Organisation of a cell has not been achieved in

Which of the following statements are correct? I. Human RBC is about 7.0 ${\rm{\mu m}}$ in diameter II. Cytoplasm is the main arena of cellular activities III. The shape of the cells may vary with the function they perform IV. Various chemical reactions occur in cytoplasm to keep the cell in the living state Choose the correct option

Difference between prokaryote and eukaryote is in

Which of the following statements are correct? I. Mycoplasmas are the smallest cells II. Nerve cells are some of the longest cells III. Ribosomes are non-membrane bound organelles found only in eukaryotic cells IV. The cytoplasm is the main arena of cellular activities only in plant cells

Kappa particles are

Select the correct fundamental features of cell theory I. All cells are basically alike in their chemistry and physiology II. All living organisms are composed of cells and their products III. Each cell is made of a small mass of protoplasm containing a nucleus inside and a plasma membrane with or without a cell wall outside IV. Activities of an organism are the sum total of activities and interaction of its constituent cells Correct option regarding the statement is

Cell Theory was propounded in 1838 – 39 by

Robert Hooke developed a microscope with which he studied the internal structures of the cell. His work is famous for the study of

Which of the following statements are correct? I. Occurrence of different types of tissues, organs and organ system results in division of labour II. A new cell always develops by the division of a pre-existing cells III. Cells are totipotent IV. Cell is the smallest unit, capable of independent existence and performing the essential functions of life The correct option is

Cell theory was proposed by

Cell Theory was propounded in 1838 – 39 by