- Read the following statements regarding transpiration and
select the correct option.
I. Transpiration is the loss of liquid droplets from the
plant.
II. Low atmospheric pressure inhibits transpiration.
III. Transpiration maintains the shape and structure of
plant parts.
IV. Cuticular transpiration takes place only during day time.
(a) I and II only (b) I, II and III only
(c) III and IV only (d) III only - Identify A, B, and C in the given figure showing cyclic
phosphorylation?
A B C
(a) Ferredoxin Plastoquinone Plastocyanin
(b) Plastocyanin Plastoquinone Ferredoxin
(c) Plastoquinone Cytochrome a 3 Plastocyanin
(d) Cytochrome a 3 Ferredoxin Plastoquinone- Match the nutrient elements in column I with their disease
symptoms in column II.
Column I Column II
P. Copper (i) Interveinal chlorosis
appearing first in young leaves
Q. Manganese (ii) Bronze colour in leaves
R. Chlorine (iii) Loss of apical dominance
S. Iron (iv) Interveinal chlorosis
T. Boron (v) Exanthema
(a) P-(ii), Q-(iv), R-(i), S-(v), T-(iii)
(b) P-(v), Q-(iv), R-(ii), S-(i), T-(iii)
(c) P-(iii), Q-(v), R-(iv), S-(ii), T-(i)
(d) P-(v), Q-(i), R-(iii), S-(ii), T-(iv)- Who coined the term ‘root pressure’?
(a) Schwendener (b) Catalado
(c) Stephen Hales (d) Kramer - Consider the following statements and choose the incorrect
one.
(a) Light compensation point is a point in light intensity
when no gaseous exchange is observed between the
environment and the photosynthetic organ illuminated
by that light intensity.
(b) At a very high oxygen content, the rate of photosynthesis
begins to decline in all plants, this phenomenon is
called Warburg effect.
(c) Red light stimulates protein synthesis while blue light
favours carbohydrate accumulation.
(d) Temperature does not influence light reactions of
photosynthesis but affects the enzyme controlled dark
reactions.
Total Marks : 160 Time Taken : 40 Min.T
his specially designed column enables students to self analyse their
extent of understanding of specified chapters. Give yourself four
marks for correct answer and deduct one mark for wrong answer.
Self check table given at the end will help you to check your
readiness.Class XI
s Transport in Plants
s Mineral Nutrition
s Photosynthesis in Higher Plants