34 THE CELL, ITS STRUCTURE AND FUNCTIONS 



QUESTIONS 



1. Describe the term metabolism. 



2. Is oxygen considered a food? 



3. What do you understand by the term katabolism? Anabo- 

 lism? 



4. Why is food essential to the body's requirements? 



5. What is meant by a calorie? 



6. What term is used that expresses the determination of the 

 amount of heat and energy to be derived from the different foods 

 we eat and digest? 



7. What factors will vary the determination of the number of 

 calories required to furnish a certain amount of heat and energy 

 from the food we eat? 



8. What histologic unit underlies all the phenomena of physio- 

 logic life as: growth, repair, disintegration, heat, energy, and life 

 of the tissues? 



9. What functions is a cell capable of? 



10. How do cells derive their nutrition? Repair waste? Renew its 

 functional properties? 



11. How do cells reproduce themselves? 



12. Describe the term karyokinesis. 



13. Name the properties of a cell. 



14. What external stimulus will produce irritability in a cell? 



15. What do you understand by the term as used in connection 

 with the properties of a cell-irritability? Conductivity? Motility? 



