Last seen: May 7, 2021
(a) Schleiden and Schwann
(c) chloroplast
(a) cell wall
In multicellular organisms, the cells divide for reproduction and also multiply for growth. The increase in the number of cells is brought about by ce...
The cell divides and splits into two parts known as daughter cells. The daughter cells are identical to the parent cell. The nucleus of the parent cel...
(i) Vacuoles store the chemical products which accumulate within the cell due to the various life functions taking place inside the cell. (ii) Centr...
1. Nuclear membrane - It separates the nucleus from the cytoplasm. It allows the exchange of substances between the nucleoplasm and the cytoplasm. 2...
Cell size. Some cells are very small and visible only with a microscope. Smallest cell is of bacterium, PPLO. An ostrich egg is the largest animal cel...
(i) Cytoplasm is the fluid present between the cell membrane and the nucleus. Organelles of cells are present in the cytoplasm. These are mitochondria...
1. True 2. False 3. True 4. True
Animal Cell: (i) Cell wall is absent. (ii) Chloroplasts are absent. (iii) Centrosome (a cell organelle that helps in cell division) is present n...
Amoeba is a microscopic organism.
Robert Hooke, an English scientist in 1665 discovered the cell.
Living things are made up of tiny living parts known as cells.
(i) Endoplasmic reticulum being a network of membranes, provides a large surface area for life functions to take place. (ii) Golgi complex collects ...
It protects the cell. It provides shape to the cell. It allows materials to enter and leave the cell through the tiny holes.
When a hen’s egg is boiled, a white material surrounds the yellow part. White material is albumin which solidifies on boiling. The yellow component is...
Nerve cell: Nerve cells receive messages through dendron and transfer it through axon. 2s.png