Biology Plants Practice Questions

Chlorophyll is the green pigment that captures light energy

Stamen is male part consisting of anther and filament

Oxygen is released as byproduct of photosynthesis

Pistil (carpel) is female part consisting of stigma, style and ovary

Xylem transports water and minerals from roots to leaves

Transpiration is loss of water vapor from aerial parts of plant

Auxin promotes cell elongation and apical dominance

Botany is the scientific study of plants

Roots absorb water and minerals from soil

Leaves are main site of photosynthesis due to chlorophyll

Phloem transports food (sugars) from leaves to other parts

Germination is development of seed into seedling

Carbon dioxide is absorbed from atmosphere

Stomata are pores for gas exchange and transpiration

Ginkgo biloba is called living fossil

Banyan tree (Ficus benghalensis) is national tree of India

Ethylene promotes fruit ripening

Pollination is transfer of pollen from anther to stigma

Cinchona tree bark yields quinine for malaria treatment

Potato is modified stem (tuber)

Pitcher plant (Nepenthes) traps insects

Root hairs increase surface area for water absorption

Xylem vessels and tracheids are dead at maturity

Lotus (Nelumbo nucifera) is national flower of India

Abscisic acid inhibits growth and promotes dormancy

Parthenocarpy is fruit formation without fertilization

Coffee is obtained from Coffea arabica seeds

Onion is modified leaf bases (bulb)

Hevea brasiliensis (rubber tree) yields natural rubber

Chlorophyll absorbs light energy for photosynthesis

Neem (Azadirachta indica) is called wonder tree

Ascent of sap is upward movement of water

Tea is obtained from Camellia sinensis leaves

Carrot is modified tap root

Cytokinin promotes cell division

Anthology is study of flowers

Bamboo and eucalyptus are used for paper making

Nitrogen fixation converts N₂ to usable forms

Rhizobium bacteria fixes nitrogen in root nodules

Cauliflower is immature flower head

Black pepper is called king of spices

Guard cells regulate opening and closing of stomata

Cocoa is obtained from Theobroma cacao seeds

Abscission is shedding of leaves, flowers or fruits

Jute is obtained from Corchorus capsularis

Ginger is modified stem (rhizome)

Gibberellin promotes seed germination

Pomology is study of fruits

Peepal (Ficus religiosa) is called sacred fig