Exa 2

THE JOURNEY OF THE BLOOD The heart is a strong muscle that works like a pump. It sends blood to every part of the body. The blood travels through tubes called blood vessels. There are two main types of blood vessels: arteries and veins. Arteries carry blood away from the heart. This blood is full of oxygen and nutrients. Veins carry blood back to the heart. This blood has less oxygen because the body already used it. The heart has four chambers: two atria and two ventricles. The right side of the heart sends the blood to the lungs to get oxygen. The left side of the heart sends the oxygen-rich blood to the rest of the body. This constant movement keeps our body working properly. 1. ACCORDING TO THE TEXT, WHAT IS THE MAIN DIFFERENCE BETWEEN ARTERIES AND VEINS?. A. Arteries carry dirty blood, and veins carry clean blood. B. Arteries carry blood to the heart, and veins take it away. C. Arteries carry oxygen-rich blood from the heart, and veins carry blood back with less oxygen. D. Arteries and veins carry blood with the same amount of oxygen.

THE JOURNEY OF THE BLOOD The heart is a strong muscle that works like a pump. It sends blood to every part of the body. The blood travels through tubes called blood vessels. There are two main types of blood vessels: arteries and veins. Arteries carry blood away from the heart. This blood is full of oxygen and nutrients. Veins carry blood back to the heart. This blood has less oxygen because the body already used it. The heart has four chambers: two atria and two ventricles. The right side of the heart sends the blood to the lungs to get oxygen. The left side of the heart sends the oxygen-rich blood to the rest of the body. This constant movement keeps our body working properly. 2. WHAT IS THE JOB OF THE VENTRICLES IN THE HEART?. A. To pump blood out of the heart to the body or the lungs. B. To receive blood from the lungs and body. C. To stop the blood from leaving the heart. D. To clean the blood and add oxygen to it.

3. WHICH OPTION SHOWS THE CORRECT ORDER OF THE BONES FROM HEAD TO FEET?. A. Skull – Clavicle – Radius and Ulna – Humerus – Pelvis – Femur – Tibia and Fibula. B. Skull – Humerus – Clavicle – Radius and Ulna – Pelvis – Femur – Tibia and Fibula. C. Skull – Clavicle – Humerus – Pelvis – Radius and Ulna – Femur – Tibia and Fibula. D. Skull – Clavicle – Humerus – Radius and Ulna – Pelvis – Femur – Tibia and Fibula.

4. WHICH BONE HELPS YOU STAND AND SUPPORT THE WEIGHT OF YOUR WHOLE BODY?. A. Femur. B. Skull. C. Clavicle. D. Radius and Ulna.

READ THE INFORMATION, LOOK AT THE DIGESTIVE SYSTEM DIAGRAM AND ANSWER THE QUESTIONS 5 AND 6 The digestive system helps us use food. We eat food with our mouth and chew it. The food goes down the esophagus to the stomach. In the stomach, the food is mixed. Then it goes to the small intestine. Here the body takes the good things from food. Next, it goes to the large intestine. Water is taken here. Finally, the waste goes out through the rectum and anus. 5. WHICH ORGAN IS RESPONSIBLE FOR ABSORBING MOST OF THE NUTRIENTS FROM FOOD?. A. Stomach. B. Small intestine. C. Large intestine. D. Liver.

READ THE INFORMATION, LOOK AT THE DIGESTIVE SYSTEM DIAGRAM AND ANSWER THE QUESTIONS 5 AND 6 The digestive system helps us use food. We eat food with our mouth and chew it. The food goes down the esophagus to the stomach. In the stomach, the food is mixed. Then it goes to the small intestine. Here the body takes the good things from food. Next, it goes to the large intestine. Water is taken here. Finally, the waste goes out through the rectum and anus. 6. FOOD IS MIXED WITH ACIDS AND BROKEN DOWN INTO SMALLER PIECES IN THIS ORGAN. WHICH ORGAN IS IT?. A. Stomach. B. Mouth. C. Rectum. D. Esophagus.

READ THE FOUR SENTENCES ABOUT THE RESPIRATORY AND NERVOUS SYSTEMS AND ANSWER THE QUESTIONS 7 AND 8 I. The lungs take oxygen from the air we breathe. II. The brain sends electric messages to control body movements. III. The stomach is the main organ of the respiratory system. IV. Nerves connect the brain and the spinal cord to the body. 7. WHICH OPTION SHOWS THE CORRECT SENTENCES?. A. Only I and II are correct. B. Only I, II and IV are correct. C. Only III and IV are correct. D. All are correct.

READ THE FOUR SENTENCES ABOUT THE RESPIRATORY AND NERVOUS SYSTEMS AND ANSWER THE QUESTIONS 7 AND 8 I. The lungs take oxygen from the air we breathe. II. The brain sends electric messages to control body movements. III. The stomach is the main organ of the respiratory system. IV. Nerves connect the brain and the spinal cord to the body. 8. WHICH SENTENCE IS FALSE AND WHY?. A. I – It is false because the lungs do not take oxygen from the air. B. II – It is false because the brain does not send electric messages to the body. C. IV – It is false because nerves do not connect the brain and the spinal cord. D. III – It is false because the stomach belongs to the digestive system, not the respiratory system.

The chart shows the maximum activity of three different enzymes (a, b, c) in the digestive system in different levels of acid environment. 9. WHAT ENZYME NEEDS THE MAXIMUM ACID ENVIRONMENT TO HAVE ACTIVITY?. A. Enzyme B. B. Enzyme C. C. Enzyme A. D. The three enzymes at a time.

The chart shows the maximum activity of three different enzymes (a, b, c) in the digestive system in different levels of acid environment. 10. SALIVA PRODUCES AN ENZYME THAT NEEDS AN ACID ENVIRONMENT BETWEEN 5 AND 8 TO WORK. WHICH LINE REPRESENTS THE ENZYME PRODUCED BY THE SALIVA?. A. Enzyme A. B. Enzyme B. C. Enzyme C. D. None of the enzymes represent the description.