life processes.

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O G I V N H W H M B P A S M N J O U V U O
E U B I T O G E T E N E R G Y V W E T L C
E T T R L A B O M T P X T D N A B K D O S
X E V Y B R B Y G F Y C Y C U C A J H K K
J L L V V E U O S H N T U S Q I D L U A C
F A P U L E Y T B A U M K E T C N B J W K
B L U N G S K I D N E Y S S K I N N D Y X
C M L F H T M W G D P C A Y U Q M S S X V
K A Y V I F C T H E A C T I V E S I T E F
B I O L O G I C A L C A T A L Y S T S D A
P S O O D Y I T B T D O V A P P A L L H F
S W E F I E I M M O X Y G E N D E B T R Y
O J F A T Y N D R T S Q O E J T T H E W F
V V N H C M W U F G D M G C F R C T E P G
X W R A H I D W V X I K W B B L S F E I L
F D Q Y F T G N D T I H E S Q N G E V E B
U N T I S J O I F G Q W O S Q K X R K I P
E P A S U B S T R A T E L W H P U B Y F R
L D N F M C I H Q T U B S J T C V T W V Y
A L D Y P R A Y J K B M O E R T J J N J B
C Y V P I Y O F Y I T B G M P B G W Q O Q

Clues

  • what are enzymes? (10, 9)
  • what is the area that the substrate attaches to called? (3, 6, 4)
  • what is the molecule that an enzyme acts on called? (1, 9)
  • what is the volume of oxygen needed to completely oxidise the lactic acid that builds up in the body during anaerobic respiration is called? (6, 4)
  • which organs excrete? (5, 7, 4)
  • why do organisms respire? (2, 3, 6)

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