PSIO exam 1 review

Metabolism can be broken into which two sub categories?

• Catabolism

• Anabolism

• Glycolism

• Amino Acids

• Nucleotides

Which of the following best explains what Responsiveness is?

• Increase in the number of cells

• The sum of all chemical processes in the body

• The formation of new cells

• The ability to detect and respond to changes in the internal or external environment

Which accurately describes the key differences between catabolism and anabolism?

• Catabolism is the specialization of cells for a specific function; anabolism is the increase in the number of cells, size of cells of the material found between cells

• Catabolism is the construction of larger molecules from smaller ones; anabolism is the breakdown of larger molecules into smaller ones

• Catabolism is the breakdown of lager molecules into smaller ones; anabolism is the construction of larger molecules from smaller ones

• Catabolism is increase in the number of cells, size of cells or the material found between cells; anabolism is the specialization of cells for a specific function

All of the following are characteristics of a negative feedback loop EXCEPT...

• Most feedback loops in the body are negative

• response opposes the initial stimulus

• Used for conditions that need constant adjustment

• Response reinforces initial stimulus

Which of the following is the best definition of homeostasis

• The condition in which the body's internal environment remains relatively constant

• The condition in which the bodys external environment remains relatively constant

• A relatively inexpensive way for the body to remain within physiological limits

• the condition in which the body is at equilibrium

What is the fourth step in the scientific method

• Experimental testing

• Observation

• Development of a hypothesis

• Analysis and conclusion

True or False the set point is the stable mean around which a controlled condition varies

• True

• False

All of the following about body fluid distribution are true EXCEPT

• all fluid outside the cells is ECF

• All fluid within cells is ECF

• ISF fills narrow spaces between cells

• ECF= ICF+plasma

Hydrophobic means..

• The molecule does not like water and contains mostly non polar covalent bonds

• 
  The molecule likes water and contains mostly polar covalent bonds

• 
  The molecule does not like water and contains ionic bonds

• The molecule likes water and contains ionic bonds

All of the following are inorganic molecules EXCEPT

• salt

• water

• acid

• base

• lipid