Homework Answers
1) Option 'c' is the correct answer.
Bacterial genome usually consists of a single, circular chromosome condensed in the cytoplasm in the region known as nucleoid, while eukaryotes have multiple linear chromosomes inside the nucleus separate from the cytoplasm. The number of chromosome is distinct for each species in eukaryotes.
2) Option 'a' is the correct answer.
The capsule is the outer covering in the bacterial cells that helps it is adhering to the surface and also protects it from harsh environments. In some cases, it also consists of antigens that are responsible for pathogenicity of the bacteria.
3) Option 'd' is the correct answer.
Chloroplasts are one of the type of plastids which are responsible for photosynthesis owing to their capability of carrying chlorophyll. The other types of plastids include amyloplasts which are responsible for storage of starch and chromoplasts which are responsible for colors other than green in plants. Chloroplasts have their own DNA and are capable of replicating on their own. They are double membrane orgenelles similar to mitochondria.
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Bacterial cells typically have — while eukaryotic cells have — Select one: a. One linear chromosome;...
Bacterial cells, such as E. coli, are surrounded by a fluid plasma membrane and enclosed by...
Bacterial cells, such as E. coli, are surrounded by a fluid plasma membrane and enclosed by a rigid cell wall that protects the cell from damage. You will recall that there is no nuclear envelope in prokaryotic cells, but rather a “nucleoid region” with a single chromosome that is continuous (circular), not linear, as in eukaryotes. All of the genes required for basic survival and reproduction are found in the main chromosome. In addition to the main chromosomes, some DNA...
How is compartmentalization achieved in eukaryotic cells? Select one: a. Primarily by membrane-bound structures O b....
How is compartmentalization achieved in eukaryotic cells? Select one: a. Primarily by membrane-bound structures O b. Primarily by endosymbiosis O c. Primarily by cellular structures surrounded by protein O d. Primarily be the cytoskeleton, which divides the cell into different domains for different functions. A mutation to DNA polymerase III that eliminated the 3'-to-5' exonuclease activity would prevent: Select one: O a. removal of the RNA primer. O b.removal of base mismatches. O c. addition of dNTPs to a region...
Bacterial cells Complete the following paragraph to describe the components of bacterial cells. Prokaryotes are surrounded...
Bacterial cells Complete the following paragraph to describe the components of bacterial cells. Prokaryotes are surrounded by a to regulate the entry and exit of materials through the cell, the help maintain cell shape and structure, and the(when present) to aid in attachment and evasion. that contains the glycocalyx to fimbriae cell envelope conjugation pili cyanobacteria cytoplasm cell wall flagella The DNA of a prokaryote is arranged in a single coiled chromosome located in Some prokaryotes carry genes on extrachromosomal...
In human male cells in meiosis, Select one: a. The X and Y chromosome line up...
In human male cells in meiosis, Select one: a. The X and Y chromosome line up independently at the metaphase plate O b. The X and Y chromosomes separate at Anaphase II c. Two X chromosomes separate from a single Y chromosome at Anaphase II O d. The sister chromatids of the X and Y separate at Anaphase 1 e. The X and Y chromosomes separate at Anaphase I
4. Development of organelles Aa Aa 3 Modern eukaryotic cells are very complex and have many...
4. Development of organelles Aa Aa 3 Modern eukaryotic cells are very complex and have many features that allow them to function efficiently. These complexities took a very, very long time to evolve and likely progressed as a series of small improvements that were naturally selected. For example, modern eukaryotic cells have internal membranes surrounding their organelles and the nucleus. This arrangement likely arose when the cellular membranes of some ancient bacterial cells accidentally folded to become internal membranes. Which...
8. While many prokaryotic cells have a single membrane bilayer, all eukaryotic cells have a complex...
8. While many prokaryotic cells have a single membrane bilayer, all eukaryotic cells have a complex system of internal membrane-bound compartments. How might it be advantageous for the cell to have these additional compartments?
which layer of outer membranes exist in all eukaryotic cells? none of these cell wall both...
which layer of outer membranes exist in all eukaryotic cells? none of these cell wall both of these Plasma membrane which of the following is not an organelle of eukaryotic cells? fimbrae cytoskeleton nucleus golgi emerging and reemerging diseases is a challenge facing science? No answer text provided. No answer text provided. true false The smallest unit that is considered to be alive. none of these atoms cell tissues which of the following types of cells have a plasma membrane?...
Question 22 5 pts Which statement does NOT correctly describe the bacterial chromosome? Hint: Binary Fissione...
Question 22 5 pts Which statement does NOT correctly describe the bacterial chromosome? Hint: Binary Fissione video • Textbook chapter 10 section 10.5 There is a single, circular chromosome The DNA is organized with associated histone proteins. There is usually only one starting point of replication The chromosome is attached to the plasma membrane. Genes that are involved in causing uncontrolled cell division are known as Hint: • Uncontrolled Cell Cycle u video • Textbook chapter 10 section 10.4 housekeeping...
Based on your knowledge about eukaryotic evolution, all of these statements about the evolution of mitochondria...
Based on your knowledge about eukaryotic evolution, all of these statements about the evolution of mitochondria are false EXCEPT: Select one: a. Mitochondria contain genetic information in membrane bound organelles. * b. The evolution of mitochondria occured after the evolution of chloroplasts. O c. Mitochondria have fewer genes than bacteria, and have lost many the gene functions that are necessary for independent life. d. Mitochondria contain all the genes to code for the proteins they require to function and are...
24. Of all the evidence that the mitochondria of eukaryotic cells is derived from endosymbiosis which...
24. Of all the evidence that the mitochondria of eukaryotic cells is derived from endosymbiosis which it the most important? Select one: a. Their inner membrane resembles the composition of those found in many bacteria b. They have two membranes c. Single circular chromosome d. Their ribosomes are the 70S form that are found in all bacteria e. Their DNA has sequences unique to bacteria 25. Which of the following pairs is mismatched? Select one: a. 70S and 50S b....
Bacterial cells, such as E. coli, are surrounded by a fluid plasma membrane and enclosed by a rigid cell wall that protects the cell from damage. You will recall that there is no nuclear envelope in prokaryotic cells, but rather a “nucleoid region” with a single chromosome that is continuous (circular), not linear, as in eukaryotes. All of the genes required for basic survival and reproduction are found in the main chromosome. In addition to the main chromosomes, some DNA...
How is compartmentalization achieved in eukaryotic cells? Select one: a. Primarily by membrane-bound structures O b. Primarily by endosymbiosis O c. Primarily by cellular structures surrounded by protein O d. Primarily be the cytoskeleton, which divides the cell into different domains for different functions. A mutation to DNA polymerase III that eliminated the 3'-to-5' exonuclease activity would prevent: Select one: O a. removal of the RNA primer. O b.removal of base mismatches. O c. addition of dNTPs to a region...
Bacterial cells Complete the following paragraph to describe the components of bacterial cells. Prokaryotes are surrounded by a to regulate the entry and exit of materials through the cell, the help maintain cell shape and structure, and the(when present) to aid in attachment and evasion. that contains the glycocalyx to fimbriae cell envelope conjugation pili cyanobacteria cytoplasm cell wall flagella The DNA of a prokaryote is arranged in a single coiled chromosome located in Some prokaryotes carry genes on extrachromosomal...
In human male cells in meiosis, Select one: a. The X and Y chromosome line up independently at the metaphase plate O b. The X and Y chromosomes separate at Anaphase II c. Two X chromosomes separate from a single Y chromosome at Anaphase II O d. The sister chromatids of the X and Y separate at Anaphase 1 e. The X and Y chromosomes separate at Anaphase I
4. Development of organelles Aa Aa 3 Modern eukaryotic cells are very complex and have many features that allow them to function efficiently. These complexities took a very, very long time to evolve and likely progressed as a series of small improvements that were naturally selected. For example, modern eukaryotic cells have internal membranes surrounding their organelles and the nucleus. This arrangement likely arose when the cellular membranes of some ancient bacterial cells accidentally folded to become internal membranes. Which...
Question 22 5 pts Which statement does NOT correctly describe the bacterial chromosome? Hint: Binary Fissione video • Textbook chapter 10 section 10.5 There is a single, circular chromosome The DNA is organized with associated histone proteins. There is usually only one starting point of replication The chromosome is attached to the plasma membrane. Genes that are involved in causing uncontrolled cell division are known as Hint: • Uncontrolled Cell Cycle u video • Textbook chapter 10 section 10.4 housekeeping...
Based on your knowledge about eukaryotic evolution, all of these statements about the evolution of mitochondria are false EXCEPT: Select one: a. Mitochondria contain genetic information in membrane bound organelles. * b. The evolution of mitochondria occured after the evolution of chloroplasts. O c. Mitochondria have fewer genes than bacteria, and have lost many the gene functions that are necessary for independent life. d. Mitochondria contain all the genes to code for the proteins they require to function and are...
24. Of all the evidence that the mitochondria of eukaryotic cells is derived from endosymbiosis which it the most important? Select one: a. Their inner membrane resembles the composition of those found in many bacteria b. They have two membranes c. Single circular chromosome d. Their ribosomes are the 70S form that are found in all bacteria e. Their DNA has sequences unique to bacteria 25. Which of the following pairs is mismatched? Select one: a. 70S and 50S b....
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