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Meat Science > Final Exam > Flashcards

Final Exam Flashcards

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Biology 101 flashcards
1
Q

Major Components of the Carcass

A

Water
Muscle
Connective Tissue
Epithelial Tissue
Nervous Tissue

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2
Q

What % of carcass is water?

A

75%

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3
Q

Connective Tissue

A

Adipose
Bone
Cartilage
Collagen

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4
Q

3 Primary Components of a Carcass

A

Muscle
Bone
Fat

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5
Q

Muscle, bone, and fat are the main components responsible for _________.

A

Meat quality
Leanness

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6
Q

Voluntary Muscle

A

Skeletal

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7
Q

Involuntary Muscle

A

Smooth
Cardiac

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8
Q

Skeletal Muscle

A

Voluntary
Striated
Multiple Nuclei

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9
Q

Smooth Muscle

A

Involuntary
Non-striated
1 Nuclei

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10
Q

Cardiac Muscle

A

Involuntary
Striated
Multiple nuclei
Branched
Intercalated discs

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11
Q

Levels of Skeletal Muscle Structure

A
  1. Muscle
  2. Muscle Bundle
  3. Muscle Fiber (Myofiber)
  4. Myofibril
  5. Myofilaments
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12
Q

What encases the muscle?

A

Epimysium

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13
Q

What encases muscle bundle?

A

Perimysium

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14
Q

What encases muscle fibers (myofibers)?

A

Endomysium

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15
Q

What is the cell wall?

A

Sarcolemma

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16
Q

What is the intracellular fluid?

A

Sarcoplasm

17
Q

One sarcomere is _______.

A

Z-line to Z-line

18
Q

Length is dependent on the state of _____.

A

Contraction

19
Q

2 Types of Myofilaments

A

Actin- Thin filament
Myocin- Thick filament
Proteins of contaction

20
Q

Contractile Proteins

A

Actin and Myosin

21
Q

Regulatory Proteins

A

Tropomyosin and Troponin
Serve to regulate contraction (speed)

22
Q

Cytoskeletal Proteins

A

Titin and Nebulin

23
Q

Functions of Myosin

A

Hydrolysis of ATP
Binds actin causing muscle contraction

24
Q

Red Fibers

A

Higher myoglobin content
Oxidative
Lower glycogen content

25
Q

White Fibers

A

Lower myoglobin content
Glycolytic

26
Q

Sum of all reactions in cells

A

Metabolism

27
Q

Functions of Metabolism

A

Obtain chemical energy from fuel molecules
Convert building blocks into macromolecules
Balance between catabolic and anabolic activity

Meat Science (2 decks)

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