Table of Contents
- 1 Which of the following molecules can be joined together to produce starch?
- 2 What molecules form starch?
- 3 What macromolecule is produced in protein synthesis?
- 4 What polymers make up starch?
- 5 What is starch cellulose?
- 6 What is structure of cellulose?
- 7 What kind of macromolecule is cellulose?
- 8 Which molecule is a product of dehydration synthesis?
- 9 What would be the molecular formula for a glucose molecule?
- 10 Where do the sugar-phosphate backbones and nitrogenous bases pair?
Which of the following molecules can be joined together to produce starch?
Starch is a polymer made from sugar monomers. Starch molecules contain many glucose molecules, joined together in long chains with branches.
What molecules form starch?
Starch is a chain of glucose molecules which are bound together, to form a bigger molecule, which is called a polysaccharide. There are two types of polysaccharide in starch: Amylose – a linear chain of glucose. Amylopectin – a highly branched chain of glucose.
What molecules make up starch and glycogen?
Structure. Both starches and glycogen are polymers formed from sugar molecules called glucose. Each independent molecule of glucose has the formula C6H12O, and joining these subunits together in a certain way forms the long chains that make up glycogen and starch. There are two types of starch: amylose and amylopectin.
What macromolecule is produced in protein synthesis?
Various types of RNA are found in living organisms: messenger RNA (mRNA) is involved in the immediate transcription of regions of DNA; transfer RNA (tRNA) is concerned with the incorporation of amino acids into proteins; and structural RNA is found in the ribosomes that form the protein-synthesizing machinery of the …
What polymers make up starch?
Chemical Structure. Starch is comprised principally of two glucose polymers, amylose and amylopectin. Both polymers are made up of d-glucose units in cyclic pyranose form, linked through glycosidic bonds between carbons 1 and 4 of adjacent glucose monomers (Figure 1).
What kind of bonds holds glucose together?
Tiny forces called hydrogen bonds hold the glucose molecules together, and the chains in close proximity. Although each hydrogen bond is very, very weak, when thousands or millions of them form between two cellulose molecules the result is a very stable, very strong complex that has enormous strength.
What is starch cellulose?
Starch is a glucose polymer in which all repeat units are directed in one direction and connected by alpha bonds. Cellulose is a glucose polymer whose units can be rotated around the axis of a backbone of glucose unit polymer chains, and are connected by beta links.
What is structure of cellulose?
Cellulose is a linear polymer consisting of β-d-glucose residues linked together by 1.4-links to form a flattened ribbon structure (Fig. 19.4). The molecular size of polymer molecules can be conveniently described in terms of degree of polymerization (DP), which is an average value of the number of monomer units.
What monosaccharides make up cellulose?
Ernest Z. Only one monosaccharide makes up cellulose, and that is glucose.
What kind of macromolecule is cellulose?
Comparing the Biological Macromolecules
| Macromolecule | Basic Formula, key features | Examples |
|---|---|---|
| Lipids | C:H:O Greater than 2:1 H:O (carboxyl group) | Butter, oil, cholesterol, beeswax |
| Carbohydrates | C:H:O 1:2:1 | Glucose, Fructose, Starch, Glycogen, Cellulose |
| Nucleic Acids | CHONP pentose, nitrogenous base, phosphate | DNA, RNA |
Which molecule is a product of dehydration synthesis?
In dehydration synthesis reactions, a water molecule is formed as a result of generating a covalent bond between two monomeric components in a larger polymer.
Can amylase break glycosidic linkages between glucose monomers?
The enzyme amylase can break glycosidic linkages between glucose monomers only if the monomers are the “a” form. Which of the following could amylase break down?
What would be the molecular formula for a glucose molecule?
) The molecular formula for glucose is C6H12O6. What would be the molecular formula for a molecule made by linking three glucose molecules together by dehydration reactions? 5) The difference between an aldose sugar and a ketose sugar is ________. A) the number of carbon atoms
Where do the sugar-phosphate backbones and nitrogenous bases pair?
The sugar-phosphate backbones run along the outside of the double helix while the nitrogenous bases pair in the middle. The molecules in this diagram are which of the following (choose all that apply)?
What is the structure of DNA Quizlet?
Describe the structure of DNA. DNA consists of a branched chain of DNA nucleotides that is twisted to form a double helix. How is information stored in a molecule of DNA?