SASS Sec 3 Bio Transport in Humans Quiz

6093 Biology Closed-book assessment SASS_CT_2022 1 ST ANDREW’S SECONDARY SCHOOL Secondary 3 Biology (6093) Chapter 8: Transport in Humans Name: ____________________ ( ) Class: ______ Date: ______ Marks: ___/25 1 Determine if the following statements are true or false. If false, correct the statement to make it true. True/False a. All organisms have blood. b. Blood is necessary for transport of gases, nutrients and waste products into and out of the body of all organisms. c. Blood is made up of plasma, red blood cells, white blood cells and platelets. d. White blood cells have a longer lifespan than red blood cells because of the presence of nucleus. e. The red color observed in blood is derived from the red pigment hemoglobin in red blood cells. f. There are two types of platelets – lymphocytes and phagocytes. g. Blood functions solely as a transport mechanism for the body. h. Blood groups vary among individuals because of varying antigens on the surface of white blood cells. i. A person with blood group O can only accept blood from another person with blood group O. j. Blood clotting is possible with the presence of activated thrombin and fibrinogen in blood. _________ [10]

6093 Biology Closed-book assessment SASS_CT_2022 2 2 (adapted from 2013 P2A Q1) Fig. 2.1 shows a vertical section of the human heart. Fig. 2.1 (a) (i) Name the parts labelled P and Q. P __________________________________________________ Q ________________________________________________ [2] (ii) Use a label line and the letter X to label the aorta on Fig. 1.1. [1]

6093 Biology Closed-book assessment SASS_CT_2022 3 (b) Describe how blood from the lungs is forced through the heart into the aorta. _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ ___________________________________________________________ [4] (c) Fig. 1.2 shows the changes in pressure in the left side of the heart during the cardiac cycle. Fig. 1.2 (i) Using the information in Fig. 1.2, state how long ventricular systole lasts. ______________ [1] (ii) State the number of the line which represents the pressure in the following parts of the left side of the heart. Left atrium: Line ____ Left ventricle: Line ____ Aorta: Line ____ [3]

6093 Biology Closed-book assessment SASS_CT_2022 4 (iii) Describe, in detail, the events happening in the heart at 0.4 seconds. ______________________________________