Stomata on leaves help in:
APhotosynthesis only
BTransport of water uphill
CStorage of starch only
DGas exchange and transpiration
Answer & Solution
Correct answer: D. Gas exchange and transpiration
1. Stomata are tiny pores on leaf surface flanked by guard cells.
2. Allow gas EXCHANGE (CO₂ in for photosynthesis; O₂ out + O₂/CO₂ in/out for respiration).
3. Also water-vapour LOSS (transpiration), which creates the pull that draws water from roots up the xylem.
_Source: NCERT Class 10 Science Ch 5 §5.1.1 Autotrophic Nutrition + §5.3 Transport_
Related questions
By which process do living things release the energy stored in their food?The nitrogenous waste excreted in largest amount by the human kidney isThe green pigment that captures light energy for photosynthesis isThe human heart is made up ofMost of the absorption of digested food into the blood occurs in theThe enzyme in human saliva that begins the digestion of starch isThe basic filtration unit of the human kidney is theThe exchange of gases in leaves takes place through tiny pores called