Which of the following are sources of assimilates in plants?
a) green leaves
b) buds, seeds, fruits and roots
c) underground stems
d) both b and c
Explanation: these are the site of production of sugar during photosynthesis
Which of the following are the sinks of assimilates in plants?
a) green leaves
b) buds, seeds, fruits and roots
c) underground stems
d) both b and c
Explanation: they utilize or store sugar
Phloem sap is mainly water and sucrose, which of the following other substances are also transported in phloem?
a) other sugars
b) hormones
c) amino acids
d) all of these
Explanation: this movement is called translocation
Homeostasis In Plants:
Most of plant mechanisms are related with the presence or absence of …..
a) water
b) air
c) soil
d) temperature
In which of the following condition/s, the molar concentration dissolved solutes is same in both inside the cell and outer environment?
a) hypotonic
b) isotonic
c) hypertonic
d) all of these
Explanation: the net movement of water is zero b/w cell and environment
