Page 163 - Biology Form Two

Biology for Secondary Schools

Digestion Gastric juice
The process by which food is broken down Digestive juice secreted by the gastric
into simpler forms that can be absorbed glands in the stomach
and used in the cells of an organism Gene therapy
Disease Is a medical techniques that modifies gene
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A condition that interferes with the normal to treat or prevents diseases by correcting
functioning of the body genetic condition
Disorder Greenhouse effect
Disruption of normal physical and mental The warming of earth’s surface and lowest
functions of the body layer of the atmosphere caused by the

Duodenum presence of carbon dioxide and other gases
The first part of the small intestine found in the atmosphere
Egestion Growth
The process by which faeces pass into the A permanent and irreversible increase in
rectum and are eventually passed out of size and weight of an organism
the body through the anus Habitat
Environment A specified area or surrounding in which
The surroundings in which an organism an organism lives
lives Haemoglobin
Epidermis The red pigment in red blood cells
Outer most part of the stem or root of a (erythrocytes) which is responsible for
vascular plant transport of oxygen
Epiglottis Haemolysis
A flap of cartilage and fibrous connective Bursting of red blood cells when placed in
tissue which closes the windpipe during a hypotonic solution
swallowing Herbivores

Excretion Animals that feed on plants only
The process by which harmful by-products Heterotrophic nutrition
of metabolism are removed from the body A type of nutrition where organisms obtain
of an organism already manufactured food

Exhalation Holozoic nutrition
The process of expelling air from the lungs A type of nutrition where organisms take
food and digest it internally to get important
Flatulence
The act of passing out intestinal gas nutrients
through the anus Hypertonic solution
A solution with a high solute concentration
Food sample
The small portion of solution or mixture Hyphae
which is taken from the stock for food test Filaments or thread-like structures making
experiments up the fungi

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BIOLOGY FORM 2 NEW.indd 157