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Anonymous users2024-02-10Children's shoes, you understand the question wrong
The amount of pigment changes either by the amount of change or by the amount.
Let's talk about it carefully.
Pigment Amount|The change refers to the change in the amount of pigment in the leaves, but what is the change? It's that chlorophyll is less than lutein.
In short, this change refers to the change between "the current leaves and the spring leaves", which is the change between the past and the present, not the amount of change.
In the spring, there is more chlorophyll than lutein, and when rice is harvested, there is more lutein than chlorophyll, that is, the "quantity change" of the substances contained in the green leaves
Well, if you think about it this way, if you understand this question in terms of the amount of variation, then the answer is not right, isn't it?
So it must be the content" <
And the chlorophyll will not be reduced, although your idea is quite in line with the explanation of the amount of change, but this is not the case, and at that time it was only more lutein than chlorophyll, so the green was covered, and it would not be at all
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Anonymous users2024-02-09Pigments are constantly being produced! The leaves still need photosynthesis in the fall. It is precisely because the amount of chlorophyll produced is less than that of lutein, resulting in the total amount of lutein exceeding the green color of the leaves, causing the leaves to change color.
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Anonymous users2024-02-08Chlorophyll is less than carotene.
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Anonymous users2024-02-07Not sure what you're asking.
During the harvest season, a large amount of chlorophyll is decomposed and the leaves turn yellow, so the content of chlorophyll is lutein
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Anonymous users2024-02-06Most of the chlorophyll is broken down.
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Anonymous users2024-02-05The amino acids that can reflect the nitrogen nutrient level of rice leaves are ().
a.Methionine Tempai.
b.Asparagine.
c.Alanine.
d.Gan or Glycine.
Correct answer: Asparagine.
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Anonymous users2024-02-042) Step 2: Add concentrations of 10-12mol L and 10-10 to bottles A, B, C and D, respectively
mol/l、l0-8
mol/l、10-6
Mol l of the same amount of auxin solution, add the same amount of water to the E bottle.
Step 3: After 5 rice seedlings have been cultured under the same external conditions for a period of time, measure the root length of 5 seedlings for mambmc respectively
MDME>4)MB>MA>MC>ME>MD This indicates that low concentrations of auxin promote the growth of rice roots, and high concentrations of auxin inhibit the growth of rice roots.
5) Unrelated.
Dizzy, buy a reference book.
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