TLS Online TPP Program

#Question id: 15177


Several mechanisms in alkalophiles for the maintenance of a neutral cytoplasmic pH have been proposed. The plasma membrane may be

#Unit 2. Cellular Organization
  1. Relatively impermeable to protons 
  2. Exchange potassium for protons using an antiport transport system
  3. Exchanging internal sodium ions for external protons
  4. All
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TLS Online TPP Program

#Question id: 10194

#Unit 6. System Physiology – Plant

Some plant species are not able to acclimate when transferred from a sunny to a shady environment, or vice versa, lack of acclimation indicates that these plants are specialized for either a sunny or a shady environment. When plants adapted to deep-shade conditions are transferred into full sunlight may leaves experiences;

TLS Online TPP Program

#Question id: 10195

#Unit 6. System Physiology – Plant

The acclimation of the leaves into the shaded environment shows characteristics of increasing light capturing by having,

TLS Online TPP Program

#Question id: 10196

#Unit 6. System Physiology – Plant

Why are light compensation points lower for shade plants?

TLS Online TPP Program

#Question id: 10197

#Unit 6. System Physiology – Plant

Light compensation point found at which;

TLS Online TPP Program

#Question id: 10198

#Unit 6. System Physiology – Plant

The response of photosynthesis to light in a C3 plant some given effect shows in dark as well as in the light, which of the following effect is not true?

TLS Online TPP Program

#Question id: 10199

#Unit 6. System Physiology – Plant

Some differences is found between plants that normally grow in full sunlight and those that grow in the shade given below;

COLUMN ACOLUMN B
A- SHADED PLANTSi- Light compensation points range from 10 to 20 µmol m–2 s–1
B- SUN PLANTSii- low light Compensation point and have lower maximum photosynthetic rates
iii- Light compensation points range from 1 to 5 µmol m–2 s–1
iv- the respiration rates in plants are very low
v- Plants CO2 assimilation take place very late

Match the correct combination of column A with the column B;