Meristematic cells do not show the property of storage of food. Rest of the statements are characters of meristem.

The displacement is the shortest path between initial and final position. Displacement = AC = (Under Root) √AB₂ + BC₂ = (Under Root) √15₂ + 20₂ = 25 m

Displacement is a vector quantity, it means its value can be positive, negative or zero.

As distance is the actual path covered, while displacement is the shortest path between initial and final position. So, Distance ≥ Displacement

Momentum, p = mv = 4 x 4 = 16 kg-m/s

We know that, Momentum = mass X velocity P = mv = kg-m/s Or = kg-ms⁻₁ So, SI unit of momentum is kg-m/s.

Balanced forces cause a change in shape of object without change in its state of motion.

In plant cells, in addition to the plasma membrane, another rigid outer covering is present called cell wall. It lies outside the cell membrane.

The cell theory was proposed by Schleiden and Schwann in 1839, postulating that all living beings are composed of cells and their products. In 1855, Rudolf Virchow modified the cell theory with his postulate, “Omnis cellula-e-cellula”, which means, a new ...

Cutin is protective, hydrophobic, waxy covering produced by epidermal cells of leaves, young shoots and other aerial parts. It minimises the water lost through transpiration (with the help of stomata) and also reduces pathogen entry. Lignin hardens the cell wall ...