Name: Translocation of Mineral Ions
Uploaded: 2019-07-19
Duration: 8 min 6 s
Description: Translocation of mineral ions occurs in the plants through special channels called phloem. Watch this video to learn how the minerals are absorbed and transl...

Question

Which of the following are sources and which are sink?

a. a nectary in a flower

b. a developing fruit

c. the storage tissue of potato tuber (a storage organ) when the buds are beginning to sprout

d. a potato tuber being formed

Accepted Answer

The assimilates formed in the plants are transported from source to sink through the phloem. A source is a place where the assimilates is located. A sink is a place it has to be moved to and where it is needed for growth and development or storage.
A nectary in a flower and developing fruits are sink because these structures use sucrose produced by photosynthesis and convert it into fructose. The potato tuber being formed is also an example of the sink, that stores sucrose by converting it into starch. The potato tuber, when the buds are beginning to sprout acts as a source that provide nutrients to the developing buds.

Source Sink

a nectary in a flower the storage tissue of potato tuber (a storage organ) when the buds are beginning to sprout

a developing fruit

a potato tuber being formed

Mary Jones, Richard Fosbery, Dennis Taylor and, Jennifer Gregory Solutions for Chapter: Transport in Plants, Exercise 10: Question

Mary Jones Biology Solutions for Exercise - Mary Jones, Richard Fosbery, Dennis Taylor and, Jennifer Gregory Solutions for Chapter: Transport in Plants, Exercise 10: Question

Questions from Mary Jones, Richard Fosbery, Dennis Taylor and, Jennifer Gregory Solutions for Chapter: Transport in Plants, Exercise 10: Question with Hints & Solutions

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