1 A cell will swell up if (a) The concentration of water molecules in the cell is higher than the concentration of water molecules in the surrounding medium. (b) The concentration of water molecules in the surrounding medium is higher than the concentration of water molecules in the cell. (c) The concentration of water molecules is same in the cell and in the surrounding medium (d) The concentration of water molecules does not matter. Q 2. Which of the following statement marks as a difference between plant cell and animal cell? (a) Plant cells have cell wall which animal cells do not. (b) Plant cells do not have vacuole while animal cells do have. (c) Plant cells have only cell membrane while animal cells have both cell wall as well as cell membrane. (d) Plant cells have more plastids while animal cells have few plastids. Q 3. Endoplasmic reticulum one of the cell organelles, exists as a membranous network that extends from outer membrane of nucleus to the plasma membrane making a connection between them. Which of the following statements is not related to the endoplasmic reticulum (a) It behaves as transport channel for proteins between nucleus and cytoplasm. (b) It transports materials between various regions in cytoplasm. (c) It can be the site of energy generation. (d) It can be the site of some biochemical activities of the cell. Q 4. Among the following statements which one is incorrect? (a) Golgi apparatus is involved in the formation of lysosomes. (b) Nucleus, mitochondria and plastid have DNA, hence they are able to make their own structural proteins. (c) Lysosomes are called the suicide bags as they eat up their own cells. (d) Cytoplasm is known as protoplasm. Q5. Cell is the structural and functional unit of life. The word cell is derived from the Latin word ‘cellula’ which means “a little room”. Can you name the scientist who coined the term cell? (a) Robert Hooke (b) Anton Von Leeuwenhoek (c) Robert Brown (d) Ernst Haeckel please tell the answers only inappropriate 1 will b reported
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Answer:
1, (b) The concentration of water molecules in the surrounding medium is higher than the concentration of water molecules in the cell.
2,(a) Plant cells have cell wall which animal cells do not.
3,(c) It can be the site of energy generation.
5,(a) Robert Hooke
1. b
2. a
3. c
4.sorry but I am confused between c and a
5. a
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