with green and tender stems are called herbs.
Q4: Stem in shrubs is ______________.
Q5: Stem in shrubs is not very thick.(TRUE/FALSE)
Q6: Herbs are __________in height.
Q7: What kind of stem trees have?
Ans: Trees have hard and thick brown stem.
Q8: Trees are ___________ in height.
Q9: Give an example of any herb.
Q10: The plants with weak stem that cannot stand upright and spread on ground are called ___________.
Q11: Give an example of a shrub.
Q12: Plants take support on neighbouring structure and climb up are called
Q13: Give two examples of tree.
Ans: Mango and banyan
Q14: ___________ conducts water in plants.
Q15: __________absorbs water and minerals from the soil.
Q16: The water and minerals go to all parts of plant through narrow tubes inside stem.(TRUE/FALSE)
Q17: The part of leaf through which it is attached to the stem is ____________.
Q18: What is leaf venation?
Ans: The design made by veins in a leaf is called leaf venation.
Q19: In photosynthesis __________gas is given out.
Q20: What is the broad green part of leaf called?
Q21: What is transpiration?
Ans: Water comes out of leaves in the form of vapour. This is called transpiration.
Q22: The lines in the leaf are called________ and the thick vein in the middle of leaf is called ___________.
Ans: Veins, midrib
Q23: Give an example of climbers.
Ans: Money plant
Q24: Give an example of leaf which shows parallel venation.
Q25: In which part of plant photosynthesis takes place?
Q26: The leaves loose water in the environment through _________.
Q27: Name the different types of roots.
Ans: Tap root and fibrous root
Q28: Some plants have main root called __________ and the smaller roots called ________.
Ans: Tap root, lateral roots
Q29: Give one example of flower with joined sepals and one with separated sepals.
Ans: Jointed sepal-hibiscus and separated sepal-jasmine.
Q30: Name any four parts of a flower.
Ans: Petals, sepals, pistil and stamens
Q31: What are the parts of stamen?
Ans: Anther and filament.
Q32: Sepal is a part of ___________.
Q33: The roots which do not have any main root are called __________.
Ans: Fibrous roots
Q34: Pistil and stamen are parts of flower.(TRUE/FALSE)
Q35: The innermost part of flower is called __________.
Q36: Transpiration and photosynthesis takes place in roots and leaves respectively.(TRUE/FALSE)
Q37: Style and stigma are parts of __________.
Q38: The number of petals, stamens and sepals are different in different flowers. (TRUE/FALSE)
Q39: What is the innermost swollen part of pistil called?
Q40: Transpiration takes place in leaf.(TRUE/FALSE)