Q: when would the concentration of pancreatic amylase in your body be at the highest? when would it be…
A: Digestive system is responsible for the digestion, absorption and assimilation of nutrients.…
Q: s membrane C. How does the diagram inform your answer to the question? D. What is the answer to the…
A: In the given diagram, the cell has molecules of B which represents molecules of oxygen. As the time…
Q: if a yellow chromosomes are inherited from the maternal parent and the red chromosomes from the…
A: In this question it is asked that, what will be the genetic constitution of daughter cell if, a…
Q: Which of the following would most likely promote necrosis?
A: The death of cells or any tissue of body is called as necrosis. Whenever tissue is not getting…
Q: plant: • Normal leaves (M) and tall plant (D) 12% • Normal leaves (M) and normal tomato (O) 33% •…
A: Crossover frequency is the type of frequency that determines the rate at which crossover takes place…
Q: Identify the following in the sample cladogram below: plesiomorphy, symplesiomorphy, synapomorphy,…
A: A phylogenetic study, often known as genealogy, depicts the relationships between multiple species,…
Q: Chromosomal translocations AND mutations in cadherin binding sites can result in cancer. Select one:…
A: Introduction: When a segment of one chromosome separates and joins another chromosome, the process…
Q: What is the correct chromosomal condition at late prophase (prometaphase) of mitosis? _____________…
A: Introduction : The cell cycle is an organised group of steps. DNA replication and cell expansion…
Q: Cellular organization (e.g. movement of organelles) is facilitated by Cells are capable of resisting…
A: Cell biology is the subdivision of biology which comprise cellular structure and its functionality,…
Q: A fox's diploid number of chromosomes is 36. How would the number of chromosomes in the fox's body…
A: The cell is the basic unit of life and it contains the genetic material in the DNA. The DNA is…
Q: Which region is in the figure of the antibody (below) gets bound to an antigen? Why is important? 2-…
A: Antibodies: When any foreign substances enter the body they are eliminated from the body with the…
Q: Once More Overview of the reaction: C6H12O6 + 02 → ___CO2 + H2O + energy and heat In Cytosol: 1.…
A: Introduction : All cells inside an organism undergo cellular respiration in their mitochondria.…
Q: How a kinesin molecule moves along a microtubule.
A: The hollow, cylindrical shape of the microtubules. They have a diameter of around 25 nm, are found…
Q: Question: Is hemophilia autosomal or sex-linked? How do Autosomal you know? Question: Is hemophilia…
A: Hemophilia is a type of blood disorder that leads to impairment of the blood clotting process. As a…
Q: When during sleep does REM occur? A. Stage 1 sleep, during the first sleep cycle only B. Stage 3…
A: Sleep is an important part of our life. For every animal, sleep is essential to regrowth and rebuilt…
Q: Using the morphological data in table 1, fill in the table matrix in table 2 and CREATE a CLADOGRAM…
A: Cladograms could be created using DNA data or by comparing morphological (structural)…
Q: 6. What is the most common clearing agent? What are the advantages and disadvantages of using this…
A: Applying chemistry to the research of biological activities at the molecular and cellular levels is…
Q: A mutation in p21 that destroys its binding site will Select one: a. inhibit transcription of p21 b.…
A: Cyclin dependent kinases (CDKs) bind at the binding site of p21 and this binding leads to inhibition…
Q: Answer the question in the image.
A: According to lab setup A, dissolving of sugar and mechanism is dispersion. Water, a polar solvent,…
Q: Mention 4 products of animal physiological processes for each of the following areas: • Application…
A: a. 1 From blood plasma, Rh factor is used in vaccines as a stabilizer and also used in…
Q: At what percentage can dehydration compromise physical performance?
A: Dehydration It occurs when an individual use or loses more fluid than consuming it. The body does…
Q: Explore the background and historical depth to understand why animals and humans are used in…
A: Animals play an important role in determining the research aspects in the medicines, medical studies…
Q: Compare foregut/hindgut fermentation strategies in herbivorous mammals.
A: Fermentation is an anaerobic process involving the digestion of Substrates in the absence of oxygen,…
Q: what is the phrase under DNA - "cellular life..." ?
A: In an organism, DNA is a very long piece of genetic material composed of nucleotides joined together…
Q: 28) Consider a maple tree throughout the course of the year. A. On the images below, indicate which…
A: Introduction Plans absorbs water through root from the soil and then it moves to the various parts…
Q: How are leafcutter ants affected by interacting with the fungi they farm
A: Leaf-cutter ants are also known as "fungus-growing ants." It is believed that this ant-fungus…
Q: Explain why the infamous letter that Dr. Cornelius Rhoads triggered an investigation against him. He…
A: Ans. Option 5) In a letter published in 1932 and initally written in November 1931 Dr. Rhoads had…
Q: A M LS R d B M LR td \x R S M L Lot . Which of the phylogenetic trees is the most parsimonious? 10.…
A: Parsimony is a trustworthy approach to constructing an evolutionary tree. It includes assembling…
Q: DNA gyrase is a type of Type Il topoisomerase found in bacteria that induces negative supercoiling.…
A: The DNA undergoes replication and make its own copy. During this process the enzyme called helicase…
Q: If a child ingests Pb, which concentration of Pb exceeds the LD50 of 450 mg/kg?
A: Lead exposure can have detrimental effects on children's health. At high levels of lead exposure,…
Q: nes at QRT gene in one pair of wins, And and Becca, at 1 year of age, again when they are 25 years…
A: The sequences in the DNA determine the phenotype of an organism. But not all sequences in a DNA are…
Q: Explain the Pasteur effect on the aerobic culture of yeast on glucose, where the rate of glucose…
A: Yeast, utilises its nutrition as an energy source in anaerobic environments. Because oxidative…
Q: Please, need help with the explanation and diagram. The structure and properties of poly peptides:…
A: The amino acids aid in the function and growth of the body's tissues. Protein deficiency, also known…
Q: In relation to allometric scaling which of the statement(s) is correct? A) The study of how things…
A: Otto Snell described allometry in 1892, D'Arcy Thompson in 1917 in On Growth and Form, and Julian…
Q: Explain how arborscent lycopods and horsetails are to vascular plant evolution what dinosaurs are to…
A: "Evolutionary developmental biology is regarded as a new evolutionary biology norm." It arose from…
Q: In the image attached is a unknown bacteria lab. The gram stain result and growth result is already…
A: Microbiology is a hugely important field in both basic and applied research. New and fascinating…
Q: In the reading titled "That Others May Live," what is(are) the reason(s) why the shortage of organs…
A: The shortage of organ for transplantation for infants is more than for adults because, The infants…
Q: Match each species interaction with the effect that the first species has on the second species. For…
A: Species interact and consequently influence one another. Interactions between species can be direct…
Q: Examine whether the statement "all second messengers are water-soluble and diffuse freely through…
A: Small intracellular signalling molecules known as second messengers are released in reaction to…
Q: Write the main components of type 3 hypersensitivity reaction. Why phagocytic cells cannot…
A: "Hypersensitivity is the immune system's reaction to a foreign chemical that is not normally…
Q: prevalence
A:
Q: provide at least one example where each of these micrscope ( SEM and TEM) would be the method of…
A: The power of electron microscopes has grown as well. They are an exceedingly effective instrument…
Q: How much ATP is produced after the oxidation of the molecule below? Show procedure
A: It breaks down into glycerol and 1 palmitic acid. glycerol forms glucose and after oxidation, it…
Q: Based on the data provided, explain how cellular processes must be altered in stomach cancer cells…
A: In comparison to healthy cells, cancer cells have an active metabolism and need more energy. Cancer…
Q: On the cladogram, circle the node that represents the most recent common ancestor of DINOSAURS and…
A: A cladogram employs lines that diverge and then converge at a clade, a collection of creatures with…
Q: I need follow up on questions 4 d,e,f please thank you
A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous…
Q: Describe an experiment you could perform or evidence you could observe that would prove that DNA is…
A: Introduction: Despite the fact that researchers found the mechanism causing trait inheritance to…
Q: The long distance transport of molecules on microtubules requires Select one: a. proteases b. motor…
A: Introduction: A cell must constantly rearrange the components of its cytoplasm in order to respond…
Q: The term LD 50 refers to the concentration of a drug or chemical that will kill 50% of the…
A: 0.005 ppt, 5000 ppb. When reporting medication concentrations, parts per million (ppm) or parts…
Q: a. An offspring without genetic mutations (i.e. normal vision and homozygous dominant for cystic…
A: According to the Q&A guidelines, we are supposed to answer only three subparts. Please repost…
Structure and Composition of Cell Membrane
Despite differences in structure and function, all living cells in multicellular organisms are surrounded by a cell membrane. Just like the outer layer of the skin separates the body from its environment similarly, the cell membrane, also known as 'plasma membrane,' separates the inner content from its exterior environment.
Cell Membrane
The cell membrane is known by different names like plasma membrane or cytoplasmic membrane, or biological membrane. The term "cell membrane" was first introduced by C. Nageli and C. Cramer in the year 1855. Later on, in 1931, the term "plasmalemma" for cell membrane was given by J. Plowe. The cell membrane separates the cell's internal environment from the extracellular space. This separation allows the protection of cells from their environment.
Prokaryotes vs Eukaryotes
The cell is defined as the basic structural and functional unit of life. The cell membrane bounds it. It is capable of independent existence.
Discuss two-three ways that kinases/phosphatases OR proteasomes ensures proper rates of cell division.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
- Discuss two-three ways that kinases/phosphatases OR proteasomes ensures proper rates of cell division. A- G B I U V C M I Ꭶ C X₂ C x² = 州 순Cell specializations are usually a modification or elaboration of one of the basic cell functions. (True or fa1se?)Artificially induced apoptosis (controlled cellular death) is found to be an effective treat- ment for some forms of cancer. Which of the following describes the most likely mechanism by which apoptosis might be induced? A B с D by causing ribosomes to increase the rate of protein synthesis by triggering the division of mitochondria in the cell to increase ATP production by increasing the expression of membrane-bound glucose protein channels by causing lysosomes to release digestive enzymes into the cytosol
- The retinoblastoma protein (RB) suppresses human cell division by arresting cells in the G₁ phase of the cell cycle and preventing progression to the next phase. It accomplishes this task by binding to another protein, E2F, a transcription factor needed for further progression through the cell cycle. Normal progression through the cell cycle is accomplished when cyclin-dependent kinases (CDKs) phosphorylate RB, preventing its binding to E2F. Many viruses can induce abnormal exit from G, using viral proteins that bind to RB at a motif at the N-terminal called LXCXE. An example is the E7 papilloma protein, which causes the excessive proliferation of cells in warts. The site at which LXCXE proteins bind is called the pocket domain and is highly conserved on RB and related proteins in plants and animals. The configuration of the pocket domain is well established. Mutant experimental RB proteins are available with alterations in the conserved amino acids of the pocket domain. A simple…The retinoblastoma protein (RB) suppresses human cell division by arresting cells in the G₁ phase of the cell cycle and preventing progression to the next phase. It accomplishes this task by binding to another protein, E2F, a transcription factor needed for further progression through the cell cycle. Normal progression through the cell cycle is accomplished when cyclin-dependent kinases (CDKs) phosphorylate RB, preventing its binding to E2F. Many viruses can induce abnormal exit from G, using viral proteins that bind to RB at a motif at the N-terminal called LXCXE. An example is the E7 papilloma protein, which causes the excessive proliferation of cells in warts. The site at which LXCXE proteins bind is called the pocket domain and is highly conserved on RB and related proteins in plants and animals. The configuration of the pocket domain is well established. Mutant experimental RB proteins are available with alterations in the conserved amino acids of the pocket domain. A simple…Many common medications function by interrupting the normal operation of certain signal transduction pathways. Which of the following describes a possible mechanism by which a certain medication may interrupt a signal transduction pathway? A A medication enters the target cell and triggers apoptosis by causing the release of di- gestive enzymes from cell lysosomes. B A medication interacts with the phospholipid bi-layer of the cell membrane and in- creases its permeability. с D A medication binds to membrane-bound glucose proteins and acts as an allosteric in- hibitor that prevents the intake of glucose by the cell. A medication diffuses through the membrane of a target cell and inhibits an enzyme that normally synthesizes a second messenger.
- Upon learning about the mechanism of apoptosis, the question asked was; Is cytochrome c being released from mitochondria or is it being expressed by an induced nuclear gene and being produced in the cytosol. Which one of the following observations would provide the best evidence that it was being released from the mitochondria? Bcl2 blocks release of cytochrome c from mitochondria and also inhibits apoptosis Active Fas receptors trigger release of cytochrome c from mitochondria. Extracellular signals that block apoptosis do not produce cytosolic cytochrome c Caspase inhibitors block release of cytochrome c from the mitochondriaWhich of the following changes to the microtubule binding protein, Tau, commonly occurs in Alzheimerâ s and other neurodegenerative diseases? A Tau is hypo-phosphorylated and does not bind to microtubules to destabilize them. B Tau levels are so low in the cell that they only bind to some microtubules. C Tau is hyper-phosphorylated and does not bind to microtubules to stabilize them. D Microtubules are hyper-phosphorylated and do not bind to Tau.Describe how Ras and p53 can alter the simplified genetic pathway controlling cell division shown below. For each of the two genes, would uncontrolled cell division result from a loss-of-function or a gain-of-function mutation? growth factors - receptors - cyclins - cyclin-dependent kinases - cell division
- A cell begins to undergo apoptosis due to stress. Which of the following are true about this cell? (select all that apply) The cell can exit apoptosis if the stressful factor is removed The cell has high levels of p53. The cell's DNA will inevitably degrade The cell may undergo mitosis before completing apoptosisPredict the effects of the following mutations on the ability of a cell to undergo apoptosis:a. Mutation in Bad such that it cannot be phosphorylated by protein kinase B (PKB)b. Overexpression of Bcl-2c. Mutation in Bax such that it cannot form homodimersOne common characteristic of cancer cells is a loss of function in the apoptotic pathway. Which of the mutations listed above might you expect to find in some cancer cells?Taxol, derived from the Pacific Yew tree, was one of the first effective anti-cancer compounds discovered. It acts by inhibiting microtubule depolymerization. Which of the following is a likely cellular side effect of treatment with Taxol? Increased exocytosis Loss of pseudopod formation in white blood cells Decreased endocytosis Increased cell size