NEET Botany MCQs

The orientation of cellulose microfibrils in the cell wall plays a crucial role in determining cell shape. If a plant cell has cellulose microfibrils arranged predominantly perpendicular to the direction of cell elongation, what shape is the cell most likely to adopt?

Which enzymatic activity is primarily responsible for loosening the cell wall structure during cell expansion?

The primary cell wall is laid down during which phase of cell growth?

During which stage of interphase are the majority of cellular organelles duplicated?

The cell grows in size and synthesizes proteins primarily during which phase of interphase?

In plants growth occur by … throughout their life span.

Choose an appropriate option to complete the given NCERT statement

The sequence of events by which a cell duplicates its genome, synthesizes the other constituents of the cell and eventually divides into two daughter cells is termed as

Which of the following statements are correct for cell cycle?

I. Cell cycle is the sequence of events involving growth and division of a cell from the time of its formation to its own division into daughter cells

II. Cell growth (in terms of cytoplasmic increase) is a continuous process

III. DNA synthesis occurs only during one specific stage in the cell cycle

IV. The replicated chromosomes (DNA) are distributed to daughter nuclei during cell division

Which of the following statements are correct for ${G_1}$-phase?I. It is the last substage of interphase

II. Cell organelles do not increase in number

III. Both cell and nucleus grow in size

IV. It synthesizes RNAs, proteins and other biochemical for cell growth and subsequent replication of DNA

Choose the correct option

Mitosis is a process by which eukaryotic cells