MITOSIS
abidaThe type of cell division in which number of chromosomes remains constant in the daughter generations is called mitosis. Mitosis is divided intc four phases: prophase, metaphase, anaphase, and telophase.…
GIBBERELLINS
sanaGibberellin was discovered by Kurosawn in 1928. He observed that a rice. plant was infected by the fungus Gibberella. It showed excessive stein elongation. The symptom is called "Bakanae- disease.…
NUCLEAR ENVELOPE
rubabNuclear envelope encloses the nucleus. So it separates nuclear contents from the cytoplasm. It is continuous with the ER at number of points. Structure .1.1ic nuclear envelope is composed of…
CELL DIVISION
THE CELL CYCLE The period from the time a cell is produced until it completes mitosis is called cell cycle. Cell division occurs during growth and repair processes. Cell cycle…
PLANT HORMONES
The special substances produced by the plants which influence the growth and plant responses are called plant hormones. Plant hormones are auxins, gibberellins, cytokinins, abscisic acid and ethylene. AUXINS The…
OBJECTIVES Of Harvest Energy Stored In Nutrients
Multiple Choice Questions MCQs: Four options are given at the end of each statement. You should encircle.one option from them. The first step of respiration is: (a) ETC (b) Krebs…
NUCLEUS
Nucleus contains most of the genes that control the cell. It is the most conspicuous organelle in the Eukaryota cell. Its average diameter is about 5. It performs two major…
MODEL SUBJECTIVE QUESTION
Describe the process of glycolysis. Discuss evolutionary perspective of glycolysis. Write note on fermentation. Discuss different steps of Krebs cycle. Draw Krebs cycle. Describe different steps of electron transport chain.…
DEFINITIONS AND KEY POINTS
TERMS DEFINITIONS Electron transport chain • The collection of molecules embedded in the inner membrane of the mitochondrion is called electron transport chain Krebs cycle Krebs cycle is a…
GROWTH
The quantitative increase in plant body is called growth. Following processes are involved in the growth and development of plants: Cell division Cell elongation Differentiation of cells into tissues and…