The function of ___________ is to protect the embryonic plant.
The outer coat (testa)
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15
The process of the fusion of the nuclei of pollen and ovum is called ________ .
Fertilisation
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15
Fruits develop from the ________ and seeds develop from the ________ .
Ovary;Ovules
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15
Annual tree rings are made of? a.xylem b.phloem
a.xylemÂ
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15
Why different fruits have different number of seeds?
Because different plants have different number of ovules.
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15
Where is micropyle found?
Micropyle is found on the opposite of the tip of the radicle.
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15
Why pollen grows a tube?
Since it has no 'tail' to swim and needs to meet the ovum , it grows a tube to help it slide down to the ovary.
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15
Which of the following are true regarding phloem? 1.It transports water from the roots to the leaves. 2.It transports sucrose from the leaves to the roots. 3.It is located lateral to xylem in tree stems.
2. and 3.
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15
Does the seed of this plant contain one or two cotyledons?
Two cotyledons.
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In what directions do sugars move in phloem?
Two directions. (Bidirectional)
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15
The primary function of xylem is _________.
To transport water from the roots to the leaves.
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15
The first part to push its way out of the seed during germination is?