YOU may join our Telegram for all subjects PDF BOOKS.
https://t.me/+Ccx9McEia7wyODg1
TRANSPORT IN PLANTS
Question 121 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Main function of lenticel is ..... [CBSE 2002]
Transpiration | |
Guttation | |
Bleeding | |
Gaseous exchange |
Question 122 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Which one gives the most valid explanation for guard cell movements ..... [MPPMT 1991]
Guard cell photosynthesis | |
Starch hydrolysis theory | |
Potassium influx and efflux | |
Transpiration |
Question 123 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Active K+ exchange mechanism for opening and closing of stomata was given by ..... [BHU 1997]
Darwin sup | |
Levitt | |
Scarth sup | |
Khorana |
Question 124 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Match the columns ..... [KCET 2001]
| a) Girdling experiment | p) Ascent of sap |
| b) Cobalt chloride paper method | q) Transpiration |
| c) Atmometer | r) Unequal transpiration on two surfaces |
| d) Bell jar experiment | s) Translocation in phloem |
a-s, b-p, c-q, d-r | |
a-s, b-r, c-p, d-q | |
a-q, b-p, c-s, d-r | |
a-r, b-p, c-s, d-q |
Question 125 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Stomata open during day due to ..... [Bih PMT 2002]
Accumulation of K+ ion and sugar | |
High pH | |
Osmotic effect of ions present in guard cells | |
None of the above |
There are 125 questions to complete.