Nucleotides play a variety of roles in the cell. Give an example of a nucleotide that acts in each of the following roles or processes.a. Second messengerb. Phosphoryl-group transferc. Activation of carbohydratesd. Activation of acetyl groupse. Transfer of electronsf. DNA sequencingg. Chemotherapyh. Allosteric effector

Q: Compare and contrast spliceosomes and ribosomes. Match each description to the correct structure.…

A: Spliceosomes and ribosomes are fundamental constituents of the cellular machinery, each serving…

Q: 1d. The csRH MRNA and protein are represented in the diagram below. MRNA 5' AUG 3' ribosome protein…

A: Proteins are nitrogenous organic compounds of high molecular weight which play a vital or prime role…

Q: Which one of the following is NOT true about ECM? O ECM is composed of an interlocking mesh of…

A: The statement that is not true about ECM is option C. Proteoglycan complex has a unique bottle…

Q: binding? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select…

A: ER is nothing but estrogen receptor.  Estrogen is a female sex hormone .

Q: Which describes the enzymatic activity/biochemical function of dynamin? Answers: bind to and…

A: A protein called dynamin is necessary for both clathrin-mediated endocytosis and synaptic vesicle…

Q: A protein that is regulated by the binding and hydrolysis of GTP will normally be most active when_…

A:

Q: Protein synthesis is energetically expensive. Consider the hydrolysis of ATP into AMP as equivalent…

A: Translation or protein synthesis is the process in which ribosomes in the cytoplasm or endoplasmic…

Q: Check the box under each molecule for which the statement in the first column is true. statement It…

A: Two types of nucleic acids are found in all living cells: DNA and RNA. RNA is a single-stranded…

Q: Retroviruses such as HIV, Herpesviruses, and Hepatitis B can be effectively inhibited by _____. Mark…

A: Nucleoside analogs such as acyclovir are antiviral drugs that can effectively inhibit the…

Q: certain molecule will not dissolve in water and has a structure consisting of glycerol covalently…

A: Given: A certain molecule will not dissolve in water. It has a structure consisting of glycerol…

Q: A segment of cell's collection of biochemical pathways is shown below.  P is a product of one series…

A: Introduction :- A biochemical pathway is a series of reactions involved a  single molecule (…

Q: How does the Cas9 endonuclease bind to specific sequences of DNA in order to make cuts?   A.  It…

A: Cas9 is a 160-kilodalton protein that plays a key part in certain bacteria's immunological defence…

Q: embrane synthesis in the cell requires the selective retention of certain types of lipids on one…

A: Cell membrane is composed of phospholipid bilayer along with cetain proteins. Some of these traverse…

Q: Think about the type of reaction that is catalyzed by chymotrypsin. Which single mutation would be…

A: "Chymotrypsin" is a proteolytic enzyme that belongs to the family of a serine protease. It is used…

Q: Mutations are when the genetic information of an organism changes, which may result in a change in…

A: A mutation is an event that alters the nucleotide sequence of a genome. A particular mutation that…

Q: Check the box under each molecule for which the statement in the first column is true. statement It…

A: The majority of biological processes require ribonucleic acid (RNA), a polymeric molecule that…

Q: Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Terms…

A: Nucleotide metabolism is the set of biochemical reactions that involve the synthesis and breakdown…

Q: Match the post-translational protein modification to its function.   Creates new binding sites by…

A: Post translation modification of proteins are modification  reactions,which involves the addition of…

Q: Which of the following is/are not found in DNA? a. adenineb. uracilc. cytosined. deoxyribosee. both…

A: Nucleic acids are the polynucleotides which are held together by phosphate backbone. Generally, it…

Q: Which of the following molecules is used to transfer the genetic code from the nucleus to the…

A: Proteins are a type of macromolecules that are critical for different varieties of roles in cellular…

Q: Lab 7: Protein Synthesis B. The DNA code for the A chain of insulin Below is the DNA base sequence…

A: Introduction  The process through which a gene's information is used to produce either RNA molecules…

Q: The hydrolysis of nucleoside triphosphates A. is required for them to act as regulatory molecules.…

A: Hydrolysis of Nucleoside Triphosphate involves cleaving of beta- gamma Phospho diester bond in the…

Q: True or false for these statements: a. ubiquitin molecule signals that a protein is ready to be…

A: Proteosome  is barrel saved complex structure, contain high amount of  structure that is responsible…

Q: Which of the following is the odd one out? Kinases Oxidoreductases Isomerases Lyases Translocases

A: Enzymes are proteins that help speed up metabolism, or chemical reactions in our body. Some…

Q: e (x) if the following statements about synthesis of proteins containing an ER sequence are True or…

A: Signal sequences are present on the N terminal of most of the secretory proteins which are destined…

Q: Each of the following statements about protein synthesis is false.Correct each to make a true…

A: Nucleotides are the monomers of nucleic acids, DNA and RNA. A nucleotide is composed of a…

Q: Imagine that you are working in a pharmaceutical lab testing the effects of novel compounds on…

A: Microtubules are microscopic hollow tubes made of alpha and beta tubulin that forms the part of cell…

Q: Discuss how mutations impact protein function. Namely hypothesis the affect these particular…

A: Mutations, variations in a gene's DNA sequence, occur in nature spontaneously. Since alleles are…

Q: Select the true statements regarding the control of proteins in the cell.     Sequestering of…

A: While several intracellular proteins are synthesised in the cytoplasm and membrane-bound or secreted…

Q: Determine the effect of the following mutations on the DNA sequence. In each case, the mutation is…

A: Proteins are important for the normal functioning of the human body. Proteins are made of amino…

Q: 3. Suggest a role for ActA in addition to Arp2/3 complex mediated actin polymerization. Extend the…

A: ActA promotes directional movement and cellular motility for the bacteria Listeria monocytogenes in…

Q: The function of proteins is limited to one or two tasks. Proteins play multiple roles in living…

A: Signalling protein - involved on cellular communication  Structural protein - proteim that…

Q: What are some of the interactions made between ATP and the kinase? Describe bonds that the protein…

A: Kinase is an enzyme that help in transfer of phosphate group. Kinase is a large group of enzyme that…

Q: Within the cell, some organic molecules can lower the activation energy required for a chemical…

A: Cell is the smallest structural and functional unit of life. It is simple machinery that houses all…

Q: Sketch the arrow pushing mechanism for the acid base catalyzed formation of phospho-serine from…

A: Protein Kinase A catalyses the transfer of the gamma phosphate group from ATP to the target…

Q: Which statement about N-linked glycosylation is correct?      N-linked oligosaccharides are…

A: There are two types of glycosylation of protein – N Linked and O Linked In N-Linked glycosylation,…

Q: Imagine you have a new drug and you believe it activates a particular pathway.  You want to prove…

A: Introduction :- Drugs are the chemical compounds which acts as the signal molecules for the cells ,…

Q: Which of the following is true of nuclear regulatory effects, as compared to cytosolic regulatory…

A: The cytoplasm contains the nucleus of a cell, but it is not the cytoplasm. A cell's nucleus and…

Q: The primary function of chaperones is to ... Select an answer and submit. For keyboard navigation,…

A: Chaperones are the proteins that facilitate the proper folding of the proteins. These proteins are…

Q: S-adenosylmethionine is an activated carrier molecule that transfers which of the following groups?…

A: Activated carrier molecules are the molecules which breakdown into two molecules to release the…

Q: What does RNAi do? O a. O b. O C. It binds to DNA double helix and cleaves DNA. It inhibits…

A: RNAi  or RNA interference is an highly conserved process. These are double stranded RNA molecules…

Q: Endothelial cells lining blood vessels can produce large amounts of nitric oxide (NO). The NO…

A: NO acts as a potent vasodilator in smooth muscle cells. It is synthesized  and released by the…

Q: Mark the following properties as belonging to either DNA or RNA. a. Contains the nucleotides A, G,…

A: The molecule that stores information and delivers it to the next generation from the parental…

Q: Which of the following residues cannot be phosphorylated by a protein kinase? Ser His Thr Tyr Glu

A: Protein kinases are the enzymes that modify proteins by adding phosphate groups. This is called…

Q: The only protein bound to the labeled hormone is identified in the new clear fraction. Hormone X is…

A: Hormones are the chemical compounds which are secreted from the respective endocrine glands. These…

Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.