Transportation in Animals and Plants MCQs with answers
1. chlorosis is caused due to the deficiency of
(a) calcium
(b) boron
(c) iron
(d) copper
Ans. c
2. active uptake of mineral requires
(a) respiration
(b) expenditure of energy
(c) root metabolism
(d) photophosphorylation
Ans. b
3. the most important use of potassium is that it
(a) provides red colour to fruit
(b) aids photosynthesis
(c) influences enzymatic activity, which regulates many plant processes
(d) helps in the formation of the cambium
Ans. c
4. active transport of molecules from outside to inside across a membrane requires
(a) cyclic AML
(b) acetylcholine
(c) ATP
(d) stimulation exit of like molecules
Ans. c
5. the concentration of ca2+ in phloem sap in comparison to the xylem sap is
(a) more
(b) less
(c) same
(d) variable
Ans. b
6. ‘Die back’ citrus and reclamation’ of legumes and cereals disease occurs due to the deficiency of
(a) copper
(b) zinc
(c) sodium
(d) molybdenum
Ans. a
7. the accumulation of phosphorus is more in
(a) older leaves
(b) older roots
(c) younger roots
(d) younger leaves
Ans. d
8. What is needed for the active transport?
(a) Evolution of heat
(b) Availability of light and heat
(c) The presence of light
(d) Availability of energy
Ans. d
9. Element present in protoplasmic proteins is
(a) K
(b)N
(c) O
(d) Mg
Ans. b
10. Boron in green plants assists in
(a) activation of enzymes
(b) acting as enzyme cofactor
(c) photosynthesis
(d) sugar transport
Ans. d
11. Critical elements are
(a) N, P and S
(b) N, S and K
(c) N, P and K
(d) P, K and S
Ans. c
12. Minerals are absorbed by the plants through
(a) active transport
(b) diffusion
(c) osmosis
(d) pressure flow
Ans. a
13. The most common ion found freely in the cell is
(a) phosphorus
(b) potassium
(c) iron
(d) sulphur
Ans. b
Mineral nutrition class 11 neet mcqs | Multiple choice questions on minerals | Nutrition in plants mcq with answers | Nutrition in plants mcq | MCQ on mineral nutrition | Transportation in plants and animals class 7 mcq
14. Closure of stomata is due to
(a) efflux of K+
(b) influx of K+
(c) influx of Na +
(d) efflux of Na
Ans. a
15. The brown colour of leaves of cabbage is due to the deficiency of
(a) phosphorus
(b) nitrogen
(c) sulphur
(d) calcium
Ans. a
16. Enzyme catalysed reaction can be stopped by
(a) Zn2+
(b) Cu 2+
(c) Hg2+
(d) Mg2+
Ans. c
17. Reduced availability of nitrogen during late growth causes
(a) increase in the carbohydrate content of fruits and storage organs
(b) decrease in the carbohydrate content of fruits and storage organs
(c) increase in the ethylene content of fruits and storage organs
(d) decrease in the ethylene content of fruits and storage organs
Ans. a ‘
18. A fertiliser has a formula of three figures 15-9-9, it stands for the percentage of
(a) N. Ca and Mg
(b) Mg, P and K
(c) Ca, N and Fe
(d) N, P and K
Ans. d
Transportation in Plants and Animals class 7 mcq
19. Anumber of minerals like Ca, Mg and K are held over tuhe surface of clay particles because the later are
(a) negatively charged
(b) positively charged
(c) neutral
(d) having both positive and negative residual valencies
Ans. a
20. Which of the following is not a micronutrient?
(a) Mo
(b) B
(c) Zn
(d) Mg
Ans. d
21. Molybdenun is involved in plant metabolism in
(a) translocation of solutes
(b) nitrate reduction
(c) tryptophan synthesis
(d) ascorbic acid synthesis
Ans. b
22. Cohesion transpiration pull theory operates only in
(a) passive water absorption
(b) active water absorption
(c) conditions favouring transpiration
(d) conditions restricting transpiration
Ans. a
23. The term ‘root pressure’ was coined by
(a) Priestley (1729)
(b) Stephen Hales (1727)
(c) Sachs (1809)
(d) JC Bose (1923)
Ans. a
24. According to the transpiration cohesion theory, the upward pull of water is transmitted to other water molecules by cohesion, which is caused by
(a) hydrogen bonds
(b) hydrophilic cell walls
(c) turgor pressure
(d) osmosis
Ans. a
Transportation in Plants and Animals class 7 quiz
25. The force of tension-cohesion exceeds root pressure on
(a) rainy day
(b) fog morning
(c) sunny day
(d) full moon night
Ans. c
26. Who was the first to suggest that the upward movement of water takes place by imbibition?
(a) Sachs (1874)
(b) Boehm (1809)
(c) Weatherley (1963)
(d) Unger (1868)
Ans. d
27. Difference between the term ‘adhesion’ and ‘cohesion’ is
(a) adhesion is union of similar parts
(b) cohesion is the adhesion of dissimilar parts
(c) both are wrong
(d) both are right
Ans. c
28. Supply ends in transport of solutes are
(a) green leaves
(b) roots and stem
(c) xylem and phloem
(d) hormones and enzymes
Ans. c
29. The main mechanism(s) determining the direction of short distance transport within a potato tuber is (are)
(a) determined by the structure and function of the tonoplast of tuber cells
(b) diffusion due to concentration differences and bulk flow due to pressure differences
(c) not affected by temperature and pressure
(d) pressure flow through the phloem
Ans. b
30. Ascent of sap takes place through
(a) cambium
(b) phloem
(c) xylem
(d) epidermis
Ans. c
31. The direction of the conduction of food through phloem is
(a) from bottom to top
(b) from top to bottom
(c) Both of the above
(d) phloem never conducts food
Ans. c
32. Root pressure does not takes an active part in the ascent of sap because it is
(a) not found in all plants and water can rise in the absence of root
(b) seen during most favourable periods like spring or rainy season
(c) never found to exist in the plants
(d) Both (a) and (b)
Ans. a
33. The element required by an enzyme urease to hydrolyse urea by living organisms is
(a) boron
(b) calcium
(c) phosphorus
(d) nickel
Ans. d
Transport in Plants class 11 neet questions
34. Enzyme catalysed reaction can be stopped by
(a) Hg+
(b) Cu
(c) Mg2+
(d) None of these
Ans. a
35. Brown heart disease in turnip is due to the deficiency of
(a) K
(b) Mo
(c) B
(d) Fe
Ans. c
36. Identify the well known trace element
(a) Fe
(b) Mg
(c) Cu
(d) S
Ans. c
37. Sulphur is required by the plants for
(a) protein synthesis
(b) glucose synthesis
(c) ATP synthesis
(d) vitamin synthesis
Ans. d
38. Bacteria involved in denitrification is
(a) Nitrococcus
(b) Nitrosomonas
(c) Pseudomonas
(d) Azotobacter
Ans. c
39. Zinc is an activater of
(a) amino acid oxidase
(b) PEPCO
(c) tryptophan synthetase
(d) succinic acid dehydrogenase
Ans. d
40. Element directly absorbed by plants from soil is
(a) C
(b) H2
(c) N
(d) B
Ans. d
41. What special mode of transport via phloem is applicable in angiospherms?
(a) Action theory
(b) Flow theory
(c) Pressure flow theory
(d) Pressure theory
Ans. c
42. ATP and proteins is supplied to the companion cells through
(a) sieve tubes
(b) cell wall
(c) porous wall
(d) vascular tissues
Ans. a
43. Aeroponics is called as
(a) soil less cultivation of plants
(b) vivipary
(c) parthenocarpy
(d) phytotorn
Ans. a
44. Which of the following is a correct list of contexts of organic material in soil ?
(a) Humus, roots, and decomposed material
(b) Roots and small animals
(c) Minerals, small animals and roots.
(d) Small animals, humus and roots
Ans. a
