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WorksheetsBIOLOGY
Total questions: 10
Worksheet time: 5mins
Plants absorb dissolved nitrates from soil and convert them into
free nitrogen
urea
ammonia
proteins
Most fish do not sink in water because of the presence of:
I. swim bladder
II. air bladder
III. air sacs
IV. air in spongy bones
I and II are correct
II and III are correct
III and IV are correct
I, II, III and IV are correct
Plants synthesis protein from
starch
sugar
amino acids
fatty acids
Photosynthesis generally takes place in which parts of the plant?
Leaf and other chloroplast bearing parts
steam and leaf
Roots and chloroplast bearing parts
Bark and leaf
Movement of cell against concentration gradient is called
osmosis
active transport
diffusion
passive transport
Plants receive their nutrients mainly from
chlorophyll
atmosphere
atmosphere
soil
Pollination is best defined as
transfer of pollen from anther to stigma
germination of pollen grains
growth of pollen tube in ovule
visiting flowers by insects
Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to
angiosperms
gymnosperms
monocotyledons
dicotyledons
Ozone hole refers to
hole in ozone layer
decrease in the ozone layer in troposphere
increase in the thickness of ozone layer in troposphere
decrease in thickness of ozone layer in stratosphere
Ordinary table salt is sodium chloride. What is baking soda?
Potassium chloride
Potassium carbonate
Potassium hydroxide
Potassium hydroxide
