Welcome to your Edexcel AS Biology 5 What happens when carbon monoxide concentration increases in the blood? Heart rate increases. Blood pressure is increased significanty. Decrease in blood supply to the extremeties of the body. The quantity of oxygen transported in the blood reduces.Select the correct statement regarding lung cancer. Lung cancer takes 5-10 years to develop. The most common symptom of lung cancer is coughing up blood. People with lung cancer breathe with ease. People with lung cancer do not get chest pain.Which of the following occurs during the process of expiration? Ribs and sternum move back to their original position. Ribs move upwards and forward. Radial muscles of the diaphragm contract. Pressure within the pleural cavity decreases.Treatment options for lung cancer is dependant on the following factors.a. Type of lung cancer. b. Occurance of metastasis. c. History of genetic diseases. d. Severity of the disease. a & d only b, c & d a & c only a, b & dWhich of the following methods are used to locate tumours in the lungs? Blood test Angiography Ultrasonography CT scanWhich is not an effect of nicotine? It stimulates the nervous system. It dicreases the risk of blood clotting. It helps in releasing the hormone adrenaline. It helps in reducing the diameter of arterioles.A complex lipid absorbed by the small intestine with the help of micelles. Triacylglycerols Diacylglycerols Lecithin Cholesteryl estersWhich of the following is not essential for the external respiration of vertebrates? Respiratory surface Respiratory source Respiratory pigment A well developed olfactory systemThe role of micelles in the digestive system. Aids in the absorption of lipids. Aids in the absorption of proteins. Aids in the absorption of carbohydrates. Aids in the absorption of minerals.Which compound is formed when carbon monoxide combines with haemoglobin? Carbohaemoglobin Oxycarbohaemoglobin Oxyhaemoglobin CarboxyhaemoglobinChoose the correct sequence of structures in which the air passes through upon entering the nose. Pharynx,trachea,larynx,bronchi,bronchioles,alveoli Trachea,larynx,bronchi,bronchioles,pharynx,alveoli Bronchioles,alveoli,pharynx,larynx,trachea,bronchi Pharynx,larynx,trachea,bronchi,bronchioles,alveoliBile salts are formed in the ______ and secreted by the _________. Gall bladder, liver Pancreas, duodenum Liver, gall bladder Duodenum, gall bladderWhich type of cells produce mucus in trachea and bronchi? Monocytes Cartilage cells Goblet cells Adipose cellsPure micelles consist of only ________. Proteins Bile salts Triglycerides CholesterolWhat is the first step of inspiration? Contraction of intercostal muscles. Air flowing into the lungs. Contraction of diaphragm muscles. Relaxation of diaphragm muscles.The 2 components of tobacco smoke that cause short term effects on the cardiovascular system. Nicotine and carbon monoxide Carbon monoxide and hydrogen cyanide Nicotine and ammonia Carbon monoxide and ammoniaA type of muscle which is not used in respiration. Accessory muscles. Intercostal muscles Diaphragm Cardiac musclesWhich is not an adaptation of xerophytic plants to reduce water loss? Rolled leaves Thick waxy cuticles Abundant leaves Stomata in pitsSelect the incorrect statement regarding gills. Each gill has several gill filaments attached. Gill filaments have many gill lamellae. Gill lamellae contains capillaries. Gills are not efficient organs for gas exchange.Which of the following is a treatment option for lung cancer?a. Radiotherapy b. Surgery c. Organ transplant d. Chemotherapy e.Cryotherapy b, a & d b, d & c a & d only a, d & eTime is Up!