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: AN INTEGRATIVE AP
- Identify the indicated tissue? (stem x.s.) parenchyma collenchyma sclerenchyma ○ xylem ○ phloem none of thesearrow_forwardWhere did this structure originate from? (Salix branch root) epidermis cortex endodermis pericycle vascular cylinderarrow_forwardIdentify the indicated tissue. (Tilia stem x.s.) parenchyma collenchyma sclerenchyma xylem phloem none of thesearrow_forward
- Identify the indicated structure. (Cucurbita stem l.s.) pit lenticel stomate tendril none of thesearrow_forwardIdentify the specific cell? (Zebrina leaf peel) vessel element sieve element companion cell tracheid guard cell subsidiary cell none of thesearrow_forwardWhat type of cells flank the opening on either side? (leaf x.s.) vessel elements sieve elements companion cells tracheids guard cells none of thesearrow_forward
- What specific cell is indicated. (Cucurbita stem I.s.) vessel element sieve element O companion cell tracheid guard cell none of thesearrow_forwardWhat specific cell is indicated? (Aristolochia stem x.s.) vessel element sieve element ○ companion cell O O O O O tracheid O guard cell none of thesearrow_forwardIdentify the tissue. parenchyma collenchyma sclerenchyma ○ xylem O phloem O none of thesearrow_forward
- Please answer q3arrow_forwardRespond to the following in a minimum of 175 words: How might CRISPR-Cas 9 be used in research or, eventually, therapeutically in patients? What are some potential ethical issues associated with using this technology? Do the advantages of using this technology outweigh the disadvantages (or vice versa)? Explain your position.arrow_forwardYou are studying the effect of directional selection on body height in three populations (graphs a, b, and c below). (a) What is the selection differential? Show your calculation. (2 pts) (b) Which population has the highest narrow sense heritability for height? Explain your answer. (2 pts) (c) If you examined the offspring in the next generation in each population, which population would have the highest mean height? Why? (2 pts) (a) Midoffspring height (average height of offspring) Short Short Short Short (c) Short (b) Short Tall Short Tall Short Short Tall Midparent height (average height of Mean of population = 65 inches Mean of breading parents = 70 inches Mean of population = 65 inches Mean of breading parents = 70 inches Mean of population = 65 inches Mean of breading parents = 70 inchesarrow_forward
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning