Q.1: - Name the following
a) Organism which respire anaerobically.
b) Place where lenticels located in plant body.
c) Place where stomata located
d) A grain which is a fruit not a seed.
e) Part of the germinating seed that forms the root
Answers
Answer:
a. Certain prokaryotes, including some species of bacteria and archaea, use anaerobic respiration. For example, the group of archaea called methanogens reduces carbon dioxide to methane to oxidize NADH. These microorganisms are found in soil and in the digestive tracts of ruminants, such as cows and sheep.
b. Lenticels are found as raised circular, oval, or elongated areas on stems and roots. In woody plants, lenticels commonly appear as rough, cork-like structures on young branches. Underneath them, porous tissue creates a number of large intercellular spaces between cells.
c. In botany, a stoma (plural "stomata"), also called a stomate (plural "stomates") is a pore, found in the epidermis of leaves, stems, and other organs, that controls the rate of gas exchange.
d. maize grains
The maize grains are called as a fruit and not a seed because it comes from a separate ripened ovary within the grass inflorescence. In case of maize, the grain has a pericarp of the fruit fused with the seed coat.
e. The primary root, or radicle, is the first organ to appear when a seed germinates. It grows downward into the soil, anchoring the seedling. In gymnosperms and dicotyledons (angiosperms with two seed leaves), the radicle becomes a taproot.
Explanation:
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Answer:
a) Prokaryotes, archea and bacteria.
b) Raised circular, oval areas on stems and roots.
c) Found in epidermis of leaves, stems.
d) Maize grain.
e) Seed.
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