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Solved Examples on Cell: The Unit of Life Question 1: Lignified cell wall is the characteristics feature of [AMU 1998] (a) Phloem (b) Epidermal cells (c) Cambrial cells (d) Xylem cells Answer: d Solution: Lignified cell wall is found in vascular tissues of the plants. Lignification of the cell wall is a complex process occurring exclusively in higher plants. The main function of lignified cell wall is to strengthen the plant vascular body. Question2: Cytoplasm of one cell is connected with other through [CPMT 1996; AFMC 1999; AIIMS 2003] (a) Cytoplasmic strands (b) Plasmodesmata (c) Torus (d) Pit membrane Answer: b Solution: Question3: The substance which makes up about 80% of cytoplasm and has unique structure [CPMT 1971, 78, 84 kerala CET (Med.) 2002] (a) Proteins (b) Fats (c) Minerals (d) Water Answer: d Solution: The cytoplasm consists of cytosol. The cytosol is a complex mixture of cytoskeleton filaments, dissolved molecules, and water that fills much of the volume of a cell.
Question 1: Lignified cell wall is the characteristics feature of [AMU 1998]
(a) Phloem
(b) Epidermal cells
(c) Cambrial cells
(d) Xylem cells
Answer: d
Solution:
Lignified cell wall is found in vascular tissues of the plants. Lignification of the cell wall is a complex process occurring exclusively in higher plants. The main function of lignified cell wall is to strengthen the plant vascular body.
Question2: Cytoplasm of one cell is connected with other through [CPMT 1996; AFMC 1999; AIIMS 2003]
(a) Cytoplasmic strands
(b) Plasmodesmata
(c) Torus
(d) Pit membrane
Answer: b
Question3: The substance which makes up about 80% of cytoplasm and has unique structure [CPMT 1971, 78, 84 kerala CET (Med.) 2002]
(a) Proteins
(b) Fats
(c) Minerals
(d) Water
The cytoplasm consists of cytosol. The cytosol is a complex mixture of cytoskeleton filaments, dissolved molecules, and water that fills much of the volume of a cell.
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