Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 2, Problem 2S
A popular theme in science fiction literature has been the idea of silicon-based life-forms in contrast to our carbon-based life. Evaluate the possibility of silicon-based life based on the chemical structure and potential for
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Beyond the usual carbon based life, and proposed life based on silicon, what other compound is interesting in SETI?
Germanium based life
Boron based life
Plasma based life
Ammonia based life
Weak force life
explain how the Avery/Hershey Chase experiments proved that DNA is the genetic material.
Is a “trans-fat” a saturated fat, an unsaturated fat or neither? Explain.
Describe three properties of water, and how these properties play a role in the lives of living organisms.
Can you answer all the parts of the question for this diagram
A:What is Structure I?
B:What is Structure A?
C:What is Structure D?
Chapter 2 Solutions
Biology
Ch. 2 - The property that distinguishes an atom of one...Ch. 2 - If an atom has one valence electronthat is. a...Ch. 2 - An atom with a net positive charge must have more...Ch. 2 - The isotopes carbon-12 and carbon-14 differ in a....Ch. 2 - Which of the following is NOT a property of the...Ch. 2 - Ionic bonds arise from a. shared valence...Ch. 2 - A solution with a high concentration of hydrogen...Ch. 2 - Using the periodic table on page 22, which of the...Ch. 2 - Refer to the element pictured. How many covalent...Ch. 2 - Prob. 3A
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Defend or refute the following statement: The uppertemperature limit to life is unrelated to the stability ofproteins or nucleic acidsarrow_forwardThe percentages of naturally occurring elements making up the human body (see Table 2.1) are similar to the percentages of these elements found in other organisms. How could you account for this similarity among organisms?arrow_forwardHello, could write me a paragraph on the importance of bonds and bonding in organisms. You could link any of these topics: • 3.1.1 Monomers and polymers • 3.1.2 Carbohydrates • 3.1.3 Lipids • 3.1.4.1 General properties of proteins • 3.1.4.2 Many proteins are enzymes • 3.1.5.1 Structure of DNA and RNA • 3.1.5.2 DNA replication • 3.1.6 ATP • 3.1.7 Water – cohesion • 3.2.2 Mitosis • 3.2.3 Transport across cell membranes • 3.2.4 Cell recognition and the immune system • 3.3.3 Digestion and absorption • 3.3.4.1 Mass transport in animals – haemoglobin • 3.3.4.2 Mass transport in plants • 3.4.2 DNA and protein synthesis • 3.4.3 Mutation and meiosis • 3.5.1 Photosynthesis • 3.5.2 Respiration • 3.5.4 Nutrient cycles • 3.6.2.2 Synaptic transmission • 3.6.3 Skeletal muscles • 3.6.4.2 Control of blood glucose concentration • 3.6.4.3 Control of blood water potential • 3.8.1 Mutations • 3.8.2.2 Regulation of transcription and translation • 3.8.2.3 Gene expression and…arrow_forward
- Which of these nanomaterials are not applicable to nanotechnology? Phospholipid (0.9 nm) Phospholipid bilayer (0.9 nm) DNA (2.5 nm) Carbon Nanotube (1 nm) Buckyball (1 nm) Xray wavelength (10 nm) Glucose Molecules (1 nm) Celsium Atom (0.267 NM) Alpha Helix (1.2 nm)arrow_forwardWhich one of the following terms best describes a phospholipid. It consists of а: A. polar head and polar tail B. non-polar head and a polar tail C. polar head and non-polar tail D. non-polar head and a non-polar tailarrow_forwardSeveral emergent properties of water contribute to the suitability of the environment for life. Choose two properties of water and describe how these properties arise from the structure of water molecules. Next choose any organism, and give specific examples of how the properties of water you described contribute to the survival of the given organism.arrow_forward
- Often, complex molecules are described in terms of their atomic masses. But what is more relevant in biology is how they take up space. (For proteins, their shapes are particularly important.) Let's see if we can get an approximate idea of the physical size of a protein molecule by doing various estimations. An important molecule in the internal mechanisms of cells is Actin. This is measured as having a mass of about 42 kDa (= 42,000 Daltons, where 12 Daltons is defined as the mass of a carbon atom). Let's see if we can estimate how big it is using very crude estimates. Of course eventually we will want to know how big it actually is and what its shape is, but getting a scale would help us determine what measurement tools might be appropriate. In order to estimate the size of Actin, we'll first make an estimate of how many atoms it has, then, using the average size of an atom, we'll consider different models of how it might be arranged to get an idea of its size. A. We could look up…arrow_forwardYour brother confidently says that the MOLECULES (not the atoms) in your grandfather's body are older than the MOLECULES in your brother's newborn baby. Do you agree? Explain YOUR CHOICE in Rationale section of this question! O A. Answer is not provided as an option! O B. No, I disagree. OC. Not enough information is given to make a logical conclusion! O D. Yes, I agree.arrow_forwardWhich of the following is a representation of a covalently bonded molecule that shows the relative size and position of atoms in three dimensions? A. Structural model B. Structural formula C. Shell model D. Chemical formulaarrow_forward
- Thalidomide is an example of how important understanding chemistry is for medicine, what is true about thalidomide? a. it is a complex molecule with no application b. it is a widely used wonder drug c. the drug exists as two isomers one is useful for medicine and the other is useful for energy d. the drug exists as two isomers one is useful for medicine and the other interfeees with fetal development e. the drug is no longer made because of the high synthesis costarrow_forwardMany radioactive isotopes are used in medicine for imaging and treatment purposes. The specific isotopes used depends on the particular organ or body system being studied (for example, Xe-133 is used to image lung function and blood flow.) Technetium-99m is a common radioactive isotope using for a variety of medical applications. It is produced from the decay of Molybdenum-99 and has a half-life of 6.01 hours. What are some of the applications of Tc-99m? While harder to access, another radioactive isotope of technetium, Tc-93, has a half-life of 2.73 hours. If it were easier to harvest, would this be a good substitute for Tc-99m? (remember to explain why for full credit) While Tc-99m has a half-life of 6.01 hours, its decay product has a half-life of 213,000 years. While the medical community considers it to be reasonably safe, within the limits of testing, does this make sense considering both chemical and biological principles? What are possible ways that you might deal with or…arrow_forwardCould you write me a paragraph on the importance of bonds and bonding in organisms. Can you use only 1 of these topics: • Monomers and polymers • Carbohydrates • Lipids • General properties of proteins • Many proteins are enzymes • Structure of DNA and RNA • DNA replication • ATP • Water – cohesion • Mitosis • Transport across cell membranes • Cell recognition and the immune system • Digestion and absorption • Mass transport in animals – haemoglobin • Mass transport in plants • DNA and protein synthesis • Mutation and meiosis • Photosynthesis • Nutrient cyclesarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Theory of Spontaneous generation | Abiogenesis and Biogenesis |; Author: subrata das;https://www.youtube.com/watch?v=tcyESFngVPk;License: Standard YouTube License, CC-BY