Biology Fsc Part 1 Chapter 13 Online Test With Answers

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Biology Fsc Part 1 Chapter 13 Online Test

Sr. # Questions Answers Choice
1 Walls of the chest cavity are composed of Ribs Intercostal muscle Ribs and intercostal muscle Ribs, intercostal muscle and diaphragm
2 The heart of the fist is single circuit and the blood flows in Two direction One direction One and two direction Reverse direction
3 The main tracheal trunk in cockroach communicates with exterior by 100 pairs 10 pairs 8 pairs 4 pairs
4 In the peroxisomes the glycolate is converted into Serine Ethanolamine Glycine CO<sub>2</sub>
5 Xylem and phloem are not involved In transport of minerals In transport of liquids In transport of gases In transport of water
6 Water is dense than air 800 times 1800 times 8000 times 80,000 times
7 How much air can lungs when they are fully inflated 5 liters 4 liters 3.5 liters 4.5 liters
8 Blood contains ______ oxygen per 100 ml of blood when haemoglobin is 98% saturated 19.6 ml 18.6 ml 16.6 ml 17.6 ml
9 Respiratory pigment present in muscles is called ______ Myoglobin Globin Haemoglobin Haemocyanin
10 The respiratory system is most efficient in ______ Man Bird Fish Snake
11 Air spaces between mesophyll cells of a leaf comprise ______ of the total volume 20% 30% 40% 50%
12 Myoglobin occurs in Red blood cells White blood cells Plasma Muscle fibres
13 The volume of air taken inside the lungs and expelled during exercise is about 2.5 liters 3.5 liters 4.5 liters 1.5 liters
14 How much air lungs can hold when they are futy inflated. 5 liters 4.5 liters 4 liters 3.5 liters
15 How many molecule of oxygen can bind with a molecule of myoglobin. 4 3 1 2
16 Respiratory pigment present in muscle is called. Hemoglobin Globulin Myoglobin Hemocyanin
17 Asthma is associated with severe paroxysm of difficult. Sleeping Walking spoking Breathing
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