Given below is an example of a structure and the special functional activity
with which it is concerned. Complete the following:- (2.5)
E.g. Pseudopodia - Phagocytosis
1. Torus - ……………………………………….
2. Dictyosomes - ……………………………………..
3. Chromatin - ………………………………..
4. Eye Piece - ………………………………………..
5. Neuron - ………………………………..
Answers
Answer:
geometry, a torus (plural tori) is a surface of revolution generated by revolving a circle in three-dimensional space about an axis that is coplanar with the circle. If the axis of revolution does not touch the circle, the surface has a ring shape and is called a torus of revolution.
Dictyosomes are net-like flat, membrane-bound cavity structures called cisternae which comprise the Golgi apparatus. Proteins are stored in the dictyosomes for further transport, modified, sorted, and packed into vesicles. Golgi Complexes, are compressed stacks of membrane-bound pouches.
Chromatin is a substance within a chromosome consisting of DNA and protein. The DNA carries the cell's genetic instructions. The major proteins in chromatin are histones, which help package the DNA in a compact form that fits in the cell nucleus.
eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as telescopes and microscopes. It is so named because it is usually the lens that is closest to the eye when someone looks through the device.
neuron or nerve cell is an electrically excitable cell that communicates with other cells via specialized connections called synapses. It is the main component of nervous tissue in all animals except sponges and placozoa. Plants and fungi do not have nerve cells.