Concept explainers
Introduction:
Mitosis refers to a nuclear division mechanism that maintains the chromosome number. When a nucleus divides by mitotic cell division, each new nucleus has the same chromosome number as the parent cell.
Answer to Problem 1SQ
Correct answer:
Mitosis and cytoplasmic division play an important role in both asexual reproduction of single-celled eukaryotes and growth and tissue repair in multicelled organisms. Hence, the correct answer is option e.
Explanation of Solution
Reason for correct answer:
Option e. is given as, “both a and b.”
In multicelled species, mitosis and cytoplasmic division are the basis of increases in body size and tissue remodeling, as well as ongoing replacements of damaged cells. Mitosis and cytoplasmic division are also part of asexual reproduction of single-celled eukaryotes. Hence, option e. is correct.
Reason for incorrect answer:
Option a. is given as, “asexual reproduction of single-celled eukaryotes.”
Although mitosis and cytoplasmic division are part of asexual reproduction, they also play an important role in growth and tissue remodeling during development in multicelled organisms. Hence, option a. is incorrect.
Option b. is given as, “growth and tissue repair in multicelled species.”
Mitosis and cytoplasmic division are the basis of growth and tissue remodeling in multicelled-organisms. Mitosis and cytoplasmic division are also part of asexual reproduction. Hence, option b. is incorrect.
Option c. is given as, “gamete formation in bacteria and archaea.”
Gamete formation in bacteria and archaea usually take place by binary fission. Hence, option c is incorrect.
Option d. is given as, “sexual reproduction in plants and animals.”
Meiosis is the basis of sexual reproduction in plants and animals. Hence, option d is incorrect.
Hence, the options a., b., c., and d. are incorrect.
Mitosis and cytoplasmic division are the basis of both asexual reproduction of single-celled eukaryotes and growth in multicelled organisms. Thus, the correct option is e.
Want to see more full solutions like this?
Chapter 11 Solutions
Biology: Concepts and Applications (MindTap Course List)
- In the image, you can see one cell that is in the process of mitosis. (Note that chromosomes are stained dark blue.) In which stage is this cell currently? A. Telophase B. Metaphase C. Interphase D. Prophase E. Cytokinesis F. Anaphasearrow_forwardMitosis and cytoplasmic division function in .a. asexual reproduction of single-celled prokaryotesb. development and tissue repair in multicelledspeciesc. sexual reproduction in plants and animalsarrow_forwardall of the following are functions of mitosis except:a. growth b. replacement of cells. c. repair of damaged tissues d. sexual reproduction ...explain your choice.arrow_forward
- A diploid cell has_______ the number of chromosomes as a haploid cell. a. one-fourth b. half c. twice d. four timesarrow_forwardDuring cytokinesis, a contractile ring of actin microfilament forms the ______________ and pinches the cell apart. A. Kinetochores B. Cleavage furrow C. Equator D. Astersarrow_forwarda. exocytosis endocytosis b. hydrolysis O phagocytosis e. receptor-mediatea d. pinocytosis 11. Doubling of genetic material in preparation for division occurs in which phase of the cell cycle? a. GO phase b. G1 phase c. G2 phase d. M phase e. S phase 12. The sister chromatids line up at an invisible plate in which stage of meiosis? a. prophase b. metaphase c. anaphase d. telophase e. cytokinesis 13. In cellular respiration, oxygen is directly involved in a. glycolysis b. Krebs cycle 14. The energy in ATP is stored in the c. electron transport chain e. fermentation d. chemiosmosis a. adenine base c. phosphate group e. negatively-charged охуgen d. phosphate bond 15. The Krebs cycle and Calvin cycle are similar in that b. ribose a. they require oxygen by chemiosmosis b. they produce carbon dioxide 16. Which process will not proceed without oxygen? c. they use up ATP e. they produce ATP d. . they recycle their starting compounds c. fermentation d. glycolysis a. Krebs cycle b. electron…arrow_forward
- What celluar events/processes are associated with G1,S,G2,and M phases of the cell cycle? With the phases of mitosis? Some example: A. DNA replication B. Beginning of mitosis C. Normal cell growth and function D. Breaksdown of nuclear membrane E.Separation of sister chromatids F.Alignment of chromosomes on the equator of the cell H.Triggering the compaction and condensation of chromosomes I. Attachment of microtubles to kinetochoresarrow_forwardOne of the following is not a function of ordinary cell division produces two daughter cells that are genetically identical Select one: a. Asexual reproduction of an organism b. Cell replacement c. Sexual reproduction d. Growth of an organismarrow_forwardIn intervals of interphase, G stands for_____ . a. gap c. Gey b. growth d. genearrow_forward
- Which of the following statements about mitosis is incorrect? a. Microtubules from the spindle poles attach to the kinetochores on the chromosomes. b. In anaphase, the spindle separates sister chromatids and pulls them apart. c. In metaphase, spindle microtubules align the chromosomes at the spindle midpoint. d. Cytokinesis describes the movement of chromosomes. e. Both the animal cell furrow and the plant cell plate form at their former spindle midpoint.arrow_forwardAccording to the theory of endosymbiosis, organelles, like mitochondria and chloroplasts, were once free-living cells that were absorbed into another cell. The relationship benefited both cells to stay together. What evidence do scientists observe today that supports the theory of endosymbiosis? Select all that apply. a There are ribosomes found inside mitochondria and chloroplasts just like there are inside cells. b Looking inside mitochondria and chloroplasts, one will find that they each contain their own DNA. c Mitochondria and chloroplasts are found inside all cell types. d Mitochondria and chloroplasts each have a membrane around them just like a cell would.arrow_forwardWhich of the following is a correct statement during life cycle events in a cell? A. chromatids seperate during S phase B. chromatids seperate during Meiosis II C. chromatids seperate during cytokinesis D. chromatids seperate during Meiosis Iarrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education