6B - The Respiratory System Knowledge Test

Candidate Name:
1) Why do cells require energy?


2) How do cells obtain energy?


3) Where in a cell does most respiration happen in a cell?


4) What is respiration in terms of particles?


5) In terms of energy, what type of reaction is respiration?


6) What do cells need for respiration?


7) What is the most common type of respiration in plants and animals?


8) What is the word equation for aerobic respiration?


9) Why do cells switch the type of respiration they are doing?


10) What is the word equation for anaerobic respiration?


11) Why do most plants and animals do aerobic respiration, rather than anaerobic?


12) What effect does Lactic acid have?


13) How do we get rid of Lactic acid?


14) Describe what particles do in a fluid.


15) What is diffusion?


16) What is concentration?


17) How do the random movement of particles result in the movement from a higher concentration to a lower concentration?


18) Under what conditions does diffusion happen faster?


19) Why does glucose diffuse into muscle cells from the blood?


20) Why does oxygen diffuse into muscle cells from the blood?


21) Why does carbon dioxide diffuse out of muscle cells into the blood?


22) Why does water diffuse out of muscle cells into the blood?


23) How can diffusion occur in and out of cells.


24) What does partially-permeable mean?


25) Why is the cell membrane referred to as partially-permeable?


26) What are the main parts of the human circulatory?


27) Which direction do the arteries move the blood?


28) Which direction do the veins move the blood?


29) What blood vessel helps carry out exchange between the blood and cells?


30) What is the part of the blood made of mainly water and dissolved chemicals called?


31) What gases are dissolved in the plasma?


32) What part of the blood carries most of the oxygen?


33) What gas diffuses from the lungs into the blood?


34) What gas diffuses out of the blood into the lungs?


35) which organ does glucose enter the blood from?


36) Which organ removes excess water from the blood?


37) What organ is responsible for gas exchange in humans?


38) How does the air enter the lungs?


39) What does the wind pipe split into when it reaches the lungs?


40) What are the smaller tubes the bronchi split off into called?


41) What are the structures at the ends of bronchioles called?


42) What are the lungs adapted to do for gas exchange?


43) What adaptation does the alveoli give to help gas exchange?


44) How does a large surface area help gas exchange?


45) What surrounds the alveoli?


46) Why does a good blood supply improve the rate of gas exchange?


47) How thick are the alveoli?


48) Why does the thin alveoli wall help gas exchange?


49) What part of the human body is the thorax?


50) What is the function of the ribs?


51) What parts of the body are needed to ventilate the lungs in breathing?


52) What happens to increase the volume of the lungs?


53) How does the increase in lung volume cause breathing in?


54) What happens to decrease the volume of the lungs?


55) How does the decrease in lung volume cause breathing out?


56) How does air pressure make air particles move?


57) How could you measure lung volume?


58) What change to the amount of different gases needed and expelled when exercising?


59) What changes with the heart when oxygen is needed more quickly?


60) What changes with the breathing when oxygen is needed more quickly?


61) What does asthma do to the breathing tubes?


62) How does asthma affect breathing?


63) Name the three main chemicals in tobacco smoke that can reduce the oxygen pumped around the body?


64) What does tar do to the lungs?


65) How does tar affect how well the body can get oxygen?


66) How is the reactivity of carbon monoxide compared to oxygen?


67) How does carbon monoxide affect how well the body can get oxygen?


68) How does nicotine affect how well the body can get oxygen?


69) How do the Big Ideas link to this topic?

a) Forces:





b) Particles:





c) Energy:





d) Cells: