Wednesday, February 15, 2012

Arrange the following five events in an order that explains the mass flow of materials in the phloem?

Water diffuses into the sieve tubes

leaf cells produce sugar by photosynthesis

solutes are actively transproted into sieve tubes sugar is transported from cell to cell in the leaf sugar

moves down the stem



Question#2

which of these is incorrectly paired with its life cycle generation?



Stamen-sporophyte

embryo sac-gametophyte

embryo-sporophyte

pollen-gametophyte

anther-gametophyte

Arrange the following five events in an order that explains the mass flow of materials in the phloem?
Answer to question no 1--%26gt; the correct order

http://www.steve.gb.com/science/phloem.h...



1. leaf cells produce sugar by photosynthesis

2. sugar is transported from cell to cell in the leaf

3. solutes are actively transproted into sieve tubes

4. Water diffuses into the sieve tubes

5. sugar moves down the stem

See this site for confirmation

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http://www.steve.gb.com/science/phloem.h...

http://www.mrothery.co.uk/plants/planttr...

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Answer to 2nd question

Stamen should not be paired with sporophyte. Because the stamens are the male parts of the flower and they are made of a stalk called the filament with an anther on top. The anther contains the pollen. Therefore

http://www.vigyanprasar.gov.in/comcom/ki...



it should have been......

Stamen -gametophyte ( along with pollen and anther)

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See this link to check (Please GO to flower part passage)



KICHAMMI: PLANT SEX- TALKS OF GREEN SEX

These definitions may not surprise someone familiar with embryology. ... The stamens. The stamens are the male parts of the flower and they are made of a stalk called ...

http://www.vigyanprasar.gov.in/comcom/ki...



If interested you CAN also READ this review here....

http://www.erin.utoronto.ca/~w3bio153/20...


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