The meristematic tissues lack

The secondary walls of cells present in xylem tissues are rigid and thick due to

The tiny organisms observed by Dutch naturalist Leeuwenhoek are known as

The increase in the length of the plant due to the division of apical meristems is called

The shrinkage of the cytoplasm is classified as

The model of cell membrane which states that protein molecules are embedded in lipid bilayer is called

Theodor Schwann reported that all animal's tissues are composed of

The name of the British scientist who discovered the nucleus of the cell is

The organelles which are single membrane and fluid-filled are called

The kind of tissues that are made up of one type of cells are called

The common examples of connective tissues are

The distance between two points at which human eye can differentiate them from each other is called

The most abundant tissue found in animals is

Considering types of the electron microscope, the 'TEM' stands for

The muscles that have voluntary action are

The water movement across the semi-permeable membrane to higher solute concentration solution from a lower solute concentration solution is called

The tiniest blood vessels through which blood cells pass are called

The double membrane which surrounds the nucleus of the cell is called

One lens in a light microscope enlarges the

The epidermal tissues present in leaves and stems are responsible for secretion of

The double membrane organelle which is found in eukaryotic cells is

The concentration environment of guard cells during day time is called

The tissue which is composed of more than single types of cells is considered as

All the organisms are made up of one or more cells and all processes occur in them is the

The resolution of the human eye is

The kind of endoplasmic reticulum to which large numbers of ribosomes are attached is called

The cholesterol is present in the lipid bilayer of

The peptidoglycan is the composition of

The pigment which is necessary for the process of photosynthesis is called

The diffusion process is useful for gaseous exchange in