Related InterviewSolutions

• [A]: Sigmoid growth curve consists of four parts [R]: Lag phase is called as grand phase of growthA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
• [A] : Some plants flower only in summers & some only in winters. [R]: Such plants require specific photoperi- ods tor flowering.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
• [A]: Long distance flow of photoassimilates in plants occur through sieve tubes. [R]: Mature sieve tubes have parietal cyto- plasm & perforated sieve platesA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
• [A]: Fundamental factor in the vernalization is low temperature. [R]: Vernalization is ineffective in the absence of oxygen, water and adequate supplies of carbohydrates for respiratory processes.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
• [A]: Rate of transpiration is high in low wind velocity. [R]: Wind removes humid air from around the leaf due to which transpiration is high.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
• [A]: Plants hormones are called phytohor- mones [R]: They increase rate of reaction & acceler- ate growth.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
• [A]: The endogenous level of plant hormones is measured by Bioassay technique. [R]: The concentration ot hormones in plants is so low that is not possible to chemically Estimate the level.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
• [A]: Light is very important external factor of transpiration. [R]: Light induces stomata! opening and darkness stomata! closure. Thus the rate of transpiration increases in light and de- creases in dark.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
• [A]: High pH in guard cells activate phospho- rylase to convert starch into glucose 1-`PO_4` . [R]: Stomata open when pH is lowA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false
• [A]: Action spectra for photosynthesis help to identify the pigments involved. [R]: Because these spectron often closely match the absorption spectra of the pig- ments that take part in photosynthesisA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false