Straighterline – A &P 1 Midterm Exam Questions and Answers

Straighterline – A &P 1 Midterm Exam Questions and Answers Proximal means - Answer-closer than another structure to the point of attachment to the trunk An increase in the number of cells is - Answer-growth Platelets adhere to a damaged blood vessel → Platelets secrete various substances → Platelets adhere to a damaged blood vessel This is an example of _____ feedback. - Answer-positive In an oxidation-reduction reaction, ______ are transferred between molecules - Answer-electrons Enzymes are proteins that increase the rate of chemical reactions by - Answer-decreasing the activation energy of the reaction Potential energy is - Answer-stored energy that could do work but is not doing so The presence of water in our bodies allows us to - Answer-cool the body with sweat, maintain a fairly constant body temp, provide an environment for chemical reactions, keep tissues moist and reduce friction The molecular formula H2O means - Answer-2 hydrogen atoms and 1 oxygen atom Chemical reactions with the property of being able to proceed from reactants to products and from products to reactants are called - Answer-reversible reactions An electrolyte is - Answer-a substance that conducts electricity when placed in solution. X-rays can be used to view bones because - Answer-x-rays cannot pass through bone