Biol Photosynthesis and Respiration Answer Key

University:
Williams College
Course:
BIOL 101 | The Cell
Academic year:

2022
Views:

128

Pages:

6
Author:

ojeveteranosvimv

2. Refer to Model 1. In what cell organelle does cellular respiration occur? f/l/11.fo�Mdr,(A._ b. What are two reactants needed for cellular respiration? c 0:J c. What at�p�o::cr�of cd:ar ,:::n? A-rP -1-- !-Ha-0 3 What four substances are recycled during photosynthesis and respiration? . CO;:i f- 1-f J-e; -I- 5./u_wSt f- a;J- What is the one component in photosynthesis that is not recycled and must be constantly ·available? '5Ul1 (; jh__f- 5. Are chloroplasts fS? und in most plant cells? Explain. ; /'I /eo-- 11-e s vJ A, � "'- c;..re._ J/i10Sf expos-eJ -/-o �rl /; J �-t� 6. Are mitochondria found in most plant cells? Explain. yes, pbr1-f5 also �� - b,ec-.k dov->J"\ sJCLtr- 1��-411 L> , -fvuv1 d . -1---£.e,�- own -fbod . Are chloroplasts found in animal cells? Explain. ;Ud . Oen ; «� ( UL /{S e&--Yfll; I- Are mifochondria found in animal cells? Explain. Ye 7 /-HJ Co� 5 VI,/'}-( I/ :Y fa .ATP rN., -/-0 loo I� 9. Write a grammatically correct sentence that compares the reactants and products of photosynthe sis with the reactants and products of respiration. Be ready to shar� your sentence with the class. ph -1-o s ,y1- -1:- l-.. -s I s 1 u.11 res f; f'v- -h' on 'j c Ie A 1..,,-0 '> ( CO} ) tJ d � If� 0 be t--,.,J&n e7P""-f CJ Js Vt:)v/j °i O dt>tA./f/\ � I (t)( I 115 I /1 -rk y , fC<-J,"-d!� be,-,, .J � cow 5 toOd rel) ¼ ,; /0 ,.,.J , ./-v Q/1 UV/ J 12· Exp �ai n how the e nergy used by an athlete during a football game comes from the energy of sun 1 1g ht. /�of b�.. tt J,ooJ t>t/ uJrt5� pl� ��sej ;-W e_e;_f ?l�> e�j· J, t/Jr 11.1 •. Model 2 - The Carbon Cycle Auto and factory em1ss10ns r"/'i.'�-..., Decay (by decomposing fungi, bacteria, and worms) l Carbon Stores (coal, oil, natural gas) 13. In the Model 2 diagram, place a green star by each process (A, B, C, or D) that represents photo synthesis, and a red star by each process (A, B, C, or D) that represents cellular respiration. (§) , co') +- "'� 1 . Write and label equations for cellular respiration and photosynthesis below. Circle the carbon dioxide in each. If you need help, see Model 1. 1 o -f t> . __:;:p � , . utt /kspi , ro.-�(()(/1 : p i,yJ--/-oS 'Y' � s; 5 : J 1• l,{_ Lt>. Se + G;\ }- 7 If;;(,; �rP t? J -#7 5 II' 0/r f v O ). 15. When matter from pWanimals decay (rot), microorganisms responsible for the decompo sition process respire. Knowing chis information, do you need to add any red stars to Model 2? Explain and add the stars if needed. /{ 5£---0 IA ( '7 p. c.,kf 1t>.. d � resplfe J e ,,) p I o-¥1.-l-s C� <; {-o.r ?LS J. e-r1' /Yi:< f '> 7) /GU }J-e J dee°] 16. List any chemical processes other than photosymhesis and respiration chat are taking place in Model 2. 17. Are any of your answers from Question 16 due to human activity? Explain. o..ud-o i .( P-(___1--o') /!rorl" �uffl� s - e_ri,...._ I,$ ) i O /1 5 18. Ignoring the human act�ons of auto and factory emissions, what generalization can you make . about the balance of carbon dioxide in Model 2 over a long period of time? �� .f-CM � p(O--Yt:f--s 1-�� '/l Co :J h j ()-{ co ;) , 'f 1-o /tf:>'j /IL U-e s i' s 1 {3. r1 >r�, Is· re f-ec:.:. 5 e o? hJ o! 5 1 r Cc+, ori �/U�5 ( j 19. How would the burning of fossil fuels upset the balance of the carbon dioxide cycle? {_p tM- h {A s 1--ron �o U-e o. J cl s CJ,,.,lr 2 . Deforestation is another example of human activities that affects the carbon dioxide cycle. Explain how the cutting down and burning of trees would affect this cycle. r;e �er- licss +-ree s �':J. Extension Questions 21. Ethanol is one example of alternative fuels for powering our cars and rrucks. Ethanol can be produced in different ways, but most often by microorganisms acting on plant materials such as corn. Advocates argue that burning ethanol would not alter the net emission of CO 2 even though when ethanol is involved in combustion it produces CO 2. What are the pros and cons of producing and burning ethanol? G 1 tJ . J �/ N> vJ I /1 /' I>r/! vovf j (_A/ f rou s 5---- l,J 0_ '-J d 0-e V'\ J ro. d , -H o.n "") ca= I VJ:J . 6t p.(!_l-ro/cu.lY\. 5owt'ces .do f1of COJ d l,A/'1 /l -1--0-l.e l /\ 0/1 1--¼ prod-LA c. f-, 'u.n_ p ,oce_ 5 s IN b Uffll' /l) r.e le u '> f. -1-J.e J J 22. Electricity consumption is a huge producer of atmospheric carbon dioxide because much of the USA's electricity is produced in coal burning power plants. What are three other ways that elec tricity can be produced that would NOT increase atmospheric carbon dioxide? W'hich of these does your group think holds the most promise for the future? f O r.,J e r ! <;ol o-r fYl Iif--v.fe id ro e le c,.fI/ 1 c

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