BIO 1000 Lecture Notes - Lecture 7: Glycosidic Bond, Dehydration Reaction, Adipocyte

36 views12 pages

lilacsardine521

21 Feb 2017

School

St. John's University

Department

Biology

Course

BIO 1000

Professor

Jai Dwivedi

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

The structure and function of large biological molecules. All living things are made up of four classes of large biological molecules: carbohydrates, lipids, proteins, and nucleic acids. Within cells, small organic molecules are joined together to form larger molecules. Macromolecules are large molecules composed of thousands of covalently connected atoms. Molecular structure and function are inseparable: a polymer is a long molecule consisting of many similar building blocks, these small building-block molecules are called monomers, three of the four classes of life"s organic molecules are polymers: Polysaccharides: polysaccharides, the polymers of sugars, have storage and structural roles, the structure and function of a polysaccharide are determined by its sugar monomers and the positions of glycosidic linkages. Protein structure and function: a functional protein consists of one or more polypeptides twisted, folded, and coiled into a unique shape, the sequence of amino acids determines a protein"s three-dimensional structure, a protein"s structure determines its function.

Related Questions

1. List the Four Classes of organic macromolecules

2. List the differences between organic and inorganic molecules.

3. Explain how monomers are related to polymers

4. What are the building blocks of the four main Macromolecules?

5. Define the following-A. Dehydration reactions B. Hydrolysis reaction

6. How do humans and plants store polysaccharides?

7. What is a Triglyceride? Please list 3 other lipids outlined in this chapter

ochrekoala515

There are four major groups of macromolecules. These include proteins, carbohydrates, lipids, and nucleic acids. Macromolecules are molecules constructed by attaching smaller molecules together into to one macromolecule that has specific properties and that may function as an independent unit.

For this discussion, pick one class of macromolecules and provide details about the structure of the compounds found in that class. Then choose an example from that class and describe one of its functions in a living organism. You may look in any part of the organism. For example, lipids are used by skin cells and neurons or nerve cells. Are their functions always the same in both instances?

browncockroach21

1. Use the following definitions and phrases to describe to which molecules of life and their subunits it belongs:

a. Energy-storing molecule, typically water soluble - b. Subunits are called monosaccharides â c. Used to speed chemical reactions - d. Subunits are joined to each other with peptide bonds - e. Most prevalent molecule in cell membranes - f. Some of them function as hormones - g. Used for storing, transmitting, and executing genetic information - h. Subunits are nucleotides

2. Weak hydrogen bonds between water molecules are responsible for the many properties of water. Acidity is expressed as pH. Buffers stabilize pH. a. What characteristics of water molecule makes it polar? Provide two examples why this property is important in microbiology. b. What is the role of buffers in living organisms, including microbes? c. What must be added to pure water to decrease OH- and/or H+ concentration, respectively

3. Carbohydrates serve as storage molecules and structural material. Lipids are hydrophobic molecules; phospholipids are main component of cell membranes. Protein has a complex structure based on identity and sequence of amino acids. Nucleic acids (DNA and RNA) are genetic station of storage information and for synthesis of proteins. ATP serve as the main energy source in the living cell. a. Name the subunits (building blocks) of carbs, simple lipids, proteins, and nucleic acids b. What level of protein structure is described as an alpha helix? c. If DNA is placed in boiling water, what and how the molecule would change?

BIO 1000 Lecture Notes - Lecture 7: Glycosidic Bond, Dehydration Reaction, Adipocyte

Document Summary

Get access

Related textbook solutions

Molecular Cell Biology

Biology: Science for Life with Physiology

Concepts of Biology

Biology

Essentials of Biology

Related Documents

BIO 1000 Lecture Notes - Lecture 5: Dehydration Reaction, Hydrolysis, Covalent Bond

BIO 1000 Lecture Notes - Lecture 9: Messenger Rna, Nitrogenous Base, Cell Nucleus

BIOL 1406 Lecture 5: BIology notes ch. 5

Related Questions