The Biochemistry Questions Site

A free Biochemistry Question Bank for premed, medical students and FMG

Biochemical Puzzles

Find seven hydrosoluble vitamins

 

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

 

Carbohydrate Crossword

 

(Tip: save the crossword as a picture and print it. Then use a pencil to solve it) 

 

                

Across

 3. Minor disaccharide that can be obtained from starch hydrolysis

 5. The main kind of carbohydrate in foods. Also the way in which glucose is stored in plants.

7. The way in which glucose is stored in animals

12. The ketotriose

14. A ketohexose

15. Milk sugar

16. Pentose forming DNA

17. A polyalcohol related to the formation of cataracts in diabetic patients

18. An amino sugar

19. A tetrose

20. A polyalcohol related to the formation of cataracts in patients with galactosemia

21. C-2 epimer of glucose  

Down  

1. The lineal molecule found in starch granules

2. A heteropolysaccharide with anticoagulant effects.

4. A heptose

5. Table sugar

6. An aldohexose found in lactose

8. “Blood sugar”

9. An aldotriose

10. The branched molecule forming starch granules

11. Pentose forming RNA

13. Polysaccharide with a structural rol in plants

21. Main disaccharide obtained from starch hydrolysis

 

Organize the tiles!

When you organize these tiles, you will find a phrase describing a feature of biological catalysts, that in fact is common to all catalysts:

 

 

Solve this amino acid crossword:

 

                  1                 2
  3                                  
                      4              
          5       6                  
                                     
7                     8   9          
                                     
  10                                  
                                     
11                                    
                12                    
                                     

 

ACROSS1. amino acid positively charged at      physiological pH
3. acidic amino acid
6. amino acid that can form disulfide bridges
7. aromatic amino acid
8. basic amino acid
10. polymer of amino acids
11. branched chain amino acid
12. amino acid with OH group in the lateral chain
DOWN1. apolar amino acid
2. polar, non charged, amino acid
4. negatively charged amino acid at physiological pH
5. imino acid
9. the smallest amino acid

 

Find the names of ten carbohydrates:

 

C C E M R S E O B O C E A O R G E S O T C A L T
L E R A E T U C C E S F R F S Y O E A Y L U O L
B B S L L F E C S Y B T O R G U L O R S C G O U
Y D S T E R S S R E D Y H E D L A R E C Y L G L
S O E O C S O S E O C A A Y L U R L G T E Y Y L
C C R S T R T T D E S E I O E U T L E R N O E Y
T R D E I D C R G O U E E L G T Y Y G Y C T C O
G U T R H G U R L D O S G R O C T G R E U L O R
S E R Y T H R O S E E S G A O C D A Y E R T R S
S R T E H E F E S E R O E G E R S T O S B G C Y
E G O O G G L S C C Y O E G H C L S E Y T G T O
E D C H D E O O L U U N L T R E E S O C U L G Y
C E O T A C E B B Y M Y G S C G T G L T O L C S
U U G O O A H I L E U E T O T N Y R N C O L S E
E O C T G E O R D L C A L I G A L A C T O S E G
E O T O L E T A S O C O O R A E T U G S A G E E

 

Find the metabolites of the Krebs Cycle: 

 

C A K Y R A I S O T I A L E C U T A R A A C U
M A C E T Y L C O A R A T R O T U O O E C E C
O T T A R E I E E E E T A N I C C U S C E E E
A C C U Y I K O F A Y A S E O M A K T T E T L
L L A A E T A L A M K R S A I O C T A A A A U
F U M A R A T E C F C X E T C K C T O C T R T
K A A T A E E I U N E A L L R T E M I I E T E
O E I C U S T A C E T O Y S L C E T C O A I O
O S Y C X R R C A E U N T A A I T L I A I C C
N I E F A F C A A T I O T L T U L C T C L O E
U X T T E S F M I C A G A L E E A U E E R S T
A A E I F E L U C S A X A E A E E U T Y F I O
A E A T T C K U K A O R Y C A M R A N T C C E
R U U F M C S T T C T T E C E S A T L C R U Y
A L F A K E T O G L U T A R A T E R A R U C L
A C A U C A A F E O E A T O A C S I T C T I L

 

                                                                   SOLUTIONS

      

  SOLUTION TO CARBOHYDRATE PUZZLE

 

GLUCOSE GLYCOGEN MALTOSE RIBOSE
FRUCTOSE ERYTHROSE SUCROSE GLYCERALDEHYDE
GALACTOSE LACTOSE
      M   S                     E S O T C A L  
      A     U                                  
      L     E C                                
      T     S   R E D Y H E D L A R E C Y L G  
      O     O     O                 G          
      S     T       S             L            
      E     C         E         Y              
            U                 C                
  E R Y T H R O S E         O                  
            F E           G                    
              S         E                      
              O       N         E S O C U L G  
              B                                
              I                                
              R             G A L A C T O S E  
                                               

SOLUTION TO KREBS CYCLE METABOLITES PUZZLE:

 

SUCCINYLCOA SUCCINATE ALFAKETOGLUTARATE MALATE
CITRATE FUMARATE ISOCITRATE OXALACETATE
ACETYLCOA
                                             
  A C E T Y L C O A                          
                    E T A N I C C U S   E E  
                                A     T   T  
        E T A L A M           O     A     A  
F U M A R A T E C           C     T       R  
              I           L     E         T  
            T           Y     C           I  
          R           N     A             C  
        A           I     L               O  
      T           C     A                 S  
    E           C     X                   I  
              U     O                        
            S                                
A L F A K E T O G L U T A R A T E            
                                             

 

 Solution to the Tiles problem about biological catalysts

 

Organizing Tiles:   Q: When you organize these tiles, you will find a phrase describing a feature   of biological catalysts, that in fact is common to all catalysts  

Solution:   ENZ/YME/S  D/O   N/OT  /CHA/NGE/   TH/E  E/QUI/LIB/RIU/M  O/F  T/HE  / REA/CTI/  ONS  
 

Solution to:Find seven vitamins
 
BIOTIN
COBALAMIN
FOLATO
NIACIN
PYRIDOXINE
RIBOFLAVIN
THIAMINE

 

Solution

 

N + + + + F + + + + B + + E +
+ I + + O + + + + + I + + N +
+ + V L + + + + + + O + + I +
+ + A A + + + + + + T + + X +
+ T + + L + + + + + I + + O +
O + + + + F + + N + N + + D +
N + + + + + O I + + + + + I +
+ I + + + + M B + + + + + R +
+ + A + + A + + I + + + + Y +
+ + + C L + + + + R + + + P +
+ + + A I T H I A M I N E + +
+ + B + + N + + + + + + + + +
+ O + + + + + + + + + + + + +
C + + + + + + + + + + + + + +
+ + + + + + + + + + + + + + +
 
(Over,Down,Direction)
BIOTIN(11,1,S)
COBALAMIN(1,14,NE)
FOLATO(6,1,SW)
NIACIN(1,7,SE)
PYRIDOXINE(14,10,N)
RIBOFLAVIN(10,10,NW)
THIAMINE(6,11,E)

 

6 Responses to “Biochemical Puzzles”

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  4. [...] Tags: biochemistry, crossword, puzzle trackback Just a short post about a blog where you can find biochemical puzzles and quizzes. Let’s start with an amino acid [...]

  5. SURAPANENI KRISHNA MOHAN said

    The puzzles and crosswords given here were very nice and If possible kindly send me more puzzles & crosswords.

    Thanking You Sir.

    With Reagrds,

    SURAPANENI KRISHNA MOHAN

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