Concept explainers
To determine: Why some triglycerides are in liquid form while others are in solid form at room temperature?
Introduction: The lipids are non-polar hydrophobic molecules that include phospholipids, waxes, oils, steroids, and fats which make up the biological membranes. Structurally and functionally, the lipids are a diverse group of compounds. They are defined by their nature of insolubility in water.

Explanation of Solution
Triglycerides are the simple lipids that have three fatty acids joined with one molecule of glycerol. The triglycerides are hydrophobic. Since the fatty acids in the triglycerides possess the maximum possible amount of hydrogen, they would be called as saturated fats. In the saturated fatty acids, all bonds present between the carbon atoms in the hydrocarbon chain possess single bonds. They are relatively straight molecules and are able to tightly pack together. This makes the triglycerides to remain in a solid-state at room temperature. The molecular structure of unsaturated fats makes them liquid at room temperature. In unsaturated fatty acid, the hydrocarbon chain possesses one or more double bonds between the carbon atoms. The double bonding between the carbon atoms results in kinks that prevent them from tight packing. Thus, they have relatively lower melting point.
Want to see more full solutions like this?
Chapter 3 Solutions
PRINCIPLES OF LIFE:DIGITAL...-ACCESS
- What is behavioral adaptarrow_forward22. Which of the following mutant proteins is expected to have a dominant negative effect when over- expressed in normal cells? a. mutant PI3-kinase that lacks the SH2 domain but retains the kinase function b. mutant Grb2 protein that cannot bind to RTK c. mutant RTK that lacks the extracellular domain d. mutant PDK that has the PH domain but lost the kinase function e. all of the abovearrow_forwardWhat is the label ?arrow_forward
- Can you described the image? Can you explain the question as well their answer and how to get to an answer to an problem like this?arrow_forwardglg 112 mid unit assignment Identifying melting processesarrow_forwardGive only the mode of inheritance consistent with all three pedigrees and only two reasons that support this, nothing more, (it shouldn't take too long)arrow_forward
- Oarrow_forwardDescribe the principle of homeostasis.arrow_forwardExplain how the hormones of the glands listed below travel around the body to target organs and tissues : Pituitary gland Hypothalamus Thyroid Parathyroid Adrenal Pineal Pancreas(islets of langerhans) Gonads (testes and ovaries) Placentaarrow_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





