Name : _____________________________ Chapter 7 Respiration _______________________________________________________ ___________________________________CHAPTER 7 : RESPIRATION WORKSHEET 7.1 The Res piratory S tructures and Bre athing Mech anisms in Humans and Animals 1. Label the figure bel ow a. Gaseous exch ange occurs ov er t he whole plasma me mbrane o f an Amoeba sp the pathway of _________ diffusion the pathway of __________________ being eliminated i. The resp irator y su rfac e for Amoeba sp. is the entire ___membrane. ii. It has a ____ _ surfac e area p er unit vo lume o f the body , there fore _________ ___ alone is su fficient to transport g ases into and ou t of the body b. The tra che al sy ste m of a n ins ect i. The respirat or y system of insect s is known as the __ syst em, which is composed of air tubes called ________________. ii. Air enter s the trachea e throug h _____ ___ whi ch have ____ _. iii . The trach ea is reinfo rced wit h rings of ______ ___ __ to preven t it from _________ __________ __. iv. The trach ea branc hes into ____ _ which prov ide a large surfa ce area for the ________ of gases. _________________________________________________________________________________________ WAJA BIOLOGY 2009 JPN PERAKScore __ /__7.1/1 [ 7 marks ] [ 12 marks ] P: Q:
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WORKSHEET 7.1 the Respiratory Structures and Breathing Mechanisms in Humans and Animals
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7/14/2019 WORKSHEET 7.1 the Respiratory Structures and Breathing Mechanisms in Humans and Animals
a. Gaseous exchange occurs over the whole plasma membrane of an Amoeba sp
the pathway of oxygen diffusion
the pathway of carbon dioxide being eliminated
i. The respiratory surface for Amoeba sp. is the entire plasma membrane.ii. It has a large surface area per unit volume of the body, therefore diffusion alone
is sufficient to transport gases into and out of the body
b. The tracheal system of an insect
i. The respiratory system of insects is known as the tracheal system, which iscomposed of air tubes called tracheae.
ii. Air enters the tracheae through spiracles which have valves.iii. The trachea is reinforced with rings of chitin to prevent it from collapsing.iv. The tracheae branches into tracheoles which provide a large surface area for
the diffusion of gases.
c. The respiratory structure of a frog
_________________________________________________________________________________________WAJA BIOLOGY 2009JPN PERAK
P: cytoplasm
Q: nucleus
7.1/4
spiracle
cell
trachea
tracheole
7/14/2019 WORKSHEET 7.1 the Respiratory Structures and Breathing Mechanisms in Humans and Animals