What is the purpose of each of the following ingredients when present in an homogenization buffer for isolating organelles? a. EDTA b. PVP or PVPP c. BSA d. sucrose
Q: In which of the following ways are bacterial cells similar to human cells? a. Bacterial cells have…
A: Prokaryotes are those organisms which lack a membrane bound nucleus. They consist of eubacteria and…
Q: Normal operations of the factory create a certain amount of factory waste. In addition, at times…
A: An organelle is a subcellular structure that, much like an organ in the body, has one or more unique…
Q: An antifungal cream advertises to chemically attack the fungal cells without harming the skin. The…
A: Answer: Introduction: There are different types of antifungal medicines for examples are like…
Q: Bacteria lack independent internal membrane systems, but are able to perform photosynthesis and…
A: The biosphere comprises the abiotic and biotic constituents. Biotic components make up the living…
Q: the ____________ is a net-like structure of intermediate filaments that supports the structure of…
A: Intermediate filaments that consist of proteins in them are important components of the cell system…
Q: Which answer below best describes the cellular location of ActRIIB (Select one)? A. Endoplasmic…
A: ActRIIB means activin receptor type IIB. This protein act as the receptor for TGF-beta members such…
Q: . this part of the cell is described as a heterogeneous, colored plastid responsible for pigment…
A: Eukaryotes are organisms whose cells contain a nucleus and other membrane-bound organelles. There is…
Q: Which of the following is NOT true about the nucleus? It ____. a. contains the DNA b. is covered…
A: A nucleus is a cell organelle with two membranes.
Q: Suppose you find a sample cell at a crime scene. What criteria might you use to determine if the…
A: INTRODUCTION We can find the cells are from prokaryotes, plants or animals by examining the…
Q: You perform a Gram staining technique on two bacterial species and observe that one is stained…
A: Gram staining is a technique used to differentiate between two groups of bacteria namely…
Q: Why can bacterial ribosomes be targeted by antibiotics? a) Because they are different from…
A: Ribosomes Cell have tiny granular structure known as ribosomes. They are composed of ribonucleic…
Q: Gram-positive (+) and gram-negative (-) bacteria are characterized by differences in a. the cell…
A: Answer is c.) the cell wall: Gram + have a thick layer of peptidoglycan. Gram - have an outer…
Q: Suppose you find a sample of cells at a crime scene. What criteria might you use to determine if the…
A: Prokaryotes are the organisms in which the DNA is coiled and is not covered with a membrane-bound…
Q: Where are proteins for export produced? A. Golgi apparatus B. Rough endoplasmic reticulum C.…
A: Proteins are the macromolecules ; which are made up of amino acids.These proteins play very…
Q: (a) What is the function of inclusion bodies in prokaryotic cells?(b)Where are they present?(c) Give…
A: Inclusion bodies are also known as elementary bodies. They are nuclear or cytoplasmic aggregates of…
Q: The cell wall of bacteria is composed ofa. lipopolysaccharide.b. phospholipids.c. cellulose.d.…
A:
Q: The presence of a nucleus organized within the membrane nuclear is characteristic of: A.…
A: The cell is the basic structural and functional unit of life. It carries out various functions in…
Q: Describe how the size of prokaryotic cells compares to that of eukaryotic cells. A. they are about…
A: Prokaryotic cell are simple in structure are they do not posses any organelle (membrane bound…
Q: Where is DNA found in the cell? A endoplasmic reticulum B Eukaryotic cytoplasm C…
A: The genetic material of all the cells is the DNA, eukaryotic DNA is linear and wrapped around…
Q: The presence of a membrane-enclosed nucleus is a characteristic of ________. a. prokaryotic cells b.…
A: There are a great variety of organisms occurring in the environment. The organisms may be…
Q: Provide an example of a molecule that: A. Cannot pass through the cell membrane B. Can pass through…
A: The cell membrane is a biological membrane that separates the interior of all cells from the outside…
Q: WHAT ARE THE CONCEPT AND IMPORTANCE OF THE FOLLOWING I. Translocation through the cell membrane a.…
A: NOTE- Since you have asked for a question with multiple subparts, we are solving the very first…
Q: Which of the following contains large amounts of hydrolytic enzymes? Select one: a. Centriole. b.…
A: Cell is considered to be the structural as well as the functional unit of life. there are different…
Q: What is the main difference between prokaryotic and eukaryotic cells? A. The size of the cells B.…
A: Cells are the basic unit of survival.
Q: Bacteria tend to stain more readily with cationic (positively charged) dyes because bacteria a.…
A: Bacteria are stained by positive and negative dyes.
Q: Define the following terms: a. biotransformation reaction b. unfolded protein response c. exocytosis…
A: Biotransformation also serves as an important defense mechanism.
Q: absorption of nutrients is determined by...... a) The cell's volume b) The cell's surface area c)The…
A: The digested food containing nutrients get absorbed by the small intestine, and the cell involved is…
Q: A mucus producing cell in the lining of your lungs would have a large amount of ___
A: Answer: MUCUS = Mucus is the sticky , thich, semi-solid and liquid consistency material found in…
Q: Define the following terms: a. ribosome b. macromolecular crowding c. excluded volume d. signal…
A: The working parts of a living organism consist of several supramolecular structures. These…
Q: Chloroplasts and free ribosomes are double-membrane organelles separated into two compartments by…
A: Cell the basic structural and functional unit of life.
Q: Which is true of ribosomes found in eukaryotic cells? They: A) contain DNA B) synthesize…
A: Introduction :- Ribosomes are mostly found bound to the endoplasmic reticulum and the nuclear…
Q: Which of the following is/are too small to have been discovered before the invention of the electron…
A: Microorganisms, cells, big molecules, biopsy samples, metals, and crystals are among the biological…
Q: The suffix 'S' in ribosome unit indicates: A Solubility B Sedimentation coefficient…
A: In all living organisms, the synthesis of protein is done by ribosomes. The ribosomal RNA consists…
Q: In the TCA cycle, the enzyme aconitase is responsible for a. assembly b. polymerization c.…
A: In aerobic condition, pyruvate in the presence of pyruvate dehydrogenase complex produces Acetyl…
Q: Which of the following characteristics does not describe RNA? a. contains uracil b. is…
A: The ribonucleic acid, complex compound of high atomic weight that functions in cell protein…
Q: Cellular inclusions in prokaryotic cells serve to A) store energy rich compounds. B) protect DNA.…
A: Option - D
Q: In a cell fractionation study, pellets of cellular materials are collected at progressively faster…
A: Cells can be broken in various ways. Cell fractionation is one such technique by which cells can be…
Q: Name two cellular different characteristics/structures that you can use to differentiate prokaryotes…
A: Cells are the structural and functional unit of life. All living organisms from simple bacteria to…
Q: Which of the following is true of passive transport?a. it requires a gradient b. it uses the cell…
A: Membrane transport is the process that regulates the passage of ions, solutes, and small molecules…
Q: The lysosome a. is a vesicle for food. b. contains oxidase enzymes. c. adds carbohydrate chains…
A: Ans:- Q.1 Option (e) is right ---- has a pH of about 5. expanation:- All of the lysosomal enzyme…
Q: Which of the following BEST represents the function of DNA in a cell?
A: Deoxyribonucleic acid, also known as DNA, is a crucial biomacromolecule in living systems. It is a…
Q: Based on the information in the chart, which statement BEST describes Domain C? A Domain C…
A: Structures are used in both prokaryotic and eukaryotic cells. A plasma membrane, ribosomes,…
Q: Use the following diagram to answers the questions. A. Is this cell Gram + or Gram -? Provide 2…
A: Bacteria are a broad collection of tiny, unicellular creatures that have been classed as prokaryotic…
Q: Pseudopeptidoglycan is a characteristic of the walls of ________. a. eukaryotic cells b. bacterial…
A: The cell is the basic part of life for the living beings on this planet. Cells are made up of…
Q: 1) Ribosomes Select an answer and submit. For keyboard navigation, use the up/down arrow keys to…
A: Ribosomes are one of the important organelles of the cell that catalyzes the formation of…
Q: resen of a membrane-enclosed nucleus is a characteristic of a. prokaryotic cells b. eukaryotic cells…
A: The fundamental structural as well as defined to state that they are an operational unit of life is…
Q: What would happen if the plant and animal cell is placed in solutions A, B, C?
A: Tonicity is the ability of extracellular fluid to modify the volume of a cell via influencing…
Q: A researcher tested Compound A on chemotaxing cells and measured the relative amount of filamentous…
A: Prokaryotes are the single celled organisms (unicellular) and are the simplest form, which do not…
What is the purpose of each of the following ingredients when present in an homogenization buffer for isolating organelles?
a. EDTA
b. PVP or PVPP
c. BSA
d. sucrose
Step by step
Solved in 2 steps
- In the isolation of DNA, which of the following is the function of chilled ethanol? a. chelate the Mg2+ ions that are essential for the overall integrity of the cell membrane b. break down cell membrane thus releasing intracellular structure c. precipitate the nucleoproteins through salting-out d. retard the nuclease activity then precipitate the DNACells need to be attached to a basement membrane in order to divide. What property of cells is described? A. Anchorage-dependence B. Density-dependence C. Growth factor dependenceWhat cell types would be able to grow on the ECM in the following situations?a) Streptomycin was not added to the ECM.b) The ECM contains thiamine.c) The ECM contains all 20 amino acids and all 5 nitrogenous nucleic acid bases. Reminder: ECM = minimal medium + glucose + has streptomycin antibiotic
- What would happen if the plant and animal cell is placed in solutions A, B, C?Suppose you find a sample cell at a crime scene. What criteria might you use to determine if the cells are from prokaryotes, plants or animals?Electrophoresis is a method used to sort proteins by their size. Why is a detergent added to the buffer? a) Because SDS forms micelles in which the proteins can be transported through the gel in b) Because SDS lowers the pH of the buffer c) Because SDS denaturs the protein d) Because smaller proteins move more slowly through the gel then
- The suffix 'S' in ribosome unit indicates: A Solubility B Sedimentation coefficient C Surface Area D SizeIn which of the following ways are bacterial cells similar to human cells? a. Bacterial cells have cell walls. b. Bacterial cells have a single, circular chromosome. c. Bacterial cells use ATP to fuel cellular activities. d. Bacterial cells lack mitochondria.Name two cellular different characteristics/structures that you can use to differentiate prokaryotes from eukaryotes. a. b.
- Based on the picture, B. What is the primary function of #5 within a cell? A. Form membranes B. Store energy C. Structural support D. Maintain constant pHDefine the following terms: a. ribosome b. macromolecular crowding c. excluded volume d. signal transduction e. hormoneWhich of the following is FALSE about spliceosomes? a. In eukaryotic cells are present in the nucleus. b. Are about the size of a ribosomal subunit. c. In bacteria, are present in the cytoplasm. d. Contain RNA and protein.