Page 167 - Biology Form Two

Biology for Secondary Schools

The thick muscular wall separating the left Systemic circulation
and the right sides of the heart The movement of blood between the heart
Sieve tube element and the various parts of the body
A component of the phloem tissue that Systole
acts as a passage for manufactured food The phase of heart beat when the ventricles
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during translocation contract and pump blood into the arteries
Specimen Tissue
A representative item, portion, or quantity A group of specialised cells performing a
of an individual used to represent a group specific function.
or species in scientific studies.
Tongue
Spina bifida A muscular organ in the mouth used for
A spinal disorder in which spine and spinal testing, speech and swallowing
cord of the foetus fail to develop properly Trachea
Sphygmomanometer The tube made up of rings of cartilage
An instrument used to measure blood conveying air to the lungs. It is also called
pressure the windpipe
Stimulus Tracheids
Anything in the environment that may Long tapered cells with pitted walls that
make an organism respond form a system of xylem and conduct water

Stomach in plants
A highly elastic muscular organ that acts Transfusion
as a temporary store of food and where the The transfer of blood from one person (the
major part of food digestion occurs donor) to another (the recipient)

Stomata Translocation
Small pores in the epidermis of leaves that The process by which plants transport
allow gas exchange and transpiration to manufactured food substances throughout
occur in plants their bodies
Storage organs Transpiration
Modified stems, roots, or leaves which act The process by which water evaporates
as food reserves for certain types of plants. from the plant through the stomata in the
Examples are bulbs, corms, tubers, and leaves or lenticels on the stems
rhizomes
Transpiration pull
Sudan III test A tension which draws water from the roots
A test used to confirm the presence of lipids to the upper parts of a plant
in a food sample
Turgid
Symbiosis A state whereby the vacuole of a plant
A type of nutrition which involve a close cell is full of water after being placed in a
feeding relationship between two species hypotonic solution

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