Section A Flashcards
During anaerobic respiration in animals. The pyruvic acid is converted to?
Lactic acid
What metabolic waste is excreted by the lungs
Carbon dioxide
The passages that represent air movement in the lungs
Trachea-bronchiole-bronchus-alveolus
The blood vessel that transports absorbed nutrients from the small intestine to the liver is the?
Hepatic portal vein
The gas released during photosynthesis is ?
Oxygen
The main organelle that is involved in cellular respiration?
Mitochondrion
During glycolysis, the glucose molecule is broken down to form
Pyruvic acid, atp and energised hydrogen ions
The gas released during Krebs cycle is?
Carbon dioxide
The tissue lining the inner walls of an alveolus is
Squamous epithelium
The part of the brain that controls the rate of heartbeat and breathing rate is?
Medulla oblongata
The hormone that stimulates conversion glycogen into glucose is
Glucagon
The end product of protein digestion is
Amino acids
The site of chemical reactions of the dark phase is the
Stroma
The function of haemoglobim
•transport of oxygen
• transport of CO2
Ingestion
Intake of food
Digestion
Physical and chemical breakdown of food into its simplest form
Absorption
The products of digestion diffuse into the bloodstream
Egestion
The removal of undigested and unabsorbed waste from the body through the annus in the form of faeces
The reason for boiling the leaf in alcohol during a starch test is to
Breaking cell walls making cells more permeable
The breakdown of a water molecule into hydrogen and oxygen atoms during photosynthesis
Photolysis
Breathing muscle responsible for raising the rib cage during inhalation
Intercostal muscle
Gas required for aerobic respiration
Oxygen
Protective double membrane enclosing the lungs
Pleural / membrane
Structures in the lung where gaseous exchange occur
Alveolus
