Practise MYP Biology questions on 3.1 Biochemistry and review the explanations to check your understanding.
Use these questions for topic practice and to find ideas you want to revisit in your notes or lessons.
True or False: Breaking a chemical bond in a reactant molecule is an endothermic process that requires an input of energy.
True or False: A reaction that releases a very large amount of total energy will always happen faster than a reaction that releases a small amount of energy.
The process of copying a cell's DNA prior to division is classified as part of metabolism because it __________.
Under what physiological condition do human cells typically initiate the conversion of glucose into fatty acids for storage as triglycerides?
Metabolism involves the sum of all chemical reactions in an organism, including the breakdown of __________ and waste products.
True
False
results in the breakdown of the cell's nucleus
involves complex biochemical reactions to build a new molecule
is a physical change rather than a chemical one
releases toxic ethanol as a byproduct
True
False
When the body is in a state of extreme starvation
When blood glucose levels exceed the immediate energy requirements of the cell
When the concentration of oxygen in the cell is too low for respiration
When there is a deficiency of amino acids in the diet
catalysts
transition states
toxins
activation energy
