Plant Physiology With Answers

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Plant Physiology

Sr. # Questions Answers Choice
1 According to pressur e-flow theory one of the following is not a sink Leaves Fruits Root Stem tubers
2 Pressur flow mechanism is about Transporation Translocation of food Opening of stomata Transport of water
3 Waht drives the translocation of organic solutes in plants. Differences in stem length Diffrences in root structure Difference in leaf size Difference in sugar concentration
4 What is the role of companion cells in the translocation process. They stor excess solutes in the phloem they assist in the absorption of water by roots They actively transport sugas into the phloem's sieve tube elements The help regulate water potential in the xylem
5 The sugar moves through pholem is mostly in the form of. Sucrose Lactose Maltose Glouse
6 Which of the following are ways hydrophyes adapt to osmotic condition Developing deep roots Having thick cuticle Producing large leaves Developing sunken stomata
7 Which of the followign are ways hydrophytes adapt to osmotic conditions. Developing deep roots Developing sunken stomata Producing large leaves Having thick cuticle
8 All of the following are the adaptation of exrophytes except. Thick cuticle Sunken stomata Deep root system Large number of stomata
9 The plants, which live completely or partially submerged in fresh water are. Hydrophyte Halophytes Xerophytes Mesophytes
10 Maintenance of internal body temperature is called. Osmoregualation thermoregulation Trnaspiration Excertion
11 Which of the following is not a characteristic of exrophyte. Have deep roots Have broad leaves Less number of stomata is present Presence of parenchyma
12 What is the key role of leaves in managing waste in plants. Storing waste materials Producing chlorophyII Absorbing water from the soil Converting waste into energy
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