Phloem Transport: Flow from Source to Sink

Translocation of organic materials in plants is explained by

Which one of the following is a protein deficiency disease?

"Girdling Experiment" was performed by Plant Physiologists to identify the plant tissue through which:

Osmotic pressure in sink is continuously low because in sink –

Meaningful girdling (ringing) experiments cannot be done on sugarcane because

Sink and source in sucrose transport may be reversed depending upon

Carbohydrates are commonly found as starch in storage organs of plants. Which of the following five properties is performed by starch $(1-5)$ in the storage process?

$\left(1\right)$ Easily translocated
$\left(2\right)$ Chemically non-reactive
$\left(3\right)$ Easily digested by animals
$\left(4\right)$ Osmotically is inactive
$\left(5\right)$ Synthesized during photosynthesis

The useful properties are

Select the incorrect statement from the following.

Which of the following experiment shows that food in plant is transported through phloem?

When sugar is added at source, the water potential of sucrose _____ and when sugar is removed from sink, the water potential of sink _____ .

What is the means of transport through which sucrose moves into sieve tube of source and out of sieve tube at sink?

The accepted mechanism for translocation of sugar from source to sink is called

Which of the following is translocated through phloem?

Sink and source in sucrose transport may be reversed depending upon

Read the following statements and select the correct option:

I. Translocation of organic solutes through the phloem is bidirectional.

II. The relationship between source to sink is not constant, but variable.

How does phloem transport sap?

What is bidirectional measurement?

Does phloem contain sap?

The combination of numbered terms that correctly completes all the following statements is

i. Transport through the phloem is __1__ while transport through the xylem is __2__.

ii. Loading of sugars into the phloem is __3__ at the source.

iii. Movement of water out of the phloem at the sink is __4__.

According to the pressure flow hypothesis
A. Phloem loading produces a hypertonic condition in the sieve tubes.

B. Water potential gradient facilitates the mass movement in the phloem.

C. Phloem unloading is a passive process.