Basic principles of muscle biology and meat science

Question 1

Name the different types of meat

Answer 1

1. Red meat
2. Venison
3. Seafood
4. Poultry meat

Question 2

What is Venison?

Answer 2

Meat from game / non-domesticated animals

Question 3

What are the 3 basic types of muscle?

Answer 3

1. Skeletal muscle
2. Cardiac muscle
3. Smooth muscle

Question 4

Describe the mitochondrial content variation in muscle

Answer 4

1. High mitochondrial content in slow twitch aerobic muscle red fibres
2. Low mitochondrial content in fast twitch anaerobic white fibres

Question 5

What is SDH?

Answer 5

Succinate dehydrogenase - a mitochondrial enzyme, indicates high or low mitochondrial activity

Question 6

What is αGPDH?

Answer 6

α-glycerophosphate dehydrogenase - cytoplasmic enzyme, which indicates glycolytic potential and therefore anaerobic metabolism

Question 7

Name the skeletal muscle fibre types

Answer 7

1. Slow oxidative (SO) - Type 1
2. Fast oxidative-glycolytic (FOG) - Type 2A
3. Fast glycolytic (FG) - Type 2B
4. Fast intermediate (FG) - Type 2X

Question 8

Name the intrinsic factors influencing muscle collagen

Answer 8

– Animal age
– Gender
– Growth and growth rate
– Muscle type
– Rate of collagen synthesis