diksha bhatla  
26 May 2022   

Nucleic acids are long polymers of nucleotides. While DNA stores genetic information, RNA mostly helps in transfer and expression of information. ...

diksha bhatla  
26 May 2022   

In humans, the excretory system consists of one pair of kidneys, a pair of ureters, a urinary bladder and a urethra. Each kidney has over a millio...

diksha bhatla  
25 May 2022   

All organisms are made of cells or aggregates of cells. Cells vary in their shape, size and activities/functions. Based on the presence or absence...

diksha bhatla  
26 May 2022   

Growth is one of the most conspicuous events in any living organism. It is an irreversible increase expressed in parameters such as size, area, le...

diksha bhatla  
26 May 2022   

Plants unlike animals have no special systems for breathing or gaseous exchange. Stomata and lenticels allow gaseous exchange by diffusion. Almo...

diksha bhatla  
26 May 2022   

Green plants make their own food by photosynthesis. During this process carbon dioxide from the atmosphere is taken in by leaves through stomata a...

diksha bhatla  
25 May 2022   

Anatomically, a plant is made of different kinds of tissues. The plant tissues are broadly classified into meristematic (apical, lateral and int...

diksha bhatla  
25 May 2022   

Root system is either tap root or fibrous. Generally, dicotyledonous plants have tap roots while monocotyledonous plants have fibrous roots. The r...

diksha bhatla  
21 May 2022   

Biological classification is defined as the process of grouping organisms according to certain similarities.Linnaeus proposed the two kingdoms of ...

diksha bhatla  
23 May 2022   

Plant kingdom includes algae, bryophytes, pteridophytes, gymnosperms and angiosperms. Algae are chlorophyll-bearing simple, thalloid, autotrophic ...

diksha bhatla  
26 May 2022   

Two major environmental issues of global nature are increasing greenhouse effect, which is warming Earth, and depletion of ozone in the stratosphere...

prakash joshi  
17 May 2022   

the first chapter of class 11th Biology NCERT...

prince joshi  
16 Apr 2020   

 Vitamins are the organic catalysts found in food in minute traces and have no calorific value but they are vital to physiological proce...

jagriti  
18 Nov 2019   

There are billions of species on earth with tones of differences and similarities too. Classification is important to categorise and find deta...

jigisha mehra  
27 May 2022   

List of Vitamins & Minerals - Chemical names, Deficiency diseases and Sources...

jigisha mehra  
25 Oct 2021   

respiratory substrate ...

prakash joshi  
16 Apr 2020   

Vitamin A, D, E, And K are fat-soluble vitamins. Vitamin A is unsaturated primary alcohol (Retinol). Structurally it is related to the plant pigment c...

prakash joshi  
4 May 2020   

Water-soluble vitamins include vitamin B-complex (Vit. B1, B2 or Riboflavin, Nicotinic acid, Pantothenic acid, Pyridoxine, or B6, Folic Acid, Vit....

jagriti  
19 Nov 2019   

The domain is the highest order and species is the lowest order category.Biologists, such as Ernst Haeckel (1894), Robert Whittaker (1959) and Car...

jagriti  
20 Nov 2019   

Robert Whittaker grouped organisms into...

jagriti  
2 Dec 2019   

Discovery of cell was proposed by Robert Hooke in 1665 and he himself saw the cell under microscope and thus credited with the discovery of cell...

pharmacy exams  
22 Mar 2021   

Blood is specialized fluid connective tissue, transports nutrition, water and oxygen to various tissues and organs. circulates in closed vessels. sl...

jagriti  
4 Dec 2019   

 The different organs made by different kinds of cells perform different functions. For example – the stomach performs digestion of food, lungs pe...

jagriti  
6 Dec 2019   

Mitosis occurs continuously inside the body or somatic cells.Daughter cells have a  diploid number (2N)  of chromosomes like their parent pl...

jagriti  
25 Dec 2019   

Meiosis is the process by which a single cell is divided twice into four cells by containing half of the genetic information or chromosome of the pa...

jagriti  
16 Jan 2020   

Living cells are bound by a membrane called the plasma membrane, also known as the cell membrane controls entry and exit of any substance like min...