Plants Reproduction Quiz PDF: Questions and Answers - 111

MCQ 551: For flowering of plants, the most critical factor is the length of

1. dark period
2. day
3. exposure to light
4. exposure to red light

MCQ 552: The inactive form of pepsin which has the power of destroying the cell's internal structure is known as

1. pepsinogen
2. pectin
3. pancreatic
4. amino pectin

MCQ 553: The coloration of water orange, red or brown are the red tides which are caused by

1. blooms
2. mud
3. dead plants
4. sea anemone

MCQ 554: Enzymes are quite sensitive to change in concentration, temperature and

1. location
2. climate
3. pH
4. pressure

MCQ 555: The walls of any kind of cells and tissues become pitted during

1. differentiation
2. elongation
3. cell division
4. maturation