Formative Flashcards
Energetically unfavourable reactions can only proceed because they?
Are couple to catabolic reactions
How is a nucleotide described?
Base + ribose sugar + phosphate
Lipid membrane surrounding eukaryotic cells does not contain
Ribosomes
Which structure of protein is amino acid sequence described as?
Primary
An enzyme increase the rate of a spontaneous reaction by..
Decreasing the activation energy
Monomers of carbohydrates are linked together by?
Glycosidic bonds
Catabolism of 1 mol of glucose produces a net gain of how many ATP?
2
Ingesting alcohol reduces which one of the following intermediates in the liver?
NAD+
What is the name of the molecule that transports electrons between complexes III and IV of the electron transport chain?
Cytochrome C
ATPase utilises what mechanism in order to generate ATP?
Binding-change mechanism
Which vitamin is not derived from a lipid?
Vitamin C
Excess acetyl Co-A from fatty acids gives rise to formation of?
Ketones
Which amino acid is central to nitrogen entering the body?
Glutamate
Which cycle is important in nitrogen metabolism?
Glucose-Alanine cycle
How much of water taken in by a person will go into the extracellular fluid?
1/3
The resting membrane potential is directly generated by:
The permeability of the resting membrane to K+
Which potential is always large enough to evoke an AP in the muscle?
End-plate potential
Thick filaments of skeletal muscle are composed of what?
Myosin
Contraction of skeletal muscle requires what?
The release of Ca2+ from the sarcoplasmic reticulum?
An antagonist at a pharmacological receptor will have what?
High affinity and low efficacy
An increase in gut motility is caused by?
The activation of the parasympathetic system
Golgi tendon organs are stimulated by?
Increased tension and cause relaxation of the muscle
Viral infection would typically cause elevated levels of which blood cell type?
Lymphocytes
