Tag: structure of a plant cell
Questions Related to structure of a plant cell
Pectic material are stained with
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Cotton blue
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Acetocarmine
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Iodine
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Methylene blue
Pectic substances are a group of polysaccharides in plant cell walls and some mucilages, which are endowed with multifunctional properties, such as the control of cell wall integrity and porosity. Methylene blue is used to indicate whether the cells are dead or alive.
The plant cells central vacuole
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Provides the plant cell with support
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Stores nutrients and cellular waste products
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Is a reservoir for water
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All of the above
So, the correct answer is 'all of the above'.
Plant cells need a protective cell wall around their cells because
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they are far more important than the animal cells
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they cannot move and protect themselves from the extreme weather conditions
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they are prokaryotic cells
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None of the above
The Eukaryotic cells, in addition to the nucleus, have many membrane-bound organelles like the mitochondria, endoplasmic reticulum, Golgi bodies etc. Such membrane-bound organelles are absent in the Prokaryotic cells
Casparian Strips are found on the
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Walls of pericycle cells
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Walls of endodermal cells
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Walls of epidermal cells
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Walls of bundle sheath cells
The barrier between protoplasm and other environment in a plant cell is
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Cell wall
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Nuclear membrane
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Tonoplast
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Plasma membrane
In the plant cell, plasma membrane and cell wall both are present, both act as a barrier between protoplasm and the outer environment.
A plant cell has
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Cell wall
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A number of small vacuoles
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A few large vacuoles
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A single central vacuole
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Both A and D
- A plant cell has a cell wall and single central vacuole.
- Plant cells are eukaryotic cells that differ in several key aspects from the cells of other eukaryotic organisms.
- Their distinctive features include:
- A large central vacuole
- A cell wall composed of cellulose and hemicellulose
- Specialized cell-to-cell communication pathways known as plasmodesmata
When a plant cell is placed in pure water, it?
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Expands until the osmotic pressure reaches that of water
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Becomes less turgid until the osmotic potential reaches that of pure water
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Becomes more turgid until the pressure potential of cell reaches its osmotic potential
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Becomes more turgid until the osmotic potential reaches that of pure water
Draw well labelled diagram of the following
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plant cell
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Animal cell
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prokaryotic cell
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Nerve cell
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striated and smooth muscles
In a plant cell, O.P. is equal to?
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T.P. $-$ D. P.D.
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D. P. D. $-$ T.P.
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T.P. $-$ D.P.
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D. P.D. $+$ T.P.
The inclusion like raphides, druses and sphaeraphides can be mainly found in which of the following cells?
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Prokaryotic
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Protozoan cells
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Hygrophytic plant cells
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Xerophytic plant cells
Plant cells sometimes form mineral crystals. Calcium carbonate occurs as a mass of crystals around a cellulose core to form cystolith (eg, leaf of Banyan). In several plants, calcium oxalate forms needle-like raphides, prismatic crystals, star-shaped sphaeraphides or Druses or powdery mass named as crystal sand.