1. https://doodle.com/poll/rzh285ku3bpc7nac
PRESENTATIONS
13, 18, 20, 25, 27 March, 1 April
We must have at least one presentation on each of the days above. Please use the doodle link below and sign up.  If there are 2 or more persons in each group please list all names (one name per line with the initials of one group member beside all  group member’s names) and select a date on the doodle. Persons wishing to present alone are welcome to do so and do not need to place their initials after their name. Once selected, changes will be allowed only if there is a medical situation or a family emergency or sports team travel (written documentation must be provided). Polling must be completed by 15 February. Please complete the doodle poll below.

2. LAST TIME WE TALKED ABOUT DIETARY
LIPIDS IN SPORT
TODAY PROTEINS ARE INTRODUCED
FOLLOWED BY DIETARY PROTEINS IN
SPORTS ON 8 FEBRUARY

3. LECTURE 9
PROTEINS
4 FEBRUARY 2019

4. OUTLINE OF LECTURE 9 1) PROTEINS DEFINED 2) AMINO ACID STRUCTURE
3) AMINO ACIDS-AMINO DEFINITION
-ESSENTIAL OR NOT
-BUILDING BLOCKS
4) PROTEIN STRUCTURE
5) STRUCTURE DEFINES FUNCTION
6) IDATME
7) REBUILD INTO STRUCTURE AND HENCE FUNCTION WE USE
8) PROTEINS-ESSENTIAL OR NOT?- HEALTHY ROLES
9) PROTEINS IN FOOD
10) FAD DIETS
11) PROTEINS- DRIs

5. Proteins defined
CONTAIN CARBON, HYDROGEN AND OXYGEN JUST LIKE LIPIDS AND CARBOHYDRATES
BUT PROTEINS ALSO HAVE NITROGEN
SHAPE AND HENCE FUNCTION DEPENDS ON AMINO ACID SIDE CHAINS

8. Amino acids Non-essential Essential Conditionally essential
Amino acids
Amino definition
Non-essential
Essential
Conditionally essential
Building blocks

10. Loss of shape-loss of function
Protein structure
Variety
Shape-function
Loss of shape-loss of function
acid, biochemically (e.g. urea formation)
acid gives easier digestion

11. Protein structure
STRUCTURE DEFINES FUNCTION

12. -tube (eg orogastric)-whole proteins -intravenous-amino acids
 IDATME
Ingestion
-oral-whole proteins
-tube (eg orogastric)-whole proteins
-intravenous-amino acids

13. Stomach-acid and pepsin small intestine lumen-oligopeptides,tri- and
 IDATME
Digestion
Stomach-acid and pepsin
small intestine lumen-oligopeptides,tri- and
dipeptides, and amino acids formed
small intestine wall-tri- and dipeptides formed
into single amino acids
issues of dietary enzymes and pre-digested proteins

14.  IDATME
Digestion
file:///D:/Media/Animations/chapter6/0606.html

15. IDATME
Absorption
Carriers-facilitated

16. Blood-amino acids alone or as part of proteins
IDATME
Transport
Blood-amino acids alone
or as part of proteins

17. PROTEIN ANABOLISM
DNA TO PROTEIN
file:///D:/Media/Animations/chapter6/0607.html

18. Figure 6.7: Animated! Protein Synthesis.
Fig. 6-7, p. 188

19. Figure 6.7: Animated! Protein Synthesis.

20. REBUILD INTO STRUCTURE AND HENCE
FUNCTION
PRIMARY
SECONDARY
TERTIARY
QUATERNARY
GLOBULAR
FIBROUS

21. STRUCTURE IN THE BODY
PRIMARY
SECONDARY
TERTIARY
QUATERNARY
GLOBULAR
FIBROUS

24. PROTEIN CATABOLISM
-proteins catabolised to amino acids
-amino acids converted to other molecules – eg glucose, urea, creatinine

25. PROTEIN CATABOLISM

26. PROTEIN EXCRETION
Urine – urea and creatinine
Faeces- unabsorbed amino acids and proteins

27. PROTEINS ESSENTIAL OR NOT?
YES- FUNCTIONS

28. PROTEINS ESSENTIAL OR NOT?
YES- FUNCTIONS

29. PROTEIN FUNCTIONS
CHAPERONES

30. PROTEIN FUNCTIONS CONTINUED
ENZYMES
proteases
carbohydrases
lipases

31. PROTEIN FUNCTIONS CONTINUED
TRANSPORT PROTEINS
lipoproteins
hemoglobin
glucose transporters
amino acid transporters
sodium potassium transporter
file:///D:/Media/Animations/chapter6/0610.html

32. PROTEIN FUNCTIONS CONTINUED
NUTRIENT AND STORAGE PROTEINS
nutrient proteins
ovalbumin
casein
storage proteins
ferritin

33. PROTEIN FUNCTIONS CONTINUED
CONTRACTILE OR MOTILE PROTEINS
actin
myosin

34. PROTEIN FUNCTIONS CONTINUED
STRUCTURAL PROTEINS
collagen
elastin
keratin

35. PROTEIN FUNCTIONS CONTINUED
DEFENCE PROTEINS
antibodies
fibrinogen
thrombin

36. PROTEIN FUNCTIONS CONTINUED
REGULATORY PROTEINS
insulin
parathyroid hormone

37. PROTEIN FUNCTIONS
CONTINUED
RECEPTOR PROTEINS
insulin
LDL

38. PROTEIN FUNCTIONS CONTINUED
SIGNALLING PROTEINS
insulin sets off
signalling cascade for
glycogen synthesis

39. PROTEIN FUNCTIONS CONTINUED
ENERGY

40. PROTEIN FUNCTIONS CONTINUED
BIND, CATALYSE
AND BUILD

41. Proteins in foods
Complete-meats fish poultry
-eggs milk cheese
-SOYBEANS –
- QUINOA- BUT CAUTION
Incomplete-corn, peanuts, peas
-navybeans
-grains, nuts, sunflower
and sesame seeds

42. PROTEINS IN FOODS CONTINUED
Complementary proteins
-corn and beans
-rice and beans
-bread and peanut butter
-macaroni and cheese

43. Proteins in foods continued
BREADS, GRAINS, CEREALS
BREAD –2 SLICES -2 GRAMS PROTEIN
1 ROLL-2 GRAMS PROTEIN
RICE-1/2 CUP COOKED- 2 GRAMS PROTEIN

44. Proteins in foods continued FRUITS AND VEGETABLES
CANNED PEARS-1/2 CUP- 1 GRAM PROTEIN
1 APPLE- MEDIUM-400 MG PROTEIN
CARROT STICKS- 1 CARROT
-1 GRAM PROTEIN
ASPARAGUS – ½ CUP- 2.8 GRAMS PROTEIN
SOYBEANS-1/2 CUP COOKED-11 GRAMS
PROTEIN

45. Proteins in foods continued
MILK AND DAIRY PRODUCTS
FAT FREE MILK- ½ CUP
- 4 GRAMS PROTEIN
ICE CREAM-2/3 CUP-3 GRAMS PROTEIN
CHEESE-84 GRAMS- 24 GRAMS PROTEIN

46. Proteins in foods continued
MEATS, POULTRY, FISH AND NUTS
CHICKEN BREAST – 84 GRAMS- 26 GRAMS PROTEIN
      
ROAST PORK-84 GRAMS-22.5 GRAMS PROTEIN

47. PROTEINS IN FOODS CONTINUED
ROAST BEEF –84 GRAMS-22 GRAMS PROTEIN
FISH- 84 GRAMS GRAMS PROTEINS
NUTS –84 GRAMS-15 GRAMS MOST NUTS
CHESTNUTS ARE 1.8 GRAMS
PROTEIN

48. FADS IN PROTEIN DIETS
DR. ATKINS DIET
the same high protein, high fat,
high cholesterol diet reincarnate

49. ATKINS DIET CONTINUED
In the '60's it was the Atkins diet,
in the 70's it became the Stillman Diet
and in the'80's it became the Scarsdale Diet.
Protein Power Plan in the '90's.

50. AVOID FAD DIETS COMPLETELY !!

51. DIETARY INTAKE RECOMMENDATIONS
RECOMMENDED INTAKES OF PROTEIN
DRI – 0.8 grams of protein per kg body weight/day
healthy adults (19 and up)
percent of daily calories from protein
-compare to % from carbohydrate
-compare to % from fat

52. SUMMARY OF LECTURE 9 1) PROTEINS DEFINED 2) AMINO ACID STRUCTURE
3) AMINO ACIDS-AMINO DEFINITION
-ESSENTIAL OR NOT
-BUILDING BLOCKS
4) PROTEIN STRUCTURE
5) STRUCTURE DEFINES FUNCTION
6) IDATME
7) REBUILD INTO STRUCTURE AND HENCE FUNCTION WE USE
8) PROTEINS-ESSENTIAL OR NOT?- HEALTHY ROLES
9) PROTEINS IN FOOD
10) FAD DIETS
11) PROTEINS- DRIs

53. NEXT LECTURE
DIETARY PROTEINS IN SPORTS