Biology Today and Tomorrow without Physiology (MindTap Course List)
5th Edition
ISBN: 9781305117396
Author: Cecie Starr, Christine Evers, Lisa Starr
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 3, Problem 2CT
Summary Introduction
To explain: A secondary cell wall forms on the inner side of the primary cell wall in plants instead of on the outer surface of it.
Concept introduction:
The plants are enclosed by cell wall secreted by extracellular matrix. It is the thin layer formed on the outer surface of the plasma membrane and allows the cell to enlarge during the growth. It is known as the primary cell wall. In some plants, such as woody plants, a secondary cell wall forms on the inner side of the primary cell wall. It is composed of lignin that is found in the xylem walls and fiber cells of woody tissues.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
In plants, the cell wall forms as a young plant cell secretes polysaccharides onto the outer surface of its plasma membrane. Being thin and pliable, this primary wall allows the cell to enlarge and change shape. At maturity, cells in some plant tissues deposit material onto the primary wall’s inner surface. Why doesn’t this secondary wall form on the outer surface of the primary wall?
Cell motility has been described as being like the motion of tank treads. At the leading edge, actin filaments form rapidly into bundles and networks that make protrusions and move the cell forward. At the rear, cell adhesions are broken and the tail end of the cell is brought forward. What provides the traction for moving cells? How does cell-body translocation happen? How are cell adhesions released as cells move forward?
What are the most abundant components of a plant cell walls? How do the components interact, and how are they arranged with respect to each other?
Chapter 3 Solutions
Biology Today and Tomorrow without Physiology (MindTap Course List)
Ch. 3 - Prob. 1FIOCh. 3 - Organelles and Cystic Fibrosis A plasma membrane...Ch. 3 - Organelles and Cystic Fibrosis A plasma membrane...Ch. 3 - Prob. 3DIDCh. 3 - All cells have these three things in common: a....Ch. 3 - Unlike eukaryotic cells, prokaryotic cells...Ch. 3 - Every cell is descended from another cell. This...Ch. 3 - Prob. 4SQCh. 3 - True or false? Some protists start out life with...Ch. 3 - Cell membranes consist mainly of ________ and...
Ch. 3 - Prob. 7SQCh. 3 - In a lipid bilayer, the of all the lipid molecules...Ch. 3 - The main function of the endomembrane system is...Ch. 3 - Enzymes contained in __________ break down...Ch. 3 - Put the following structures in order according to...Ch. 3 - No animal cell has a ______. a. plasma membrane b....Ch. 3 - Prob. 13SQCh. 3 - Prob. 14SQCh. 3 - Match each cell component with its main function.Ch. 3 - In a classic episode of Star Trek, a gigantic...Ch. 3 - Prob. 2CTCh. 3 - What type of 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
- Secretory vesicles fuse with the cell membrane to release their contents to the outside of the cell. In this process, the membrane of the secretory vesicle becomes part of the cell membrane. Because small pieces of membrane are continually added to the cell membrane, we would expect the cell membrane to become larger and larger as secretion continues. However, the cell membrane stays the same size. Explain how this happens.arrow_forwardMost adjacent plant cells are connected by plasmodesmata, whereas only certain adjacent animal cells are connected through gap junctions. What might account for this difference?arrow_forwardYou view a mature, living plant cell such as an epidermal cell under the light microscope. You view the cell at sufficiently-high magnification and you have also stained the cell for chromatin. The cell has a nucleus, yet you cannot see chromosomes, at least in their typical ’sausage-formed’ shape as we all know them from textbooks. Why is that?arrow_forward
- Which statement about the cytoskeleton is incorrect? Microtubules are hollow tubes of protein that provide structural support. Plant cells lack a cytoskeleton because they have a rigid cell wall. Intermediate filaments are more permanent structures in cells compared to microfilaments and microtubules. Microfilaments are chains of proteins that resist stretching. Components of the cytoskeleton are often involved with movement of organelles within the cytoplasm.arrow_forwardCell Structure and Function Match the following organelles to their descriptions 1. 2. 3. 4. 5. cell wall 8. endoplasmic reticulum ribosome 9. central vacuole 6. chloroplasts cell membrane 7. nucleus Golgi apparatus Cytoplasm 10. lysosomes 11. mitochondria 12. cytoskeleton A. an organelle that produces ATP B. cell interior C. in plants, organelles that use light to make organic compounds. D. the cell's packaging and distribution center E. Controls all functions of cells and stores DNA F. encloses and regulates what enters and leaves the cell G. small organelles that contain the cell's digestive enzymes H. Site of protein synthesis I. in plant cells, a large, membrane-bound sac that stores water, nutrients, or other substances J. Fibers that give structure to the cell K. Supports and maintains shape of plant cells L. system of internal membranes that move proteins andarrow_forwardWhy is the plant cell rigid, but a human cheek cell is misshapen and folded over on itself?arrow_forward
- You are studying a plant and inject fluorescein, a fluorescent dye, into a single cell on the surface of the plant. After a brief period of time, the dye spreads to cells neighboring the injected cell. What do you conclude? only one options: The cells are connected by the cell wall. The cells are connected by tight junctions. The cells are connected by gap junctions. The cells are connected by plasmodesmata.arrow_forwardWhy is cell wall called the outer fence of the plant cell?arrow_forwardLabel and show the loeatons of the following organelles on the dagram of a plant cell below: Cell wall, Plasma (cell) membrane, cytoplasm, mitochondria, chloroplast, nucleus, vacuole, endoplasmic reticulum, ribosomes, nuclear membrane, nucleolus, golgi apparatus 0 0 0 0arrow_forward
- The formation of a cell membrane is beginning across the middle of a cell and nuclei are re-forming at opposite ends of the cell. What kind of cell is this?arrow_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 _________? They are not intrinsically polar The cell can not control their assembly They are found only at certain cell junctions They can not interact with membranes They can not disassemblearrow_forward.a) In Activity 3, you drew plant cells and you may have noticed that the cells appear rectangular or square in shape. Which structure of the plant cell gives the cell its rigid, defined shape? b.Is this structure found in animal (cheek) cells?arrow_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