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Anonymous users2024-02-06= The leaves on a plant are developed from the germ. Also: I don't think leaves are necessarily all developed from germs.
Biological knowledge, you see if it's useful==The embryo includes four parts: germ, hypocotyl, radicle and cotyledon. (1) The germ is located at the top of the embryo, which is the original body of the stem and leaf system of the future plant, and will develop into the aerial part of the plant in the future. (2) The hypocotyl is located between the germ and the radicle and is connected with the cotyledons, which later forms the part where the rhizome is connected.
At the time of seed germination, the growth of the cotyledon is of great help to the cotyledons of some seeds to emerge. (3) The radicle is located under the hypocotyl to provide nutrients for the embryo, which is conical, which is the prototype of the taproot in the seed, which can develop into the taproot of the plant in the future and form the root system of the plant. (4) Cotyledons are the leaves of the embryo, or in other words, temporary leaves, generally 1 or 2 leaves, located on the side of the hypocotyl.
Among angiosperms, the embryo with 1** leaf is called monocots. Those with 2** leaves are called dicots. The embryo of gymnosperms has multiple cotyledons, such as 3 18 cotyledons of Pinus spp., which provide nutrients to seeds without endosperm or transport nutrients to seeds with endosperm.
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Anonymous users2024-02-05The results of bud development in different parts are different, such as: flower buds will develop into flowers, leaf buds will develop into leaves, buds with panicles will develop into lateral branches, apical buds will develop into trunks, mixed buds will develop into branches and leaves or leaves and flowers;
Structure of the shoots:
It can be seen from the figure that: a is the growth point has a strong meristem ability, which belongs to the meristem, which can make the bud axis not break and bury and elongate; B leaf primordium will develop into young leaves in the future; c. The bud primordium will develop into lateral buds, and d. young leaves will develop into leaves; The bud axis will develop into a stem in the future, so the branches of the plant are developed from the buds, so it is correct that "the branches, leaves, and flowers of the plant are developed from the buds".
So the answer is:
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Anonymous users2024-02-041. Green leaves are developed from the germ in the seed, and plants are generally developed from seeds, and the plant has six organs: roots, stems, leaves, flowers, fruits, and seeds.
2. The stem has the function of transporting water, nutrients and supporting flowers, leaves and fruits, and is the part of the central axis of the plant body, in addition, plants spread seeds through wind, water flow, animals, etc.
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Anonymous users2024-02-03The results of bud development in different parts are different, such as: flower buds will develop into flowers, leaf buds will develop into leaves, some buds will develop into side branches, terminal buds will develop into trunks, mixed buds will develop into branches and leaves or leaves and flowers;
Structure of the shoots:
It can be seen from the figure that: a is the growth point of Wangyiji has a strong meristem, which belongs to the meristem, which can make the bud axis continuously elongated; B leaf primordium will develop into young leaves in the future; c. The bud primordium will develop into lateral buds, and d. young leaves will develop into leaves; The bud axis will develop into a stem in the future, so the branches of the plant are developed from the buds, so it is correct to say that the branches, leaves, and flowers of the plant are developed from the buds
Therefore, the answer to the lack of pants is:
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Anonymous users2024-02-02a. The germ develops into the stems and leaves of the plant, a correct;
b. The hypocotyl elongates and develops into a part connecting the stem and the leaf, B is wrong;
c. The radicle develops into the root of the plant, and c. the error;
d. Cotyledons provide or transport nutrients, d error
Therefore, a
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Anonymous users2024-02-01When the seed germinates and returns to hunger, it first absorbs water, and the nutrients of the cotyledons or endosperm are transported to the radicle, germ and hypocotyl of the limbs, and then the radicle develops, breaks through the seed coat, forms a root, the hypocotyl elongates, and the germ develops into stems and leaves
So the answer is:
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Anonymous users2024-01-31Dicotyledon seeds are mainly composed of seed coat and embryo Monocot seeds are composed of seed coat, embryo and endosperm, and embryo is the main structure of seeds, which includes four parts: cotyledon, germ, hypocotyl, and radicle, and the embryo is the structure of developing new plants In the germination process of seeds, the first thing is to absorb water and swell, and the nutrients in the cotyledons or endosperm are transported to the radicle, germ, and hypocotyl Radicle development, breaking through the seed coat and forming roots; The hypocotyl elongates and develops into a site connecting the stem and root; The germ develops into stems and leaves So the germ in the seed will develop into stems and leaves in the future, so the title is correct
So the answer is:
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Anonymous users2024-01-30Answer: A: During the germination of the seed, the radicle develops into the root of the plant, which is the wrong term B:
In the process of seed germination, the hypocotyl elongates and develops into a part connecting the stem and leaves, which is the wrong term C: During the germination of the seed, the germ develops into the stem and leaves of the plant, which is the correct term D: During the germination process of the seed, the nutrients in the cotyledons are dissolved in water to supply the needs of the plant, so the wrong term is selected C
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