Wednesday, 11 February 2015


The plant hormone which is essential for cell division is ?
Cytokines  are a broad and loose category of small proteins that are important in cell signaling. They are released by cells and affect the behavior of other cells, and sometimes the releasing cell itself.They are different from hormones, which are also important cell signaling molecules, in that hormones circulate in much lower concentrations and hormones tend to be made by specific kinds of cells.They are important in health and disease, specifically in host responses to infection, immune responses, inflammation, trauma, sepsis, cancer, and reproduction.

The gap between two neurons is called ?

Synapse (In the nervous system, a synapse is a structure that permits a neuron (or nerve cell) to pass an electrical or chemical signal to another cell (neural or otherwise).

The movement of a potted plant kept in a room is start to bent toward the  direction of light is known as  ?

Phototropism (If you put a plant in a window you may notice that after a few days it has bent toward that window. This is because the plant needs sunlight to make energy, and so it grows toward the light. The growth of a plant toward any stimulus is called tropism, and the growth of a plant toward a light stimulus is called phototropism)
What is Hydrotropism ?
Hydrotropism is the movement of the plant parts induced by water. The movement of root is the example for positive hydrotropism and the movement of stem is the example for the negative hydrotropism.
What is Chemotropism ?
Chemotropism, is the movement of the plant parts induced by the chemicals. Pollen tube movement towards the ovules during the process of fertilization is an example for the positive chemotropism.

What is Geotropism ?
Geotropism, is the movement of the plant parts induced by the gravity. The movement of root towards the gravity is the example for positive geotropism and the movement of stem away from gravity is the example for negative geotropism.

Tropic movement are?
Unidirectional(movements of curvature that respond to the direction of the external stimulus. Movement may be toward the same direction as the stimulus (positive tropism), opposite (negative tropism), or at any intermediate angle (between 0° and 90°). Tropic responses are due to differential growth in tissues adjacent and away from the stimulus)
Which is growth inhibitor hormone in plant ?
Abscisic acid

Part of brain which control heart beat,respiration and peristalsis(
Peristalsis is a series of muscle contraction to move food through digestive system) is ?
Medulla oblongata(It controls involuntary function of the body)

Which body organ is surrounded by meninges ?

Brain and Spinal code(The primary function of the meninges and of the cerebrospinal fluid is to protect the central nervous system. The pia mater is the meningeal envelope that firmly adheres to the surface of the brain and spinal cord.)

Gustatory receptors are specialized  in detecting ?


No comments:

Post a Comment