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%
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