There are close to 200 different cell types in the human body. Why do they look and function differently from one another?O They each express a different set of genesO They each express all the same genes, but in a different order at different timesO They each have slightly different genomesO They all express the same genes, but proteins that aren't needed in a particular cell type are degraded before they can functionQUESTION 10When you exercise, you typically start breathing harder. This is because:O You are switching from aerobic to anaerobic respirationO More oxygen is needed to meet the increased ATP demandO Carbon dioxide stores are quickly depleted during exerciseMuscle cells can only use aerobic respiration

As per our guidelines, we are supposed to answer one question. On starting to exercise the muscles…

QUESTION 10 When you exercise, you typically start breathing harder. This is because: You are switching from aerobic to anaerobic respiration More oxygen is needed to meet the increased ATP demand O Carbon dioxide stores are quickly depleted during exercise O Muscle cells can only use aerobic respiration O O O O

QUESTION 10 When you exercise, you typically start breathing harder. This is because: You are switching from aerobic to anaerobic respiration More oxygen is needed to meet the increased ATP demand O Carbon dioxide stores are quickly depleted during exercise O Muscle cells can only use aerobic respiration O O O O

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter4: Cell Structure

Section: Chapter Questions

Problem 24RQ: Diseased animal cells may produce molecules that activate death cascades to kill the cells in a...

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Many human cancers result when a normal gene mutates and leads to uncontrolled growth (a tumor). Genesthat cause cancer when they mutate are called oncogenes. Chemotherapy is effective against many tumorsbecause it targets rapidly dividing cells and kills them.Unfortunately, chemotherapy has many side effects,such as hair loss or nausea, because it also kills many ofour normal cells that are rapidly dividing, such as thosein the hair follicles or stomach lining.Many scientists and large pharmaceutical companiesare excited about the prospects of exploiting theRNAi pathway to selectively inhibit oncogenes in lifethreatening tumors. Explain in very general terms howgene-silencing therapy might work to treat cancer andwhy this type of therapy would have fewer side effectsthan chemotherapy
Chloroplasts and mitochondria require protein import because Select one: O a. these organelles have a genome O b. these organelles don't have a genome O c. these organelles have ribosomes, but can't make proteins Od. these organelles don't have ribosome's most of the proteins required by these organelles are encoded by genes in the nucleus e. due Dec 8 at 5pm Jump to... O Next p-
Ultraviolet light may cause DNA damage. Any change to DNA is known as a "mutation". How might such damage affect Synthesis? the cell won't be able to copy its DNA the cell will not be able to go through G2 without going through S first the cell will copy the mutated DNA and pass it onto the newly created cells the cell will enter G0
A cell picks up mutations that allow it to move past the G1 and G2 checkpoints even if its growth factor is not present, These mutations a tightly to other cells and the extracellular matrix. As a result, this cell would .. O die O form a benign tumor form a malignant tumor that metasticizes O form a mass of normal tissue
All yhe cell in the human body has the same genome but have differences in their structure and function performed . what could be the reason ?
What is the normal function of tumor suppressor genes? O prevent cells from going through mitosis O promote cells to grow out of control prevent cells trom growing out of control O stop the cells cycle
.........has highest potential to contribute to the formation of an organism, multipotent stem cells totipotent stem cells pluripotent stem cell unipotent cell
Which Is not one of the ways that a proto-oncogene can become converted into an oncogene? O Introduction of a mutation O Mutating a tumor suppressor gene simultaneously O Relocation to an area of DNA that has more active gene expression O An increase in copy number
Cancer is a group of many different diseases that all are caused by... Cells unable to exit the GO stage of the cell cycle O Inability to process energy O Loss of protein function O Uncontrolled cell division
of my celle chose are wels smaller than normal. According to Model 1, what part(e) of the cell cycle is (ere) ou likely being affected? Some cancerus me 7. In Model 1, if the length of the arrow represents time, then for those cancerous cells, what hap pens to the time that is necessary for the cell cycle? What implication might this have for doctors who are treating cancer patients? Why? Living things must grow and develop. At times they suffer injuries or damage, or cells simply wear out. New cells must be formed for the organism to survive. What process must occur to make a new, properly- functioning cell? Model 1 - Mitosis as Part of the Cell Cycle Prophase Metaphase Anaphase Mitosis How do living things grow and repair themselves! Replicated chromosome (2 sister chromatids) 0000 * Centriole Spindle fibers Nuclear membrane Telophase 1. Refer to Model 1. List the four phases in the mitosis process. 2. Where is mitosis in the cell cycle? Before 3. What three phases of the cell cycle…
A change in what type of cell is most likely to cause a mutation that can be inherited? O brain gamete O heart O skin
Which of the following is a constant source of adult stem cells in a mammal? a. bone marrow b. pancreas c. basal lamina d. heart muscle e. kidney