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- "given the numerous processes inside cells that are regulated by changes in Ca+2 concentration, it seems likely that Ca¹²-dependent cell-cell adhesions are also regulated by changes in Ca2 concentration" is true or false.i want the solution of this assingment please. 1- Typical N-terminal signal sequence ( include description, function, and how they work)2- list address codes for different parts of the cell3- Stop transfer sequence ( description, function, how they work)FAK deficient mice form a lot of focal adhesions true or false
- QUESTION 1 Gap junctions are involved in O endocrine none of the other choices O neural paracrine QUESTION 2 Potassium ions enter a cell by active transport, diffusion O diffusion, diffusion active transport, active transport O diffusion, active transport QUESTION 3 O altering transcription signaling. Compared to water-soluble signals, lipid-soluble signals are more likely to produce their effects on the target cell by: activating enzymes at the plasma membrane opening or closing ion channels QUESTION 4 and exit a cell by Opening potassium ion channels in a neuron will lead to the cell interior becoming: less negative, which is hyperpolarization less negative, which is depolarization more negative, which is hyperpolarization O more negative, which is depolarizationCite evidence supporting a long evolutionary history for cell signaling molecules.Please answer fast 1. Receptors sitting in the plasma membrane always have the following domains a.Domain with kinase activity b.Lipid domain c.Transmembrane domain d.Cytoplasmic domain e.External domain 2. Sorting of endocytosed products occurs mainly in a.lysosomes b.trans-Golgi network c.inside the endocytic vesicles d.early endosomes e.late endosomes 3. Cell membranes after invagination form small vesicles and thin long tubules in the cytoplasm. What compartments from the list below usually form membrane tubules? a.trans-Golgi network b.smooth endoplasmic reticulum c.medieval Golgi d.lysosomes e.rough endoplasmic reticulum f.early endosomes g.late endosomes
- lOH Will save this response. Question 9 Which membrane proteins move specific substances across a membrane, typically by forming a channel? 01. enzymes O 2. receptor 3. adhesion 4. recognition 5. transport A Moving to another question will save this response. SONYAnswer both to get a like or don't attempt.Thanks Question 9 Listen Transphosphorylation, the bidirectional recpiprocal phosphorylation of growth factor dimers, results in the phosphorylation of an array of tyrosine residues present in cytoplasmic portions of the growth factor receptor outside the kinase domain. Question 9 options: TRUE FALSE Question 10 Listen For the EGF receptor: Question 10 options: Spontaneous receptor dimerization precedes receptor binding. The EGF ligand serves as a bridge to dimerize receptors. Are overexpressed in many human cancers making them hyper-responsive to low levels of ligand. A and C are both correct. B and C are both correct.5 of 16 What is the timecourse for the cell signalling mechanism evoked by ligand gated ion channel receptors? O Days. Hours. Milliseconds. Seconds. Microseconds.
- liges 3. Tyrosine kinase receptors are pairs of proteins that span the plasma membrane. On the extracellular side of the membrane, one or more sites are present that bind to signaling ligands such as insulin or growth factors. On the intracellular side, the enas of peptide chains on each protein phosphorylate the other member of the pair, providing active docking sites that initiate cellular responses. The signal is switched off by dissociation of the ligand. For each ligand-receptor system, the equilibrium constant, k, controls the distribution of receptor-bound and unbound ligands. In systems with large values of k, a site is likely to be occupied, even at low concentrations of ligand. When k is small, the likelihood of binding is low, even when the concentration of ligand is high. To initiate a new stimulus response cycle for the receptor, the ligand must dissociate. Larger values of k mean that the receptor is more likely to be occupied and thus unavailable to bind another ligand.…cab # . lock fn QUESTION 3 Identify an important difference between the cytoplasm of the axon and that of the axon terminal. Choose the correct option O a. Axon terminals have more microtubules KE →1 O b. The axon has more synaptic vesicles than the axon terminal O c. Ribosomes are present in the axon terminal O d. There are large numbers of mitochondria in the axon terminal esc QUESTION 4 True or False. Pathological changes in axonal microtubule-associated proteins (MAPS) are called tau. This pathological change is implicated in the dementia that accompanies Alzheimer's disease. O True O False QUESTION 5 What is retrograde axoplasmic transport? Click Save and Submit to save and submit. Click Save All Answers to save all answers. Type here to search ! 7 ? Q A @ Z 2 W S # * 3 X E alt 4 $ D O IDI 4 R () C % 5 LL F n T V 6 G hp 4 & 7 B H 00 8 to 144 J N ( ? 9 Two > K M O O < 4 1 Save All Ansv 65°F Cloudy A 2 H ha# 3 You've engineered a mutant cell where the FADD adapter was truncated. The mutant FADD only contains the Death Domain, and lacks the Death Effector Domain. What is the most likely phenotypic outcome for this mutant cell when presented with the Fas ligand? 20 E O The Fas/FasL oligomer is formed, but apoptosis is blocked O The Fas/FasL oligomer is formed, and apoptosis is hyperactivated O The Fas/FasL oligomer is not formed, and apoptosis is blocked O The Fas/FasL oligomer is not formed, but apoptosis is hyperactivated F3 $ 4 DOD 000 R F4 % 5 F5 T BARAT 6 tv @ MacBook Air F6 Y & 7 F7 U * ➤11 8 F8 · 9 F9
