8. ‘Photosynthesis is the conversion of light energy within a plant’ was first stated by
(a) Willstatter and Stoll (b) Mayor and Anderson
(c) Benson and Calvin (d) Robert Mayer
Answer: (d) Robert Mayer
Explanation: (d) Robert Mayer (1845) proposed that light has radiant energy and this radiant energy is converted in to chemical energy by plants, which serves to maintain life of the plants and also animals
(a) Aseptate and multinucleate (b) Septate and multinucleate (c) Aseptate and uninucleate (d) Septate and uninucleate Answer. (b) The mycelium of Aspergillus consist of branch septate hyphae. Cells of hyphae are multinucleate. (185)
(a) Parenchyma (b) Chlorenchyma (c) Plectenchyma (d) Collenchyma Answer. (c) Plectenchyma (Pseudoparenchyma) is nothing but the interwoven mass of fungal mycelium which in cross-section look like parenchyma. (108)
(a) Colletotrichum falcatum (b) Phytophthora infestans (c) Potato mosiac virus (d) Alternaria solani Answer. (b) Late blight of potato is a seed born disease which is caused by Phytophthora infestans. The disease is characterised by brownish to blackish dead areas …
