Related Questions

Which of the following is responsible for transport of food and other substances in plants?
A Xylem
B Phloem
C Chloroplast
D None of these
Those substances which have so far not been resolved by any means into other substances of simpler form are called
A Atoms
B Compounds
C Elements
D Molecules
Read the paragraph and answer the question-photosynthesis is a process in which radiant energy from sun is stored as chemical energy , which in turn is used to decompose carbon dioxide and water. The product of their decomposition are recombined into a new compound which successively builds, up into more and more complex organic substances like sugars, starches and cellulose that comprise the plant.The word stored in the paragraph is closest in morning to
A specified
B retained
C converted
D discovered
Organic Substances which, in very small amounts, control growth and development called
A vitamins
B hormones
C enzymes
D None of the above
The biological decomposition of organic substances in wastes controlled conditions is called
A Incineration
B Biological oxidation
C Composting
D None of these
A garden has to plant tress in rows containing equal number of trees. If he plants in rows of 6,8,10 or 12. then five tress are ledt unplated. But if he plants in rows of 13 tress each, then no tress is left. What is the number of tress that the gardener plants?
A 485
B 854
C 725
D 625
Mrs. Jansen recently moved to Arizona. She wants to fill her new backyard with flowering plants. Although she is an experienced gardener, she isn't very well-versed in what plants will do well in the Arizona climate. Also, there is a big tree in her backyard making for shady conditions and she isn't sure what plants will thrive without much direct sunlight. Her favorite gardening catalog offers several backyard seed packages. Which one should Mrs. Jansen choose?
A The Rainbow Collection is ideal for North-east gardens. It includes a variety of colorful perennials that thrive in cool, moist conditions.
B The Greenhouse Collection will blossom year after year if planted in brightly lit locations and watered regularly.
C The Treehouse Collection will provide lush green plants with delicate colorful flowers that thrive in shady and partially shady locations.
D The Oasis Collection includes a variety of perennials that thrive in dry climates and bright sunlight.
Which one among the following Indian scientist proposed a theory for long distance transport of water in plants?
A J.C. Bose
B Birbal Sahni
C P. Maheshwari
D N.S. Parihar
Which one of the following statements about transport mechanism in plants is correct?
A Diffusion of ions and small molecules across cellmembrane requires energy
B Active transport of ions and small molecules across cell membrane against concentration gradient requires energy
C Cells conserve energy and no energy is required for transport of ions and small molecules against concentration gradient
D Cells do not transport ions across their membrane as these are charged molecules
The method of soil conservation in which bare ground between plants is covered with layer of organic matter like straw is called?
A Mulching
B Contour barriers
C Rock dam
D Terrace farming

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