Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 4.8, Problem 2TYK
Summary Introduction
Introduction:
Muscles are the connective tissues that are widely spread throughout the body and help to provide movement and flexibility to the body. The muscles are divided into cardiac, skeletal, and visceral muscles.
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The Collagen proteins, which are strong flexible fibers that resist stretching have
four levels of protein structure. In other words, they have the quaternary level. From
this you can conclude that Collagen:
is not pleated or coiled.
Olacks hydrogen bonds.
is made of multiple polypeptides.
is made of only one polypeptide chain.
is not made of amino acids.
In myoglobin (above), which level of protein organization includes peptide bonds, hydrogen bonds, ionic bonds, hydrophobic interactions, and van der Waal forces?
the primary structure
the secondary structure
the tertiary structure
the quaternary structure
all of the above
Which of the following are characteristics of both actin filaments and microtubules?
Select all that apply
They have structural polarity
Their filaments undergo treadmilling
Capping proteins affect length and stability of the filament
The monomers bind ATP and spontaneously form polymers
Chapter 4 Solutions
Principles of Biology
Ch. 4.1 - With regard to the origin of life, why are...Ch. 4.1 - Prob. 2CCCh. 4.1 - Prob. 3CCCh. 4.1 - Prob. 1BCCh. 4.1 - Prob. 4CCCh. 4.1 - Prob. 1TYKCh. 4.1 - Prob. 2TYKCh. 4.1 - Prob. 3TYKCh. 4.2 - Prob. 1CCCh. 4.2 - Prob. 1TYK
Ch. 4.2 - Prob. 2CCCh. 4.2 - Prob. 2TYKCh. 4.3 - Prob. 1BCCh. 4.3 - Prob. 1CCCh. 4.3 - Prob. 2BCCh. 4.3 - Prob. 1TYKCh. 4.3 - Prob. 2TYKCh. 4.3 - Prob. 3TYKCh. 4.4 - Prob. 1BCCh. 4.4 - Prob. 1CCCh. 4.4 - Prob. 1TYKCh. 4.4 - Prob. 2BCCh. 4.4 - Prob. 2TYKCh. 4.4 - Prob. 3TYKCh. 4.5 - What is the function of the nuclear lamina and the...Ch. 4.5 - Prob. 1BCCh. 4.5 - Prob. 2CCCh. 4.5 - Prob. 1TYKCh. 4.5 - Prob. 2TYKCh. 4.5 - Prob. 3TYKCh. 4.6 - What is the advantage of having a highly...Ch. 4.6 - Prob. 1BCCh. 4.6 - Prob. 2CCCh. 4.6 - Prob. 1TYKCh. 4.6 - Prob. 2TYKCh. 4.7 - Prob. 1TYKCh. 4.8 - Prob. 1CCCh. 4.8 - Prob. 2CCCh. 4.8 - Prob. 3CCCh. 4.8 - Prob. 4CCCh. 4.8 - Prob. 1TYKCh. 4.8 - Prob. 2TYKCh. 4.8 - Prob. 3TYKCh. 4.9 - Which of the following could be found in a...Ch. 4.9 - Prob. 2TYKCh. 4 - The cell theory states that all living things are...Ch. 4 - Prob. 2TYCh. 4 - Prob. 3TYCh. 4 - Prob. 4TYCh. 4 - Prob. 5TYCh. 4 - Prob. 6TYCh. 4 - Prob. 7TYCh. 4 - Prob. 8TYCh. 4 - Prob. 9TYCh. 4 - Prob. 10TYCh. 4 - Describe two specific ways that protein-protein...Ch. 4 - Explain how motor proteins and cytoskeletal...Ch. 4 - A principle of biology is that structure...Ch. 4 - Prob. 1CBQCh. 4 - Prob. 2CBQ
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- Which of the following most accurately describes tight junctions? They allow adjacent cells to share tensile stress by linking their intermediate filament cytoskeletons They allow adjacant cells to control the passage of molecules between them They bind actin filaments and assist cells to crawl They allow cells to directly exchange small molecules with adjacent cellsarrow_forwardWhich of the following sentences regards ECM in cartilages is NOT correct? ECM does not contain * A. hyaluronan (is a linear, non-sulfated polysaccharide that provides compression strength, lubrication and hydration) B. chondroitin sulfate is a glycosaminoglycan that is bound to the core protein, forming proteoglycan C. link and core proteins, and multi-adhesive glycoprotein chondronectin D. The high content of bound water allows cartilage to serve as a shock absorber, an important functional role E. dense meshwork of thin type IV collagen fibrils None choices C, D, Earrow_forward"From Cows, Spider's Silk" In 1996 Equinox reported that two scientists were investigating spider dragline silk. This is the silk that a spider hangs from and uses to build the frame portion of its web. Spider silk can be as strong per unit weight as high-tensile steel; it can stretch more than nylon; and it is tougher than the Kevlar used in bullet-proof vests. It is hoped that synthetic spider silk can be produced and used to manufacture wear-resistant clothing, rust-free automobile panels and bumpers, artificial tendons and ligaments, and suspension-bridge cables. Lynn Jelinski, a biophysicist at Cornell University, proposed a model to explain dragline silk's strength and elasticity. She and her colleagues have shown how components of natural silk hang together. Each fibre consists of two alanine-rich crystalline proteins embedded in a glycine-rich protein polymer. According to their model, the protein polymer makes the fibre elastic and the two types of crystalline protein give it…arrow_forward
- which of the following is false. Select all that apply. A tissue is the smallest living unit within the body. All cells possess a plasma membrane, cytoplasm, and nucleus. All cells have the same number and type of organelles. The head of a phospholipid is nonpolar and hydrophilic. A cell's cytoplasm consist of the organelles and cytosol.arrow_forwardWhat is not a similarity between motility of cilia/flagella and skeletal muscle? Group of answer choices: Both have cytoskeletal fibers arranged in a ring pattern Both involve motor proteins connected to a cytoskeleton "track" Both can produce movement Both require ATP hydrolysisarrow_forwardWhen the proteins of human gut epithelial cells adhere to each other so tightly that digestive enzymes from the intestinal lumen cannot pass between the cells, these proteins are exhibiting: unrestricted movement, similar to membrane phospholipids (like phosphatidylcholine) restricted movement, based on confinement by diffusion barriers (like tight junctions) restricted movement, based on tethering to extracellular molecules (like collagen) restricted movement, based on attachment to other cells (by proteins like keratin) restricted movement, based on anchoring to intracellular proteins (like spectrin)arrow_forward
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