formation of macromolecules is an energetically favorable reaction formation of
ID: 301668 • Letter: F
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formation of macromolecules is an energetically favorable reaction formation of macromolecules is an energetically favorable reaction formation of macromolecules is an energetically favorable reaction formation of macromolecules is an energetically favorable reaction They are the mest fnate n of lifs which make up b they are the simplest fom of life estia Differ in size, shope, and chemical requiremerds which nefless differs in d gella vary whea viewed from the oudaide, ut they awe fundamnally sinar on the inside 2 Which of the following eholess lts the corvect order of flow of information aeding so the cemndl DNA mRNAProtein HNADNA Protein . Whish of the following best defines evolution? t A certain group of animals that do not accumulate adaptations overtime, making them unftto survive in their environment h. A sertain group of animals accumulate adaptations overtime, making them better suined to thi environment e. A sudden mutation in the genes of an individual, causing them to suddenly become beter suined no the environment d. Nature selects for the worse trait to survive and reproduce to pass on its favorable genes Yeah, I do not know e, 4 Increase in antibiotic resistant bacteria is most likely due to: c. Evolution d. Taxonomy a. Genetic engineering b. Lab creations Which of the following choices concerning enzymes is incorrect? a. 5. They are protein molecules b. They are a type of lipid e. Function as an organic catalyst d. Has a substrate where the active site binds to e, More than one seem to be incorrect 6. Which instrument can I use to see detailed surface of a cell and other structures: Light microscope c. X-ray crystallography d. Scanning electron microscope b. Transmission electron microscope 7. Some scientists believe that the chloroplast and mitochondria were microorganisms that were engulfed by our cells and the cells of plants and they continue to live within these cells today. What theory is this based upon? a. Parasitism theory b. Encumbrance mutualistic theory Which organelle is found in both plants and animals: a. Chloroplast b. Centriole Which organelle is found in both eukaryotic cells and prokaryotic cells: c. Endosymbiotic theory d. Virology theory 8. c. Wall made of cellulosee.Mitochondria d. ATP 9. a. Golgi apparatus b, Nucleolus c. Ribosomes d. plasma membrane 10. Which of the following is a molecule but not a compound? c. d. H202 11. The first law of thermodynamics states thetExplanation / Answer
Q 47) Formation of macromolecules is an energetically favourable reaction, that is coupled with formation of monomer, an energetically favourable reaction.
Answer- Formation of macromolecules is an energetically unfavourable reaction, and is coupled with formation of monomer, an energetically unfavourable reaction.
Explanation-
Energetically favourable reaction is the reaction which releases energy.
Formation of macro molecules is a synthesizing process called anabolic process which requires energy, here many monomers join together to form a polymer or macromolecule like formation of carbohydrates or macromolecules from glucose fructose which are monomers.
Formation of monomer also requires energy that is they are also energetically unfavourable, for example Glucose a monomer is formed by photosynthesis they gain energy from sunlight.
and many monomers join together to form a polymer or macromolecule.
so the given statement would be Formation of macromolecules is an energetically unfavourable reaction that is coupled with formation of monomer , an energetically unfavourable reaction.
Q2) Which of the following choices lists the correct order of flow of information according to the central dogma ?
Answer- A - DNA-> mRNA---> Protein.
Explanation- Central dogma is the flow of genetic information by a two step process of transcription and translation in which information flows from DNA to mRNA than to proteins.
In transcription DNA sequence of a gene is copied to make a RNA, RNA molecule get processed and a mRNA is formed. In translation mRNA is decoded to specify the amino acid sequence of the polypeptide or protein to be formed.
Q3) Which of the following best defines evolution?
Answer- B- A certain group of animals accumulate adaptations overtime, making them better suited to their environment.
Explanation- Evolution is a gradual process in which something changes into a better or more complex form, and natural selection is the driving force behind it, nature selects the organism which most suits the environment and gradually the traits are developed in them.
Q4) Increase in antibiotic resistant bacteria is most likely due to -
Answer- Evolution.
Explanation- Antibiotic resistant in bacteria gradually develops due to evolution by natural selection, when there is change in bacteria it reduces the effect of antibiotics or totally eliminates the effect of antibiotics, which is created to eliminate the bacteria, the bacteria survive and continue to grow causing more harm to the organism.
Q5) Which of the following choices concerning enzymes is incorrect?
Answer:- B- They are a type of lipid.
Explanation:- Enzymes are proteins , they are not lipids. They have an active site where the substrate binds and undergoes chemical reaction, enzymes act as organic catalysts.
Q6) Which instrument can I use to see detailed surface of a cell and other structures?
Answer- D- Scanning electron microscope.
Explanation:- Scanning electron microscope is used to study whole surface of a cell and other structures due to its high depth of focus.
X-ray crystallography is used to study atomic and molecular structure of a crystal. Transmission electron microscope is used to view thin specimens like tissue sections, molecules etc., it is used to see interior of cell in this sections. In light microscope cell structures can be seen, but the magnification power is less in it which is more in electron microscope.
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