Ecosystem And Biosphere

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Our major foods, fibres, spices, fruits and beverage crops are flowering plants.

Flowering plants show the movement due to light.

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Radish is a modified root.

Wilting is a condition when the amount of water lost from the plant during transpiration is greater the amount of water absorbed from the soil. It is the loss of rigidity of non-woody parts of the plants. This occurs when the turgor pressure in non-lignified plant cells falls towards zero, as a result of diminished water in the cells.

Spirogyra is free-floating green algae present in freshwater habitats such as ponds, lakes, etc. Spirogyra is commonly known as water silk or pond silk.

Potato blight is caused by meningitis.

Chromatids is found in a pair in each chromosome.

In bacterial cells, ribosomes are synthesized in the cytoplasm through the transcription of multiple ribosome gene operons. In eukaryotes, the process takes place both in the cell cytoplasm and in the nucleolus, which is a region within the cell nucleus.

Vacuole is responsible for storing water.

Mitochondria contain DNA other than nucleus.

Also called the vacuolar membrane, the tonoplast is the cytoplasmic membrane surrounding a vacuole, separating the vacuolar contents from the cell's cytoplasm.