Disease sheet Patho Exam 1

Explain the concept map depicted below. Explain how etiological agents/lifestyle/environment can cause tissue necrosis and apoptosis.   pls answer it in text word (not handwritten on paper)

Which of the following will increase frequency of cell-cell interactions, that are also important signal sources within tissues.     decrease in cell volume     decrease in cell density     increase in cell population density     Secretion of hormones     None of these

Cancer cells differ from normal cells in several ways. One of the hallmarks of cancer cells is sustained angiogenesis. evasion of apoptosis O all of these are hallmarks of cancer cells. growth signal autonomy. dedifferentiation.

The surface temperature above tumor tissue is

What occurs in the body with cancer? Q Cells are prevented from undergoing cell division. Foreign bacteria kill cells. New cells are not formed causing aging cells to have to do all work. 14 of 15 O Abnormal cell growth outpaces normal cell growth.

Which 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.

For each statement, indicate whether energy is or is not required. Phagocytosis Proton pump 1. Requires energy Gated channel 2. Does not require energy Diffusion Electrogenic pump > > >

What does "potency" mean in the context of stem cells? The power of cells to influence their surroundings The ability of cells to differentiate into specialized cell types The ability of cells to survive under harsh environmental or culture conditions Both A and B

Plan a campaign to warn students of the dangers of extremely low-calorie diet and to promote healthy eating habits and to maintain a healthy weight.  In your campaign include: why when changing your diet, it's important to know how the cells in your body will react to the introduction of new substances or the removal of other substance. Help them understand how you can incorporate any changes you made into your everyday life What important factor would you like to make the students aware of regrading the use of weight loss pills and please please add referancice that u use

Totipotent Cells are cell which can only generate cells of the same type capable of differentiating into many types of cells 2 capable of differentiating into few 3 types of cells can give rise to essentially all cell 4 types in the body MARKED FOR REVIEW

The of satellite cells in the skeletal muscles can be found     as a dispersed population of stem cells throughout the muscle tissue.     in the blood sinusoid area of the muscle tissue     concentrated in the tendon     in the islets of Smithiton     none of these

Regarding the mechanisms of cancer, which of the following statements is NOT correct? Ovarian cancer is always the result of hypomethylation of tumor suppression genes Unlike normal human cells that can divide between 50-70 times, tumor cells can divide indefinitely Sirtuins are enzymes linked with longevity that increase in activity in response to resveratrol supplementation Many tumors are able to grow their own blood supply by forming new branches from nearby blood vessels

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 apoptosis

In our bodies, the stem cell found in : Bone marrow All sites of body. Small intestine Not stem cell in adult human, its present in embryonic stage only.

Apoptosis occurs

All of them are true about apoptosis except: O Blebs contain cellular orgenelles Cell membrane ruptures and release content Programmed cell death Phagocytic cells remove fragment bodies

Programmed cell death is...(select all that apply) Group of answer choices a mechanism to protect populations of cells against uncontrolled growth always is activated and prevents cancer known as endocytosis known as apoptosis known as cytokinesis

1. Which of the following statements about secetion is true? All secretary vesicles bud offf the Golgi network and fuse with the plasma membrane continously without any regulation, in regulation secretion the secretary vesicles containing secreted materials are performed and position close to the plasma membrane allowing the rapid release of a large amount of cargo in a very short amount of time; the release of Insulin is a form of constitutive secretion; none       3. Which of the following statements is true? The signal sequence is always retained after proteins are imported into the mitochondria matrix; the vast majority of mitochondrial proteins are encoded in the mitochondrial genome; proteins are importedinto thmitochondriae                                                                                                                                                                                                                                                                2.…

give your KEY TAKEAWAYS on the causes of cell injury as well as the major difference between reversible and irreversible injury.

Identify if the statement is True or False. If the statement is false, identify what is incorrect and correct it.  Cellular response to injury depends on nature, duration and severity of injury and Consequences of injury depend on type, state and adaptability of the injured cell. The causes of cellular injury can be a depletion of ATP, mitochondrial Damage, and entry of Calcium into the cell, increase reactive oxygen species (ROS), membrane Damage, DNA damage and Protein misfolding.  Intracellular Ca++ is normally low and is sequestered in mitochondria and endoplasmic reticulum. Increased cytosolic Ca++ activates enzymes such as ATPase, phospholipases, proteases, endonucleases that can lead to cell injury and death.

What advantage do iPS cells have over traditional embryonic stem cells? they can be differentiated into a wider variety of cell types they are easier to differentiate into adult cell types they can be derived from a patient to avoid tissue rejection following transplant they can survive in culture longer all of the above

Which of the following is the best description of cancer cells growing larger than normal unregulated cell growth rapid cell growth controlled cel growth Ne

Na+/K+ ATPase (sodium potassum adenosine triphosphatase) is found in the plasma membrane and catalyzes the exchange of sodium and potassium ions across the membrane. Classify the statements about the transport system as either true or false. Macmillan Learning True Pumps Na+ ions out of the cell. Pumps Na+ ions into the cell. Pumps K+ ions out of the cell. Pumps K+ ions into the cell. Exchanges 3Na+ ions for 2K+ ions. Creates a membrane potential that is negative on the inside. The transport protein becomes adenylated by ATP during the transport cycle. False Exchanges 3K+ ions for 2Na+ ions.

CDK levels through the cell cycle while cyclin levels fluctuate; fluctuate fluctuate; stay the same stay the same; fluctuate stay the same; stay the same

Why do neurons and some other specialized cells divide infrequently?     They have entered into G0.     They no longer have active nuclei.     They no longer produce MPF.     They can no longer degrade cyclins.

Please help asap

IDENTIFY THE TISSUES SHOWN (AND MARKED DETAILS) LJA 2 Name the 4 major types of tissue: 3 1) 2) 3) The space 4) For easy grading, please use 1 of these 4 wherever it says "major type" : (abbreviations OK if you define them) Major type: Major type: Specific type: Specific type: -------------- The cell Fuzzy border 5 4 Major type Specific type: Major type Specific type: Major tvpe: Speci уре: IDENTIFY THE TISSUES SHOWN: 8. Major type : Specific type: Major type :_ Specific type: Major type : Specific type: 11 12 ajor type : pecific type: Major type : Specific type: Major type : Specific type:

24) The effects of Biomaterials on Tissue are listed below , which ones are not among these effects ? Cell Migration Promotes tissue formation Cell attachment Tissue degradation Release of pre-packaged reactive molecules (exocytosis) Accommodates tissue attachment

Radiation, which induces DNA damage, inhibits cancer progression by:     Breaking down Rb     Breaking down cohesin     Activating p53     Phosphorylating Cdk     Breaking down the mitotic spindle

What specific types of cells do chemotherapy medications target to destroy? cells with cancer specific antigens cells with any random mutations actively dividing cells cells that are undergoing apoptosis