Organic molecules consist mainly of ______ atoms.
- a. carbon
- b. carbon and oxygen
- c. carbon and hydrogen
- d. carbon and nitrogen
Introduction: The molecules that are majorly composed of carbon and hydrogen are classified by chemists as organic molecules. The basis of life is the organic compounds that make it up. Organic chemistry is the study of these compounds. The methodology of synthesis of these compounds is called as organic synthesis.
Answer to Problem 1SQ
Correct answer: The organic compounds are those that consist majorly of carbon and hydrogen atoms. Hence, the correct answer is option c.
Explanation of Solution
Reason for correct answer:
The living organisms are composed of several molecules. They are called as molecules of life. The molecules of life include carbohydrates, fats, proteins, nucleic acids, and many more. They are made of organic molecules, which mainly consist majorly of carbon and hydrogen atoms. The organic molecules also have oxygen, nitrogen, sulphur, and phosphorus atoms in a minor form. These organic molecules are also found in the non-living things.
Option c. is given as “carbon and hydrogen”.
The organic compounds consist mainly of both carbon and hydrogen atoms that are present in different proportions to form various functional groups.
Hence the correct answer is option c.
Reason for incorrect answer:
Option a. is given as “carbon”.
Though the carbon atoms majorly constitute the organic compounds, chemists define organic compounds as those with both carbon and hydrogen atoms. Hence, option a. is incorrect.
Option b. is given as “carbon and oxygen”.
Certain organic molecules like carboxylic acids, carbonyl functions groups, aldehyde groups, and ketone groups contain both carbon and oxygen atoms; oxygen is present in lesser amount than hydrogen. Hence, option b. is incorrect.
Option d. is given as “carbon and nitrogen”.
Certain organic molecules like amino acids, nucleic acids, phospholipids, amides, amines, nitrile, and imine functional groups. Hence, option d. is incorrect.
Hence the options a., b., and d are incorrect.
Want to see more full solutions like this?
Chapter 3 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Additional Science Textbook Solutions
The Cosmic Perspective (8th Edition)
HUMAN ANATOMY
Campbell Essential Biology (7th Edition)
Genetics: From Genes to Genomes
Biology: Life on Earth with Physiology (11th Edition)
- Molecules that are found in living cells and contain the element___________ are considered organic molecules.a. hydrogenb. carbonc. oxygend. nitrogene. calciumarrow_forwardThe building blocks of nucleic acids are _____. Select one: a. nucleotides b. amino acids c. fatty acids d. monosaccharidesarrow_forwardA___ is two or more atoms joined together A. Cell B. Tissue C. Molecule D. Particlearrow_forward
- When hydrogen is a part of a ________, it has a slight positive charge. a. Ionic bond b. polar covalent bond c. nonpolar covalent bondarrow_forwardThe backbone of all organic molecules is:a. oxygenb. sulfurc. nitrogend. carbone. phosphorusarrow_forwardOrganic molecules consist mainly of atoms.a. carbon c. carbon and hydrogenb. carbon and oxygen d. carbon and nitrogenarrow_forward
- In general, oils generally have _____. Select one: a. a high degree of unsaturated bonds b. long fatty acid chains c. a high water content d. a high degree of saturated bondsarrow_forwardThe image above shows a simple molecule of glucose. Glucose would best be described as? A. Disaccharide B. Monosaccharide C. Polysaccharide D. Proteinarrow_forwardEach carbon atom can bond with as many as-_________ other atom(s). a. one c. three b. two d. fourarrow_forward
- The tertiary structure of many proteins reveals that nonpolar portions are primarily on the ________ of the molecule a. interior b. exteriorarrow_forwardWhich of the following molecules generally possesses a complex shape that allows the molecule to function as tools and machinery that essentially do all the work within a living cell? 20. A. triglycerides B. proteins C. carbohydrate D. A and B are correct.arrow_forwardPhospholipids are important components of __________. a. the plasma membrane of cells b. the ring structure of steroids c. the waxy covering on leaves d. the double bond in hydrocarbon chainsarrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College