Important one liner Biology Facts, Terms and Definition part-4 (free read in e-library)

Important Biology Terms and Definition part-4 

• Bulb: It is an organ of storages and vegetative reproduction.
• Caffeine: It is a mildly addictive alkaloid found in a number of plants, such as tea, coffee and cola.
• Capillary action: It is the spontaneous movement of liquids up or down narrow tubes such as plant xylem vessels or the spaces existing between soil particles.

 

• Canines: These are sharp pointed tearing teeth near the front of the mouth used for killing prey and ripping of pieces of food.
• Cannabis: It is the source of a fibre and drugs like hashish and marijuana. Also called the Indian hemp or bhang plant.
• Cartilage: It is a flexible bluish-white connective tissue made up of the protein collagen.
• Casein: It is the main protein of milk, from which it can be separated by the action of acid, the enzyme rennin, or bacteria (souring); It is also the main component of cheese
• Carpel: It is the female reproductive organ of a flower (megas-poprophyII) bearing the ovules which mature into seeds after fertilization.
• Cell: It is the smallest functional and structural unit of all living organisms.
• Cereal: It is the grass grown for its edible starch seeds. The term cereal refers primarily to barley and wheat, but may also refer to oats, maize, rye, millet and rice.
• Chlorophyll: It is the green coloured pigment university found in plants, responsible for capturing the energy for photosynthesis.
• Clavicle: It is the collar bone, in humans, it is vulnerable to fracture.
• Cornea: It is the transparent front section of the eye. The cornea is curved and behaves as a fixed lens, so that light entering the eye is partly focused before it reaches the lends.
• Corolla: It is a collective name for the petals of a flower.
• Death rate: It is the number of deaths, measured in the human population as the number of deaths in one year per 1000 of population.
• Deciduous: These are trees and shrubs that shed their leaves before the onset of winter or a dry season.
• Defoliant: It is a chemical sprayed on plants that causes leaves to fall of prematurely.
• Desertification: It is the natural or man-made conversation of arable or forest land into barren deserts.
• Down’s syndrome: It is a human abnormality caused by a mutation in which the ovum has an extra chromosome.
• Ecology: It is the study of structure and function of nature.
• Ectotherm: It is a cold-blooded animal, such as a lizard, that relies on external warmth to raise its body temperature so that it can become active.

 

• Egestion: It is the removal of undigested food or faeces from the gut.
• Enzyme: It is a biological catalyst produced in cells and capable of speeding up the chemical reactions necessary for life by converting one molecule (substrate) into another.
• Epidermis: It is the outermost layers of cells on an organism’s body.
• Faeces: These are remains of food and other debris passed out of the digestive tract of animals.
• Fallopian: It is a tube or oviduct in mammals one of the two tubes that carry ova (eggs) from the ovary to the uterus.
• Fibrin: It is an insoluble blood protein used by the body to stop bleeding.
• Fossil: These are remains or traces of animal and plant life of the past found embedded in rock.
• Fossil fuel: It is the fuel such as coal, oil and natural gas. These are remains of organism embedded in the surface of the earth.
• Fungi: These are primitive members of the plant family.
• Fungus: It is a kind of living thing, a simple plant which cannot make its own food.
• Grafting: It is the process of uniting parts of two plants to form a single plant.
• Habitat: It is the locality or external environment in which a plant or animal lives.
• Haploid: It is an organism or structure having a single set of unpaired chromosomes.
• Herbarium: It is an organized collection of plant specimens for identification and
• reference purposes.
• Hermaphrodite: It is an organism having both male and female reproductive organs in the same individual.
• Horticulture: It is a branch of agriculture dealing with garden crops, generally fruits, vegetables and ornamentals.
• Iris: It is the structure in the vertebrate eye which controls the size of the pupil and hence the amount of light entering the eye.
• Metabolism: It describes all the change that happens inside living things.
• Ossicles: These are the three tiny linked bones in the mammalian middle ear.
• Ovule: It is a somewhat oval body attached to the ovary wall in a flower which matures into a seed after fertilization.

 

• Parasitism: It is a biological association between organisms in which one, the parasite, benefits at the expense of the other, the host.
• Palate: It is in mammals, the ceiling of the mouth.
• Predator: It is an animal that feeds on other animals which are called the prey.
• Radiocarbon dating: It is the method of finding out the age of fossils by determining the amount of radiocarbon remaining in them.
• Retina: It is light-sensitive tissue lining the interior of the vertebrate eye, and consisting of two types of cells.
• Rhizome: It is an organ of vegetative reproduction in flowering plants consisting of a horizontal underground stem growing from a parent plant.
• Root: It is part of a flowering plant that normally grows down into the soil.
• Savannah: It is a grassland with scattered trees.
• Saprophyte: It is an organism that feeds on dead and decaying plants and animals, causing decomposition.
• Short sight: It is Myopia.
• Tropism: It is a plant growth movement in response to a stimulus, for example, light.
• Tuber: It is an organ of vegetative reproduction in flowering plants.
• Transplantation: It is the relocation of seedlings from nursery beds to the actual site of plantation.