Cell: The Unit of Life questions
666 published questions with worked solutions.
- Which of the following maintains the shape of a cell?
- The membrane which allows passage of certain substances more readily than others is termed as
- The cell wall present in water-conducting tissues, represented by swollen nodules, is known as
- Read the following statements regarding porins and select the correct option given below. I. Porins are transport proteins. II....
- Select the wrong statement regarding membrane channels.
- Water channels are possessed by a membrane to facilitate the movement of hydrophilic substances. These channels are made up of
- Statement 1: Washed beetroot slices, when kept in cold water, do not leak β-cyanin pigment outside the cell. Statement 2: The...
- Statement 1: Living plant cells do not burst on keeping in water, while an animal cell like an RBC bursts when kept in water....
- Smaller, lipid-soluble molecules diffuse faster through the cell membrane, but the movement of hydrophilic substances is...
- The cell wall of a plant cell is
- Read the given statements and select the correct one(s). (i) A membrane which permits the passage of pure solvent molecules to...
- Which of the following biological membranes is selectively permeable?
- The plant cell cytoplasm is surrounded by both cell wall and cell membrane. The specificity of transport of substances is mostly...
- Pressure exerted by the cell wall to balance turgor pressure is called
- Grana are ill-developed or absent in the chloroplast in the
- In higher plants, the shape of the chloroplast is typically
- Chloroplasts without grana are known to occur in the
- Chloroplasts align themselves in the mesophyll cell in such a way that their flat surfaces are
- Within the chloroplast, there is a membranous system consisting of I. grana II. stroma lamellae III. fluid stroma
- The thylakoids are aggregated to form stacks of discs called
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