The Human Body in Health and Illness (Chapter 3)_Questions and Answers Updated and A+ Graded

The Human Body in Health and Illness (Chapter 3)_Questions and Answers Updated and A+ Graded What is the study of cellular structure and function? - ANS-Cytology. The ____ is the structural and functional unit of all living matter. - ANS-Cell. The cell is encased by a _______. - ANS-Cell membrane. Cell membrane is also called a what? - ANS-Plasma membrane. What does the cell membrane do? - ANS-Seperates intracellular material form extracellular material. What are the functions of the cell membrane? - ANS-To hold the cell together, and determine what substances are allowed to enter or leave the cell. The cell membrane is semipermeable -- true or false? - ANS-True. What makes up the cell membrane? - ANS-Phospholipids and protein and a small amount of carbohydrates. What do the protein molecules in the cell membrane do? - ANS-Provide structural support for the membrane, act as binding sites for hormones, and create pores through the lipid membrane. How can substances move across the semipermeable membrane? - ANS-Dissolve in the lipid portion, or cross the membrane by flowing through the pores. Inside the cell is divided into two compartments: 1,2. - ANS-The nucleus and the cytoplasm. What is the nucleus? - ANS-The control center of the cell. The nucleus is filled with a fliud substance called ______. - ANS-Nucleoplasm.