Concept explainers
All of the following general functions are carried out by all cells except
- a. obtaining nutrients and chemical building blocks.
- b. maintaining integrity of the plasma membrane.
- c. replacing cells through cell division.
- d. disposing of wastes.
Introduction:
The cell is a functional and structural unit of all living organisms and makes the basic building block of the body. Each type of cell performs specific functions such as disposal of the waste product, maintenance of shape and integrity of the cell, and obtaining nutrient from its surrounding fluids.
Answer to Problem 1DYB
Correct answer:
The obtaining of the nutrients and chemical building blocks, maintaining the integrity of the plasma membrane, and disposing of waste, are the general functions performed by the cell. Therefore, option c. is correct.
Explanation of Solution
Reason for the correct statement:
Option c. is given as “replacing cells through cell division”. Some cells divide frequently such as epithelium cell of the intestine and an outer layer of skin, but most of the cells do not divide after maturation and specialization, such as muscle cells, nerve cells, and red blood cells. Hence, all the cells do not replace through cell division.
Hence, option c. is correct.
Reasons for incorrect statements:
Option a. is given as “obtaining nutrients and chemical building blocks”. Cells obtain their nutrients from the surrounding in order to complete metabolism and energy formation. Hence, option a. is incorrect.
Option b. is given as “maintaining the integrity of the plasma membrane”. Plasma membrane supports the cell in maintaining the framework and shape of the cell. Hence, option b. is incorrect.
Option d. is given as “disposing of waste”. Accumulation of waste products interfere with the normal functioning of the cell, and they are disposed of by the cell. Hence, option d. is incorrect.
Hence, options a., b., and d. are incorrect.
Cell replacement through cell division is not performed by adult and specialized cells.
Want to see more full solutions like this?
Chapter 4 Solutions
Anatomy & Physiology
- Below are three statements - two of which are truths and one is a lie. Which of the following statements is a lie? a. Rough ER and smooth ER mainly function for protein synthesis. b. There are two types of secretory activities of a cell. c. A cell that makes steroid hormones has a high concentration of smooth endoplasmic reticulum.arrow_forwardWhich of the following is Not a function of the plasma membrane proteins? A. Acting as enzymes B. Acting as channels C. Acting as carriers D. Stabilizing temperaturearrow_forwardProteins of the plasma membrane carry out all of the following functions except Select one: a. anchoring the cell to external structures. b. transporting substances across the membrane. C. sending and receiving signals to and from other cells. d. binding to DNA to turn on genes. e. catalyzing chemical reactions at the inner or outer surface of the membrane.arrow_forward
- A cell that synthesizes large amounts of protein for use outside thecell has a largea. number of cytoplasmic inclusions.b. number of mitochondria.c. amount of rough endoplasmic reticulum.d. amount of smooth endoplasmic reticulum.e. number of lysosomes.arrow_forwardPlasma membranes are selectively permeable. This means: A. cholesterol cannot enter B. anything can pass in and out C.the membrane regulates the passage of the material in and out of the cell D. glucose cannot enter the cellarrow_forwardWhich of the following is not a function of the extracellular matrix Select one: A. Prevents the loss of water when cells are placed in a hypertonic solution. B. Assists in the movement of substances across the plasma membrane. C. Has numerous functions that affect the shape and activities of the cell that produced it. D. Takes place in reception of moleculesarrow_forward
- Identify the component of plasma membrane that allows it to carry out its function.arrow_forwardWhich of the following statements about cellular membranes is/are FALSE? A. Only lipids move Within the membrane, while the proteins are anchored and immobile. B. Membranes are composed of lipids and proteins. C. Substances may be transported across membranes by active transport, facilitated transport or diffusion. D. Membrane proteins are classified as integral or peripheral, upon their functionarrow_forwardYou are working in a lab and need to help a doctor discover the cause of a disorder related to cellular organelles. Study the list of symptoms given and provide a cellular explanation for the following symptoms experienced by patients. A 42 year old male that has had no major health issue to date complains of weight gain and tiredness. Laboratory results are negative for hepatitis and shows excessive glycogen granules in the liver. In addition there are high levels of fat in the liver (abnormal metabolism) and the male has low testosterone levels. Additional laboratory results show an abnormal calcium balance in the cells. Which organelle(s) may be responsible for these symptoms? Explain your reasoningarrow_forward
- Which of the following will likely result if the concentration of electrolytes outside the cell is higher than in the intracellular environment? A. The cell will be unaffected B. The cell will burst C. The cell will shrink and dry up D. The cell will undergo mitosis and dividearrow_forwardThe functions of the cell part labeled “Z” include —arrow_forwardMake a summary of the importance of at least ten different cell parts /organelles in the normal activities of the cell.arrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning