the sperm of pteridophytes proceed towards the ovum by the influence of malic acid is
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Pteridophytes or Ferns are usually bisexual plants. The gametophytes of the homosporous ferns contain the female archegonium and the male antheridium.
The Archegonia contains the eggs and the antheridia contains the sperms. When there are chemicals like salts and malic acid, it attracts the sperms to the ovum. So, the sperms use their flagella in order to swim to the egg that is present in the archegonia through the watery media by the action of the attractive forces.
The fertilization result is the formation of a diploid zygote (2n). This zygote develops into the embryo and later grows into the gametophyte. The gametophyte stage then perishes quickly and the embryo grows into a free-living sporophyte. The sporophyte is the green fern that is usually seen.
The Archegonia contains the eggs and the antheridia contains the sperms. When there are chemicals like salts and malic acid, it attracts the sperms to the ovum. So, the sperms use their flagella in order to swim to the egg that is present in the archegonia through the watery media by the action of the attractive forces.
The fertilization result is the formation of a diploid zygote (2n). This zygote develops into the embryo and later grows into the gametophyte. The gametophyte stage then perishes quickly and the embryo grows into a free-living sporophyte. The sporophyte is the green fern that is usually seen.
ana202:
due to which movement??
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3.1 Determine what kind of movements listed below are :
2 x 12 = 24
The stem and branches grow towards the source of light.
erm of fern attracted towards ovum in the attraction of malic acid. 3.2 Name the two plant hormones related with following two functions :
Break dormancy of bud and seed ● Construct callus in the wound.
3.3 Evaluate what work could disrupt if injuries happen in forebrain? 3.4 Name any four reflex-action happen in your body which may happen
daily to protect you from any uncertain danger. 3.5 Differ DNA and RNA with given characters:
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