Respiration Question

8/8/2019 Respiration Question

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CHAPTER 7 : RESPIRATION

1. TYPES OF CELL RESPIRATION

Complete the concept map below by naming the 2 types of cell respiration and writingwriting their equations.

2. Compare and contrast aerobic and anaerobic respiration.

a. Similarities : 1.2.3.

b. Differences :

Aerobic respiration Anaerobic respiration1. Presence of

Oxygen

2. Amounts ofEnergy released

3. Products

CELL RESPIRATION

1.

a. Equation :

2.

In Human Muscle In plants

b.Equation : c.Equation :

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4. Write word equation that summaries aerobic respiration, anaerobic respiration in yeastcells and human skeletal muscle cell. (give the number of ATP produced)

(a) i. Aerobic respiration in yeast cells.

_________________________________________________________________

ii. Anaerobic respiration in yeast cells.

_________________________________________________________________

iii. Anaerobic respiration in human skeletal muscle cells.

_______________________________________________________________

(b) Under what conditions can plant root cells and mammalian skeletal muscle cellsundergo anaerobic respiration?

i. Plant root cells

_________________________________________________________________

__________________________________________________________________

ii. Mamalian skeletal muscle cells

__________________________________________________________________

__________________________________________________________________

iii. How is an oxygen debt repaid?__________________________________________________________________

___________________________________________________________________

_____________________________________________________________________

____________________________________________________________________

(c) Explain the possible effects of a decrease in temperature on anaerobic respiration inyeast cells.

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

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5. RESPIRATORY STRUCTURES IN HUMAN AND OTHER ORGANISMS

The table below shows a brief comparison between the respiratory system of a man

and that of other organisms. Complete the table.

Organism RespiratoryStructure

RespiratorySurface

Characteristics of adaptation ofrespiratorysurfaces for gaseous exchange

Protozoa * large surface area because of its _______size

* plasma membrane is ________ and_______ to increase the rate of diffusion ofgas

Fish *large surface area because of numerous____________ and ___________ on gills

for faster diffusion of gases.* Gill filaments have ________ and__________membranes to increase rateof diffusion of gases.

* A network of blood capillaries in the gillfilaments to _________ rate of diffusion ofgases

Insect * many fine ____________ to increasesurface area for diffusion.

* A layer of _______ on the walls of thetracheoles

Amphibians * ___________ surface area* _________ and ________ respiratory

surfaces* A network of ___________________

Human * large surface area because of numerous ___________ in ________.

* The alveolus epithelium is _________ and_________.

* A network of ________________ at alveolito increase rate of diffusion .

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6. Figure 3 shows a respiratory structure of a grasshopper.

(a) Name the parts labeled P, Q, R, S in the Figure 3.

(b) R is a system of tubes available throughout the whole body of an insect.

i. What is the function of R?

_____________________________________________________________

ii. What is one distinct characteristic on the wall of R?

______________________________________________________________

iii. What is the purpose of this distinct characteristic in (b) ii?

_______________________________________________________________

_______________________________________________________________

(c) S represents a series of finer tubes that branches out from the ends of R.

i. State two differences in the wall structure between S and R.

_______________________________________________________________

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_______________________________________________________________

________________________________________________________

ii. How is oxygen delivered to the body cells?

_______________________________________________________________

_______________________________________________________________

________________________________________________________________

(d) Explain how larger insects like the grasshopper are able to ventilate their trachealsystem.

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

7. Draw and label the cross section of a gill of a fish.

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8. EXCHANGE OF GASES AT TNE ALVEOLUS

a. Name gas (i) P (ii) Qb. Name the type of air (i) X (ii) Yc.. Fill in the blanks

XY

_______ partial pressure of oxygen

_______ partial pressure of carbondioxide

________ partial pressure of oxygen

________ partial pressure of carbondioxide

P

Q

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9. Figure 4 shows the transportation of respiratory gases from the alveoli in the lungs to

the body cells and back to the lungs.

(a) State three features of the alveoli in order to function efficiently as a

respiratory surface.

1._____________________________________________________________________

2.______________________________________________________________________

3.______________________________________________________________________

(b) State the relationship between

i. the levels of partial pressure of carbon dioxide at P and Q,

__________________________________________________________________

__________________________________________________________________

ii. the levels of partial pressure of oxygen at P and Q.

____________________________________________________________________

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c) In what forms are oxygen and carbon dioxide transported in the blood?

i. Oxygen

__________________________________________________________________

ii. Carbon dioxide

__________________________________________________________________

__________________________________________________________________

iii. Suggest how deficiency in dietary iron would affect the transportation of

oxygen in the human body?

_________________________________________________________________

_________________________________________________________________

_________________________________________________________________

(d) What would happen if a person accidentally inhales excessive amount of carbon

monoxide into his lungs?

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

10. EXCHANGE OF CARBON DIOXIDE IN GREEN LEAVES UNDER DIFFERENTLIGHT INTENSITIES.

Fill in the blanks.

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In the dark, only the process of _____________ occurs.

_______________________ is released to the atmosphere

In dim light that is _________ light intensity, both processes of _____________

and ______________ occur. The amount of carbon dioxide released during

_____________ is the _______ as the amount of carbon dioxide used up during

_____________ . This is because the rate of respiration is ________ to the rate

of _________________ .

In bright light that is _________ light intensity, the absorption of carbon dioxide

is _______ than the release of carbon dioxide. This is because rate of

photosynthesis is ____________ than the rate of respiration. Hence more carbon

dioxide is needed.

..

11. Figure 3 shows the rate of carbon dioxide exchange of a green plant at various lightintensities.

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(a) Name the metabolic process(es) carried out by the green plant at points P, Q and R.

P__________________________________________________________________

Q__________________________________________________________________

R__________________________________________________________________

(b) (i) Which is the compensation point?

____________________________________________________________________

(ii) At what light intensity is the compensation point?

____________________________________________________________________

(c) Explain the physiological changes in the green plant between points P and Q.

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

(d) Comment on the compensation point of

i. shade-tolerant plants and

ii.shade-intolerant plants

i.______________________________________________________________

ii._______________________________________________________________

(e) At which parts of the day is a green plant at its compensation point?

_________________________________________________________________

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Paper 3 Exercise

QUESTION 1

1. An experiment was carried out to investigate the effect of cigarette smoke on lungs.

The following steps were carried out.

Step 1 : The initial temperature in the U-tube before and after the experiment

was recorded.

Step 2 : The cigarette was lighted until the butt

Step 3 : The filter pump was ran to suck up the cigarette smoke into the U-tube

Step 4: The experiment was repeated with 3 cigarette butt.

Step5: The colour of moist cotton was observed as well as bicarbonate indicator

Diagram below shows the apparatus set up used in this experiment.

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a)

Record the final temperature in the boxes provided in Table 1.

b) (i) State two different observations made from Table 1.

1

2

(ii) State the inference which corresponds to the observation in (b)(i).

1 : .

..

2 : .

.

No of Ci arette

Temperature

1 butt

3 butts

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Complete Table 2 based on the experiment that was carried out.

Variables Particulars to be implemented

Manipulated variable

.

.

How to alter the manipulated variable

..

..

.

Responding variable

.

.

How to determine the responding variable

..

..

..

Controlled variable

.

.

How to maintain the controlled variable

..

..

1(d) State the hypothesis for this experiment.

..

..

.

QUESTION 2

2.

Yeast is used to make bread. To produce a spongy and

soft bread, the dough can not be directly put into a hot

oven after is kneaded. The dough will not rise because

the yeast is killed by the high temperature.

Temperature is one of the abiotic components that affect the activity of

microorganisms like yeast.

Plan a laboratory experiment to investigate the effect of temperature on the activity of

microorganism.

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The planning of your experiment must include the following aspects :

Problem statement

Objective of study

Hypothesis Variables

List of materials and apparatus

Technique used

Experimental procedure or method

Presentation of data

Conclusion

Scoring Criteria:

Able to state 7-9 planning investigation of experiment following:Problem statement (PS) ideaAim of investigation / Objective (Ob) Relation between C1 andC2

Statement of hypothesis (HP) ideaStates variables (Vb)List of materials and apparatus (AP)Technique (Tq) Correctly and accurately (Bonus 1) = 1 mark SampleAnswer: Example

Catch , mark, release, catch again technique

** Reject :Capture - recapture

Procedure / Method of investigation (PD) must have at least onecriteria either C1 @ C2 @ C3 @ C4 @ C5

Data presentation // presentation of result (DP) Have table with titleand unit

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Respiration Question