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. Skeletal Muscle Physiology, Metabolism and Nutrition (Revision) Quiz am January Exam Quiz, erstellt von V B am 20/12/2015.

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January Exam Quiz

Frage 1 von 9

1

The joining of multiple monosaccharides to form a disaccharide or polysaccharide is made possible by the formation of what type of bond?

Wähle eine der folgenden:

  • Peptide bond

  • Glycoside bond

  • Covalent bond

  • Hydrogen bond

  • A and B

Erklärung

Frage 2 von 9

1

Which of the following allosteric effectors does NOT positively regulate glycogen phosphorylase?

Wähle eine der folgenden:

  • CA3+

  • ADP

  • AMP

  • Pi

  • ATP

Erklärung

Frage 3 von 9

1

Lipolysis in adipose tissue and skeletal muscle is regulated by three enzymes. What are they?

Wähle eine der folgenden:

  • HSL, CPT-1, MGL

  • FAT/CD36, MGL, ATGL

  • ATGL, HSL, B-HAD

  • MGL, HSL, ATGL

  • HSL, ATGL, CPT-1

Erklärung

Frage 4 von 9

1

The conversion of pyruvate to acetyl-CoA is dependent on which enzyme?

Wähle eine der folgenden:

  • CK

  • PFK

  • HK

  • PC

  • PDH

Erklärung

Frage 5 von 9

1

In order for fatty acids to be oxidised they must first enter the mitochondria in skeletal muscle. What is the key enzyme regulating entry of long chain fatty acids into mitochondria?

Wähle eine der folgenden:

  • ATGL

  • HSL

  • AMPK

  • CPT-1

  • B-HAD

Erklärung

Frage 6 von 9

1

During the first weeks of a resistance-training intervention in which the weekly workload is increased there is an increase in muscle protein synthesis. Which proteins are synthesised more rapidly?

Wähle eine der folgenden:

  • Slow isomers of myosin heavy chain

  • Enzymes of B-oxidation

  • All muscle proteins

  • Enzymes of TCA-cycle

  • Myofibrillar proteins

Erklärung

Frage 7 von 9

1

Hormone-sensitive lipase (HSL) activity in skeletal muscle is increased during moderate-intensity exercise in response to which regulatory factor(s)?

Wähle eine der folgenden:

  • Adrenaline & AMPK

  • Adrenaline & muscle contraction (Ca2+)

  • AMPK & insulin

  • Muscle contraction (Ca2+) & insulin

  • Adrenaline only

Erklärung

Frage 8 von 9

1

The rate of beta-oxidation is reduced in the mitochondria by which two regulatory factors?

Wähle eine der folgenden:

  • Increased carnitine, increased free CoA

  • Increased acetyl-CoA, increased NADH

  • Decreased carnitine, decreased free CoA

  • Decreased acetyl-CoA, decreased NADH

  • Increased carnitine, decreased NADH

Erklärung

Frage 9 von 9

1

During the first weeks of an endurance-training intervention in a previously sedentary individual there is an increase in muscle protein degradation. Which proteins are broken down more rapidly?

Wähle eine der folgenden:

  • Myofibrillar proteins

  • Fast isomers of myosin heavy chain

  • Slow isomers of myosin heavy chain

  • Enzymes of beta-oxidation

  • All muscle proteins

Erklärung