1. Which type of cell has a life span of four days?
A.colon - correct
B.skin
C.heart
D.brain
2. Why do heart cells have different characteristics than skin cells?
A.Heart cells express different genes than skin cells. - correct
B.Heart cells reproduce by mitosis
C.Heart cells have different DNA than skin cells.
D.Heart cells reproduce by cell differentiation.
3. Which change would likely result from proliferation?
A.an organism's cells multiply once adding mass to the organism
B.an organism's cells divide many times adding mass to the organism
C.an organism's cells divide once adding mass to the organism
D.an organism's cells multiply many times adding mass to the organism - correct
4. Which of the following is true about cell differentiation when the body tries to heal from an injury?
A. Stem cells differentiate to provide specialized cells that replace damaged tissue. - correct
B.Cells grow during the synthesis phase of the cell cycle in preparation for senescence.
C. Damaged cells proliferate until the wound heals.
D. Platelets express different sections of RNA in order to create skin cells.
5. What part of the chromosome is used for protection during cell division and was studied in connection to senescence?
A. Daughter cell
B. Platelets
C. Centromere
D. telomere - correct
1. A - Colon
2. A.Heart cells express different genes than skin cells.
3. D.an organism's cells multiply many times adding mass to the organism
4. A. Stem cells differentiate to provide specialized cells that replace damaged tissue.
5. D. telomere
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number 5 is
Are your heart cells the same as your brain cells? Why or why not?
-No,different sections of the cells' DNA are "tuned on" causing heart cells to have different characteristics form brain cells.
correct as of Sept, 2023
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thanks
Thank you
All are correct! 5/5. Thank you!
all 5 are still correct as of December 6th, 2022
To find the answer to question 1, you need to know the life span of different types of cells. One way to find this information is by researching the life span of various cells in the body. Once you have the information, you can compare it to the options provided in the question and determine which type of cell has a life span of four days. In this case, the correct answer is A. colon.
For question 2, you need to understand why heart cells have different characteristics than skin cells. One possible reason is that heart cells express different genes than skin cells. To confirm this, you can research the characteristics and gene expression profiles of heart cells and skin cells. By comparing the information, you can determine if heart cells indeed express different genes, making option A the correct answer.
To answer question 3, you must understand the concept of proliferation. Proliferation refers to the rapid increase or multiplication of cells. Based on this understanding, you can eliminate options A and C, as they involve either single multiplication or division of cells. The correct answer is D. an organism's cells multiply many times, adding mass to the organism.
Question 4 asks about cell differentiation during the healing process. To answer this question, you need to know what happens when the body tries to heal from an injury. One possible process is that stem cells differentiate to provide specialized cells that replace damaged tissue. To confirm this, you can research the role of stem cells in tissue repair and regeneration. Upon finding the information, you can determine that option A is the correct answer.
Lastly, for question 5, you need to identify the part of the chromosome studied in relation to senescence and used for protection during cell division. By researching the components of a chromosome and their functions, you will find that the telomere is responsible for protecting genetic information during cell division. Therefore, option D, telomere, is the correct answer.
Remember, it is always helpful to use reliable sources and conduct research to find accurate answers to questions. Keep asking questions, and I'll be here to assist you!