QUESTION 1 Various options are provided as possible answers to the following questions Choose the correct answer and write only the letter (A to D) next to the question number (1.1 to 1.3) in your ANSWER BOOK, for example 1.4 D. 1.1 The valves in the veins... A trap foreign particles. B increase blood pressure. C pump blood. D prevent the backflow of blood. 1.2 The is the chamber that pumps blood to the lungs. A right ventricle, oxygenated B left ventricle, oxygenated C left ventricle, deoxygenated 1.3 D right ventricle, deoxygenated Contraction of the entire heart takes place in three stages. Select the option with the correct order. Ventricular systole - Atrial systole - General diastole A B Atrial systole - Ventricular systole C D General diastole - Ventricular systole Anal Ventricular systole-general diast QUESTION 2 Give the correct biological term for each of the following descriptions Write only the term next to the question number (2.1 to 2.3) in your ANSWER BOOK 21 22 2.3 The strong, double-wallied sac covering the human heart Blood vessels which transports blood under high pressure Joins arteries to veins QUESTION 3 Study the diagrams which show two cross-sections of mammalian blood vessels and answer the questions that follow

QUESTION 1 Various options are provided as possible answers to the following questions Choose the correct answer and write only the letter (A to D) next to the question number (1.1 to 1.3) in your ANSWER BOOK, for example 1.4 D. 1.1 The valves in the veins... A trap foreign particles. B increase blood pressure. C pump blood. D prevent the backflow of blood. 1.2 The is the chamber that pumps blood to the lungs. A right ventricle, oxygenated B left ventricle, oxygenated C left ventricle, deoxygenated 1.3 D right ventricle, deoxygenated Contraction of the entire heart takes place in three stages. Select the option with the correct order. Ventricular systole - Atrial systole - General diastole A B Atrial systole - Ventricular systole C D General diastole - Ventricular systole Anal Ventricular systole-general diast QUESTION 2 Give the correct biological term for each of the following descriptions Write only the term next to the question number (2.1 to 2.3) in your ANSWER BOOK 21 22 2.3 The strong, double-wallied sac covering the human heart Blood vessels which transports blood under high pressure Joins arteries to veins QUESTION 3 Study the diagrams which show two cross-sections of mammalian blood vessels and answer the questions that follow