Tag: anaemia

Fehling's reagent is a chemical reagent used to differentiate between water-soluble carbohydrates and ketone functional groups. This reagent is used for testing the presence of reducing sugars. Reducing sugars give a positive result to this test due to the presence of oxidisable aldehyde group.

Hepatitis is sometimes caused due to excessive consumption of alcohol. This results to liver cirrhosis. This is called a non-viral hepatitis.

Anaemia is a condition in which is there is shortage of blood or shortage of red blood cells. It results due to loss of blood during accident or pregnancy. It can also results due to insufficient iron in the body to produce enough of haemoglobin.

The process of creating a GM crop can produce many changes in the natural functioning of the plant's genome. Native genes can be mutated, deleted, permanently turned on or off and may change their levels of protein expression. This increasing the levels of an existing protein or even producing a completely new and unknown protein within the crop can act as an allergen in consumers. Hence, foods derived from genetically modified crops are required to be tested for possible allergic reactions in people.

• An allergic reaction occurs due to the hypersensitivity of the immune system to a harmless substance known as an allergen.
• Antibodies are produced by the B-lymphocyte cells which destroy the allergens.
  
• Destruction of allergens by the antibodies causes the release of a chemical substance into the bloodstream called histamine. 
• The release of histamine in a large amount causes swelling of body tissues (inflammation), itching, enlargement of blood vessels and causes bronchospasm.
• So, the correct answer is 'Histamines'.

• Sting of bee causes allergy.
  
• When a bee stings it releases bee venom into the human body which triggers allergic reactions.
• The bee venom contains proteins which affect the skin cells and triggers the immune system to produce antibodies called Immunoglobulin that results in pain and swelling at the site of the sting.
• So, the correct answer is 'Bee'.

• Perennial allergy can be defined as a chronic allergic reaction to house dust.
• House dust contains mould and fungal spores, fibres of the fabric, pet dander and insect particles.
• These allergies occur throughout the year hence, they are called perennial allergy.
• So, the correct answer is 'Perennial'.

i) Chenopodium and Amaranthus also are known as lambs quarters are belonged to family Amaranthaceae and are a major cause of pollen allergies are also considered as weeds or invasive species.

Hay fever is also known as seasonal allergy or allergic rhinitis is look like cold and symptoms are also similar like:-