Read the given statements and select the correct option.
(i) One marize root cell can give rise to more than 17,500 cells.
(ii) A cell in watermelon can increase in size upto 3,50,000 times.
(iii) The growth of pollen tube is measured in terms of length.
(iv) The growth of the leaf is measured in term of surface area.

Single maize root apical meristem can give rise to more than (A)___ new cells per hour whereas cells in a watermelon may increase in size o by upto (B)____ times.

Assertion (A) : Growth is measurable. Reason ( R) : At a cellular level, growth simply means in the amount of protoplasm. One single maize root apical meristem can give rise to more than 17,500 new cells / hour, it is in terms of increase in cell number and cells in the watermelon can increase in size upto 3,50,000, here growth is measured in terms of size of the cells. Therefore Growth is measured in terms of increase in cell number, area, volume, lenght etc.

Read the following statements and find out the INCORRECT statement. a. Plant growth is unique because plants retain the capacity for unlimited growth throughout their life. b. Growth, at a cellular level , is principally a consequence of the increase in the amount of protoplasm. c. One single maize root apical meristem can give rise to more than 3,50,00 new cells per hour , whereas cells in watermelon may increase in size by up to 17, 500 times. d. Environmental signals such as light , temperature and gravity also affect certain phases or stages of growth. e. In geometric growth, following mitotic cell division , only one daughter cell continues to divide while the other differentiates adn matures.

Read the following statements and find out the INCORRECT statement. a. Plant growth is unique because plants retain the capacity for unlimited growth throughout their life. b. Growth, at a cellular level , is principally a consequence of the increase in the amount of protoplasm. c. One single maize root apical meristem can give rise to more than 3,50,00 new cells per hour , whereas cells in watermelon may increase in size by up to 17, 500 times. d. Environmental signals such as light , temperature and gravity also affect certain phases or stages of growth. e. In geometric growth, following mitotic cell division , only one daughter cell continues to divide while the other differentiates adn matures.

Identify the correct and incorrect statements from the following. (i) 17500 new cells are produced per hour by a single maize root apical meristem. (ii) With the help of length, growth of pollen tube is measured. (iii) The growth of the leaf is measured in term of volume. (iv) Cells in a watermelon increase in size by upto 350000 times.

Read the following statements and identify the correct option given. (i) Contractile vacuole takes part in osmoregulation and excretion (ii) Food vacuole are formed by engulfing the food particles. (iii) The vacuole is bound by a double membrane called tonoplast (iv) Vacuole can occupy upto 90 percent of the volume of the cell.