B3 Keywords

Match each term with its correct definition

Term / Definition
  1. Active Transport
/
  1. Smallest blood vessel. Walls are one cell thick

  1. Aerobic
/
  1. Measure of how far food travels from where it has been produced

  1. Alveoli
/
  1. The external surface of an organism

  1. Anaerobic
/
  1. Artery that supplies oxygen and glucose to cardiac muscle

  1. Aorta
/
  1. The drooping of a plant caused when water loss by transpiration exceeds water uptake

  1. Artery
/
  1. Hormone produced by the pancreas that converts glycogen into glucose

  1. Biconcave disc
/
  1. Without oxygen

  1. Biodiversity
/
  1. Drug which suppresses the immune system to prevent rejection of a transplanted organ

  1. Biofuel
/
  1. Pigment found in red blood cells which transports oxygen

  1. Biogas
/
  1. Lacking in oxygen

  1. Capillary
/
  1. Finger-like projection found in the small intestine that increase its surface area, to allow the faster absorption of digested food

  1. Carbon neutral
/
  1. Inability to produce insulin

  1. Concentration gradient
/
  1. Compound formed when haemoglobin transports oxygen

  1. Coronary artery
/
  1. Main artery leaving the left ventricle

  1. Deforestation
/
  1. The movement of water through a partially permeable membrane from an area of low concentration to an area of high concentration

  1. Deoxygenated
/
  1. Pairs of cells mainly in the lower epidermis that control the opening & closing of stomata

  1. Diabetes – Type 1
/
  1. Organ that secretes the hormones insulin and glucagon into the blood stream

  1. Diabetes - Type 2
/
  1. The movement of substance against a concentration gradient, requires energy

  1. Dialysis
/
  1. Fuel produced by the anaerobic breakdown of organic waste by bacteria

  1. Diffusion
/
  1. Hole in epidermis that allows gases to enter a leaf, but also allows water vapour to leave (transpiration)

  1. Food miles
/
  1. Maintaining constant internal condition s in the body e.g temperature

  1. Global Warming
/
  1. Loss of water vapour though the stomata

  1. Glucagon
/
  1. Important gas in biofuel, also a cause of global warming

  1. Glycogen
/
  1. Specialised cell with a large surface area to allow absorption of water and minerals ions

  1. Guard cells
/
  1. Thin walled structures with a large surface area where gaseous exchange occurs

  1. Haemoglobin
/
  1. Presence of specific antigens on the surface of cells that can produce an immune response

  1. Homeostasis
/
  1. The number and variety of organisms found in an area

  1. Hypothermia
/
  1. Large molecule produced to store glucose in the liver & muscles

  1. Immunosuppressant
/
  1. Produced by the kidneys contains urea, excess water and ions

  1. Insulin
/
  1. Change in concentration from one area to another

  1. Methane
/
  1. The movement of specific, useful substances into the blood from the kidney tubule.

  1. Mycoprotein
/
  1. The artificial removal of urea & excess ions/water from the blood

  1. Osmosis
/
  1. Toxic waste product produced in the liver from the breakdown of excess amino acids

  1. Oxyhaemoglobin
/
  1. With oxygen

  1. Pancreas
/
  1. Raising of the Earth’s temperature due to CO2 & methane

  1. Partially permeable
/
  1. Blood supply to surface capillaries is increased to increase heat loss by the dilation of arterioles

  1. Root hair cells
/
  1. Often caused by obesity, insulin produced but cells do not respond to it. Controlled by diet & exercise

  1. Selective reabsorption
/
  1. Transplantation of organs from one species to another

  1. Stomata
/
  1. Liquid fuel produced from biological material e.g maize & sugar cane. It is renewable & sustainable

  1. Surface area
/
  1. A waterproof layer present in some leaves to reduce water loss by evaporation

  1. Thorax
/
  1. Constriction of arterioles that reduces blood flow to surface capillaries to reduce heat loss by radiation

  1. Tissue type
/
  1. Removal of forests by felling, burning etc.

  1. Transpiration
/
  1. Upper part of the human torso, contains the lungs and heart

  1. Urea
/
  1. Protein rich food produced by the growth of fungi

  1. Urine
/
  1. Thick walled blood vessel that transports blood away from the heart

  1. Villi
/
  1. Condition in which the body temperature falls below the normal

  1. Wilting
/
  1. Hormone produced by the pancreas that lowers blood glucose levels – converts glucose into glycogen

  1. Vasoconstriction
/
  1. Process that produces as much CO2 as it uses

  1. Vasodilation
/
  1. Describes a structure that allows the movement of some molecules through it, but prevents other substances

  1. Waxy cuticle
/
  1. Movement of particles from a high concentration to a low concentration down a concentration gradient

  1. Xenotransplantation
/
  1. Shape of a red blood cell, provides a large surface area compared to volume

A = / B = / C = / D = / E =
F = / G = / H = / I = / J =
K = / L = / M = / N = / O =
P = / Q = / R = / S = / T =
U = / V = / W = / X = / Y =
Z = / AA = / BB = / CC = / DD =
EE = / FF = / GG = / HH = / II =
JJ = / KK = / LL = / MM = / NN =
OO = / PP = / QQ / RR = / SS =
TT = / UU = / VV = / WW = / XX =
YY =