Question

1. Which plastids are colourless?
(a) Chromoplasts
(b) Chloroplast
(c) Leucoplasts
(d) All of the above
(e) None of the above

2. An unripe green fruit changes colour when it ripens. The reason being:
(a) Chromoplasts changes to chlorophyll
(b) Chromoplasts changes to chromosomes
(c) Chromosomes changes to chromoplasts
(d) Chloroplast changes to chromoplasts
(e) None of the above

3. The phenomenon where cytoplasms shrink in a hypertonic medium is called:
(a) Frontolysis
(b) Plasmolysis
(c) Acidolysis
(d) Allolysis
(e) None of the above

4. ________ is called the energy currency of the cell
(a) Endoplasmic reticulum
(b) Oxygen
(c) ATP
(d) Mitochondria
(e) None of the above

5. ________ is called the powerhouse of the cell
(a) Mitochondria
(b) ATP
(c) Lysosomes
(d) Red blood cells
(e) None of the above





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Answer 1

Answer:

Cells use a special molecule for energy called adenosine triphosphate (ATP). Mitochondria is called the powerhouse of the cell.

Answer 2

Answer

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5.Mitochondia.....