Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337670319
Author: STARR
Publisher: Cengage
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 4, Problem 12SQ
Summary Introduction
Introduction: Cell junctions are multiprotein structures that link cells to each other and to the environment. They help in cell–cell communication and signal transduction in multicellular organisms such as animals and plants. They can be classified as intercellular and extracellular.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Cell junctions called connect the cytoplasm of adjacent plant cells. a. plasmodesmata d. adhesion proteins b. adhering junctions e. chloroplasts c. tight junctions f. gap junctions
Which of these cell junctions are open channels that connect the cytoplasm of adjoining plant cells?
A. Adhering junctions
B. Tight junctions
C. Gap junctions
D. Plasmodesmata
The main difference between plant and animal cells is:
A
Plant cells has small vacuoles
B
Animal cell lacks rigid cell wall
C
Animal cells has large vacuoles
D
Plant cell lacks rigid cell wall
Chapter 4 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 4 - Effects of Kartagener Syndrome An abnormal form of...Ch. 4 - All cells have these three things in common:...Ch. 4 - Which of the following is,not a principle of the...Ch. 4 - The surface-to-volume ratio _______. a. does not...Ch. 4 - A plasma membrane ________. a. controls exchanges...Ch. 4 - True or false? Ribosomes are only found in...Ch. 4 - Unlike eukaryotic cells, prokaryotic cells ______....Ch. 4 - What controls the passage of molecules into and...Ch. 4 - The main function of the endomembrane system is:...Ch. 4 - Enzymes. contalned in _______ break down worn-out...
Ch. 4 - Put the following structures in order according to...Ch. 4 - Which of the following statements is false? a. The...Ch. 4 - Prob. 12SQCh. 4 - Which of the following organelles contains no DNA?...Ch. 4 - No animal cell has a ___________. a. plasma...Ch. 4 - Prob. 15SQCh. 4 - Expalin the difference between cytosol and...Ch. 4 - In a classic episode of Star Trek, a gigantic...Ch. 4 - Prob. 3CTCh. 4 - What type or micrograph is shown below? Is the...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Compared with a smaller cell, a larger cell of the sameshape has(A) less surface area.(B) less surface area per unit of volume.(C) the same surface-area-to-volume ratio.(D) a smaller cytoplasm-to-nucleus ratioarrow_forwardA cell that contains a lot of mitochondria is most likely ___. Select one: a. producing a lot of ribosomes b. using a lot of energy c. using a lot of phospholipids d. producing a lot of proteinarrow_forwardYou observe organelles moving within the cytoplasm of a cell and conclude that this movement must be associated with either microtubules or actin filaments. The reason that intermediate filaments could not be associated with this motility phenomena is because A. They are found only at certain cell junctions. B. The cell can not control their assembly. C. They can not interact with membranes. D. They are not intrinsically polar. E. They can not disassemble.arrow_forward
- Junctions that permit the transfer of water, ions, and molecules between adjacent plant cells are (a) tight junctions (b) adhering junctions (c) desmosomes (d) gap junctions (e) plasmodesmataarrow_forwardIn animal cells, lysosomes are the organelles in charge of digesting enzymes withnutrients that the cell consumes. If all the lysosomes in a cell were to break, what wouldwould initially happen to the cell?A. Molecules within it would degrade.B. It would lose all the water in the cytoplasm.C. There would be no cellular respiration.D. No proteins would form.arrow_forwardWhich of the folllowing organelles/complexes makes proteins? A. The Nucleus B. Cytoplasm C. Peroxisomes D. Ribosome E. Golgi Apparatusarrow_forward
- In which of the following ways does a bacterial cell differ from an animal cell? a. A bacterial cell is much larger than an animal cell. b. A bacterial cell has more mitochondria than an animal cell. c. A bacterial cell has RNA for its genetic material, whereas an animal cell does not. d. A bacterial cell does not have membrane-bound organelles, whereas an animal cell does.arrow_forwardDiseased animal cells may produce molecules thatactivate death cascades to kill the cells in a controlledmanner. Why would neighboring healthy cells also die?a. The death molecule is passed throughdesmosomes.b. The death molecule is passed throughplasmodesmata.c. The death molecule disrupts the extracellularmatrix.d. The death molecule passes through gap junctions.arrow_forwardWhich of the following junctions allows for cytoplasm-to-cytoplasmcommunication between cells?a. adhesion junctions c. gap junctionsb. tight junctions d. None of these are correct.arrow_forward
- A cell that is specialized for movement requires a great deal of energy. What organelles do you think would be especially abundant in such a cell? Why?arrow_forwardJoins the intermediate filaments in one cell to those of a neighboring cell a) Adheren Junctions b)Hemidesmosomes c)Tight Junctions d)Desmosomes e)Gap Junctionsarrow_forwarda) Difference between Endocytosis and exocytosis b) Difference between DNA vs RNA vs Protein c) Difference between PCR vs DNA replication d) Difference between Sympathetic vs Para-sympathetic nervous systemarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning