Homework Answers
a) Mitochondria, also known as "Powerhouse" of the cell are responsible for making ATP in a cell. Mitochondria are responsible for making ATP by means of substrate level phosphorylation in kreb's cycle and oxidative phosphorylation by means of Electron transport system.
b) Lysosomes, also known as "Suicidal bags" of the cell are responsible for breaking down old organelles and proteins. Lysosomes contain hydrolytic enzymes that work at a slightly acidic pH of about 5. These enzymes are responsible for breakdown of complex molecules such as carbohydrates, lipids and proteins into simpler monomers.
c) Ribosomal RNA are synthesized in nucleolus which appears as a dense area within the nucleus and contains the genes that encode rRNA.
d) Post-translational modification of proteins after they are synthesized occur in Endoplasmic reticulum and cisternae of Golgi apparatus. Post-translational modification, such as glycosylation and covalent modification, can take place in the cisternae of the rough endoplasmic reticulum and the Golgi body.
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Which part of the cell would be responsible for a. Making ATP? b. Breaking down old...
39. Signal transduction pathways that require the synthesis of new considered fast pathways proteins are generally...
39. Signal transduction pathways that require the synthesis of new considered fast pathways proteins are generally A. True B. False 40. A synthesized protein with the following configuration will have its N-terminus and C-terminus in which configuration? Signal- protein -stop- protein A. N-terminus ER, C-terminus->Cytoplasm B. N-terminus- Cytoplasm, C-terminus- ER C. N-terminus- ER, C-terminus ER D. N-terminus Cytoplasm, C-terminus Cytoplasm 41. A scientist has just designed a new drug to treat cancer. She realises that it takes onl She correctly...
Match the functions listed on the left to the subcellular organelles responsible for those functions listed...
Match the functions listed on the left to the subcellular organelles responsible for those functions listed on the right. Question 6 options: 12345678910 sub-cellular organellse actually responsible for the packaging of cellular proteins that must be contained within membrane-bound vesicle. Proteins 'packaged' by these organelles would include hydrolytic digestive enzymes that are used within the cell but must be sequestered away from other parts of the cell so they don't digest the cell itself, or enzymes like catalases and dismutases...
Let’s say that enzyme X is the catalyst responsible for breaking starch down to individual glucose...
Let’s say that enzyme X is the catalyst responsible for breaking starch down to individual glucose molecules. Which of the following things can happen to the starch and enzyme system if you raise the temperature? Enzyme X catalyzed Starch -------------------------------> many glucose molecules a) The rate of the reaction of starch going to glucose will increase. b) Nothing should happen since a catalyst does not affect the equilibrium. c) The enzyme could stop working effectively because the folded form would...
a-F below list the effects on DNA replication that would be expected in a cell if...
a-F below list the effects on DNA replication that would be
expected in a cell if the gene for one of the following proteins
(i-vi) is mutated and nonfunctional. Write the roman numeral in the
space provided, which corresponds to the expected outcome if that
protein was nonfunctional during attempted DNA replication.
v. DNA ligase vi. DNA sliding clamp A) Primers will be laid down at the origin, but no DNA replication can take place to extend those primers replication...
(2). Consider that mitochondria and chloroplasts were once free-living prokaryotes. If you isolated these organelles from...
(2). Consider that mitochondria and chloroplasts were once free-living prokaryotes. If you isolated these organelles from a plant, which of the following structures would you expect to find? Choose all of the correct answers. (1 point) (a) plasma membrane (b) ribosomes (c) circular DNA (d) linear chromosomes (e) ribosomal RNA (f) proteins (g) nucleus
2. How is ATP used in most cell processes? a. It binds to a substrate and...
2. How is ATP used in most cell processes? a. It binds to a substrate and provides energy when the phosphate group is released. b. indirectly, by providing electrons to an acceptor c. Hydrolysis of ATP is coupled to an endergonic reaction. d. It increases the efficiency of some key enzymes. e. none of the above 2. How is ATP used in most cell processes? a. It binds to a substrate and provides energy when the phosphate group is released....
In transcripts from which of the following genes would you not expect to find a ribosome...
In transcripts from which of the following genes would you not expect to find a ribosome binding sites in the 5' region? A. 16S ribosomal RNA genes B. ATP synthase subunit genes C. Proline synthesis genes D. Antibiotic resistance genes E. None of them
34. Which of the following membrane-enclosed organelles is the site of synthesis of membrane proteins and secretory proteins?
34. Which of the following membrane-enclosed organelles is the site of synthesis of membrane proteins and secretory proteins? a) rough endoplasmic reticulum b) smooth endoplasmic reticulum c) nucleus d) centrosome e) Golgi complex 35. Which of the following membrane-enclosed organelles modifies, s destined for other regions of the cell? sorts, and packages proteins a) endoplasmic reticulum b) Golgi complex c) peroxisomes d) nucleus e) proteasome 36. Which of the following membrane-enclosed organelles contains several oxidases that are involved in oxidation of fatty acids and...
30. Which of the following has the highest energy potential for the cell? ATP b. oxygen...
30. Which of the following has the highest energy potential for the cell? ATP b. oxygen c. carbon dioxide d. NADH+H glucose a. е. 31. Some bacteria can cause diarrhea due to secretion of water from digestive tract cells. Based on this information, which of the following is making the digestive tract cells secrete water? a. cells lining the digestive tract secreting salt making the contents of the tract hypotonic b. cells lining the digestive tract importing salt making the...
Only answers please don’t show work 33) Viral DNA incorporated into host cell DNA is known...
Only answers please don’t show work
33) Viral DNA incorporated into host cell DNA is known as a/an A) phage. B) envelope C) capsid. 33) 34) How is transformation in bacteria most A) the creation of a strand of RNA from DNA molecule B) the type of semiconservative by DNA C) the infection of cells by a phage DNA molecule D) the e of a strand of DNA from an RNA molecule E) assimilation of external DNA into a cell...
39. Signal transduction pathways that require the synthesis of new considered fast pathways proteins are generally A. True B. False 40. A synthesized protein with the following configuration will have its N-terminus and C-terminus in which configuration? Signal- protein -stop- protein A. N-terminus ER, C-terminus->Cytoplasm B. N-terminus- Cytoplasm, C-terminus- ER C. N-terminus- ER, C-terminus ER D. N-terminus Cytoplasm, C-terminus Cytoplasm 41. A scientist has just designed a new drug to treat cancer. She realises that it takes onl She correctly...
a-F below list the effects on DNA replication that would be
expected in a cell if the gene for one of the following proteins
(i-vi) is mutated and nonfunctional. Write the roman numeral in the
space provided, which corresponds to the expected outcome if that
protein was nonfunctional during attempted DNA replication.
v. DNA ligase vi. DNA sliding clamp A) Primers will be laid down at the origin, but no DNA replication can take place to extend those primers replication...
(2). Consider that mitochondria and chloroplasts were once free-living prokaryotes. If you isolated these organelles from a plant, which of the following structures would you expect to find? Choose all of the correct answers. (1 point) (a) plasma membrane (b) ribosomes (c) circular DNA (d) linear chromosomes (e) ribosomal RNA (f) proteins (g) nucleus
30. Which of the following has the highest energy potential for the cell? ATP b. oxygen c. carbon dioxide d. NADH+H glucose a. е. 31. Some bacteria can cause diarrhea due to secretion of water from digestive tract cells. Based on this information, which of the following is making the digestive tract cells secrete water? a. cells lining the digestive tract secreting salt making the contents of the tract hypotonic b. cells lining the digestive tract importing salt making the...
Only answers please don’t show work
33) Viral DNA incorporated into host cell DNA is known as a/an A) phage. B) envelope C) capsid. 33) 34) How is transformation in bacteria most A) the creation of a strand of RNA from DNA molecule B) the type of semiconservative by DNA C) the infection of cells by a phage DNA molecule D) the e of a strand of DNA from an RNA molecule E) assimilation of external DNA into a cell...
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