CBSE Revision Notes

Excretory Products and their Elimination Class 11 Notes – Chapter 19

Modes of excretion – ammonotelism, ureotelism, uricotelism; human excretory system – structure and function; urine formation, osmoregulation; regulation of kidney function – renin – angiotensin, atrial natriuretic factor, ADH and diabetes insipidus; role of other organs in excretion; disorders – uraemia, renal failure, renal calculi, nephritis; dialysis and artificial kidney.Please refer Excretory Products and their Elimination Class 11 Notes for more revision notes.

Body Fluids and Circulation Class 11 Notes – Chapter 18

Seed  germination;  phases  of  plant  growth  and  plant  growth  rate;  conditions  of  growth;  differentiation, dedifferentiation  and  redifferentiation;  sequence  of  developmental  processes  in  a plant  cell;  growth regulators -auxin, gibberellin, cytokinin, ethylene, ABA; seed dormancy; vernalisation; photoperiodism. Please refer Body Fluids and Circulation Class 11 Notes for more revision notes.

Breathing and Exchange of Gases Class 11 Notes – Chapter 17

Respiratory organs in animals (recall only); Respiratory system in humans; mechanism of breathing and its regulation in humans – exchange of gases, transport of gases and regulation of respiration, respiratory volume; disorders related to respiration – asthma, emphysema, occupational respiratory disorders. Please refer Breathing and Exchange of Gases Class 11 Notes for more revision notes.

Digestion and Absorption Class 11 Notes – Chapter 16

Food is an important component for sustenance and growth for any living organism. Humans have evolved specialized systems that can convert food into energy and disperse the same to all cells in the body. The human digestive system is a series of interconnected organs that span from the mouth and ends at the anus. Please refer Digestion and Absorption Class 11 Notes for more revision notes.

Plant Growth and Development Class 11 Notes – Chapter 15

Plant Growth and Development:
Growth is defined as an irreversible change in physical form. In plants, a combination of cell growth and cell division results in an almost indefinite growth. This ability is due to the presence of tissues called meristems at certain parts of the plant body. Please refer Plant Growth and Development Class 11 Notes for more revision notes.

Respiration in Plants Class 11 Notes – Chapter 14

Respiration in Plants:
Plants perform photosynthesis to create sugars (such as glucose), this, along with oxygen is used to produce energy which is used in the plant’s growth. This process of respiration is essentially the process of photosynthesis but in reverse. please refer Respiration in Plants Class 11 Notes for more revision notes.

Respiration in Plants Class 11 Notes – Chapter 14

Respiration in Plants:
Plants perform photosynthesis to create sugars (such as glucose), this, along with oxygen is used to produce energy which is used in the plant’s growth. This process of respiration is essentially the process of photosynthesis but in reverse. please refer Photosynthesis in Higher Plants for more revision notes.

Photosynthesis in Higher Plants Class 11 Notes – Chapter 13

Photosynthesis is a process by which plants create their own food by using sunlight. This process was first seen more than 3.4 billion years ago in organisms that were similar to bacteria. Evidence showed that they did not absorb visible light, instead, they used near-infrared and produced sulphur or sulphate compounds. It would be another 470 million years until the first land plants emerged. Please refer Photosynthesis in Higher Plants Class 11 Notes for more revision notes.

Mineral Nutrition Class 11 Notes – Chapter 12

Like every other living organism on earth, plants need nutrition to sustain themselves. They can acquire nutrition and water from the soil, air and water. However, not all minerals that are absorbed by the plants are useful. Out of the 118 elements discovered so far, less than 21 are deemed to be useful and essential for the plants. Please refer Mineral Nutrition Class 11 Notes for more revision notes.

Transport in Plants Class 11 Notes – Chapter 11

Every other living organism needs to transport nutrition across its system and waste materials away from it. Humans have their own specialized transportation system that enables efficient transportation of nutrients to every cell in the body. Similarly, plants have their own specialized system that enables it to distribute water and nutrients throughout its body. Please refer Transport in Plants Class 11 Notes for more revision notes.