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Ask QuestionPosted by Siddharth Tiwari 4 years, 9 months ago
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Uttam Kumar 4 years, 9 months ago
Posted by Prince Yadav 4 years, 9 months ago
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Meghna Thapar 4 years, 8 months ago
Growth and reproduction cannot be taken as the defining property of all living beings because they are certain living beings in the world which do not show these properties and yet they are living beings. For eg: Drones, Infertile couples cannot reproduce yet they are living. Growth is defined as inversible increase in the number of cells or mass of living structure. If we consider increase in body mass at growth, non living objects like sand mounts grow too. Hence growth cannot be taken as a defining property if living organisms. Though it is a characteristics of living organisms .
Posted by Siddharth Tiwari 4 years, 9 months ago
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Siddharth Tiwari 4 years, 7 months ago
Priyanka Priya 4 years, 9 months ago
Posted by Siddharth Tiwari 4 years, 9 months ago
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Meghna Thapar 4 years, 8 months ago
The digestion of carbohydrates begins in the mouth. The human saliva contains an enzyme called salivary amylase which digests the starch present in the food into maltose sugar. The slightly digested carbohydrates when reaches the small intestine, pancreatic amylase present in the pancreatic juice breaks down the starch. The intestinal juice of the small intestine completes the digestion of carbohydrates and finally coverts it into glucose.
Posted by Anubhav Singh 4 years, 9 months ago
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Yogita Ingle 4 years, 9 months ago
Trichomes are hairs which are often found as epidermal outgrowths. The hairs of aerial parts may be unicellular or multicellular, branched or unbranched.
Function : (a) They enclose stationary air and protect the plant organ against water loss and sudden fluctuation in atmospheric temperature.
(b) In some plants, the hairs are glandular which secrete essential oil and provide characteristic odours to the plant, e.g., Citrus, Ocimum etc.
Posted by Jago Turbine 4 years, 9 months ago
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Meghna Thapar 4 years, 8 months ago
The main components of blood are:
(i) Plasma: It carries all the dissolved substances such as proteins, digested food, common salt etc from one part to another part of the body.
(ii) Red blood corpuscles (RBC): It carries oxygen from the lungs to all the cells of the body.
(iii) White blood corpuscles (WBC): It fights infection and protects us from diseases.
(iv) Platelets: It helps in the coagulation of blood in a cut or wound.
Functions of blood:
(i) It carries oxygen from the lungs to different parts of the body.
(ii) It carries carbon dioxide from the body cells to the lungs for breathing out.
(iii) It carries digested food from the small intestine to all the parts of the body.
(iv) It carries waste product called urea from the liver to the kidneys for excretion in the form of urine.
(v) It protects the body from diseases.
Posted by Priyanka Priya 4 years, 9 months ago
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Meghna Thapar 4 years, 8 months ago
Afferent neurons are pseudounipolar neurons that have a single axon leaving the cell body dividing into two branches: the long one towards the sensory organ, and the short one toward the central nervous system (e.g. spinal cord). These cells do not have dendrites that are typically inherent in neurons.
Posted by Asim Siddiqui 4 years, 9 months ago
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Meghna Thapar 4 years, 8 months ago
The adequate stimulus is a property of a sensory receptor that determines the type of energy to which a sensory receptor responds with the initiation of sensory transduction. The adequate stimulus is the amount and type of energy required to stimulate a specific sensory organ.
Posted by Jatin Singh 4 years, 9 months ago
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Meghna Thapar 4 years, 8 months ago
Congestive heart failure (CHF) is a condition in which the heart's function as a pump is inadequate to meet the body's needs.
Many disease processes can impair the pumping efficiency of the heart to cause congestive heart failure.
The symptoms of congestive heart failure vary, but can include:
- Fatigue
- Diminished exercise capacity
- Shortness of breath
- Swelling (edema)
The diagnosis of congestive heart failure is based on knowledge of the individual's medical history, a careful physical examination, and selected laboratory tests.
The treatment of congestive heart failure can include lifestyle modifications, addressing potentially reversible factors, medications, heart transplant, and mechanical therapies.
Posted by Gitashree Das 4 years, 9 months ago
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Asim Siddiqui 4 years, 9 months ago
Posted by Ankita Kumari 4 years, 9 months ago
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Yogita Ingle 4 years, 9 months ago
| The cells present in the Proximal Convoluted Tubule (PCT) have brush border which is capable of absorption. | Distal Convoluted Tubule (DCT) is the highly coiled part found in the medulla of the kidney. |
| URINE | |
| Proximal Convoluted Tubule (PCT) receives primary urine from glomerulus. | Distal Convoluted Tubule (DCT) receives urine from the glomerulus. |
| RESULTS IN | |
| PCT regulates excretion of urine by absorbing excess water from primary urine. | In DCT, water and salts are secreted. |
| FUNCTION | |
| A small amount of tubular secretion also takes place in the Proximal Convoluted Tubule (PCT). | The secretion of wastes of ions takes place in the Distal Convoluted Tubule (DCT). |
| OTHERS | |
| The substances which are reabsorbed into peritubular network from PCT are glucose, amino acid's, vitamin-c, potassium, Calcium, sodium chloride, 75% of water, etc. | The substances like urea, uric acid, creatinine, sodium, potassium, hydrogen ions are secreted into DCT. |
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Aayushi Attri 4 years, 9 months ago
Posted by Nisha Yadav 4 years, 9 months ago
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Meghna Thapar 4 years, 5 months ago
Human Psychology is the science of mind and human behavior. The general definition may refer to the profession, also referred to as clinical psychology; the scholarly discipline, referred to as academic psychology or educational psychology; or the scientific pursuit, research psychology.
Posted by Aryan Dhyani 4 years, 9 months ago
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Meghna Thapar 4 years, 8 months ago
- Oxygen enters the blood in the lungs:
It is necessary to separate the oxygenated blood from mixing with deoxygenated blood as mammals and birds have high energy needs because they constantly require energy to maintain their body temperature.
Amphibians and many reptiles have three chambered heart. They can tolerate some mixing of the oxygenated and de-oxygenated blood streams. The fish has a two chambered heart. Oxygenation of the blood takes place in the gills. The oxygenated blood from the gills is supplied to the body parts of the fish where oxygen is utilized and carbon dioxide enters into it making it deoxygenated. The deoxygenated blood returns to the heart to be pumped into gills again.
Thus, single circulation is a type of circulatory system in which the blood passes through the heart only once in one complete cycle of the body.
Double circulation is a circulatory system in which the blood travels twice through the heart in one complete cycle of the body.
Posted by Ozil Chullet 4 years, 9 months ago
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Yogita Ingle 4 years, 9 months ago
Photosynthesis is a biological process utilized by all green plants to synthesize their own nutrients. The process of photosynthesis requires solar energy, water and carbon dioxide. The by-product of this process is oxygen.
Dark Reactions:
- Dark reaction is also called carbon-fixing reaction.
- It is a light-independent process in which sugar molecules are formed from the water and carbon dioxide molecules.
- The dark reaction occurs in the stroma of the chloroplast where they utilize the NADPH and ATP products of the light reaction.
- Plants capture the carbon dioxide from the atmosphere through stomata and proceed to the Calvin photosynthesis cycle.
- In the Calvin cycle, the ATP and NADPH formed during light reaction drive the reaction and convert 6 molecules of carbon dioxide into one sugar molecule or glucose.
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