Although terminally differentiated cells do not divide, the nuclei in these cells are still that site of what important function? Carbohydrate synthesis DNA synthesis mRNA synthesis protein synthesis

9,778 results

  1. Health

    The three lines of defense your body has against disease include all except? A. physical and chemical defenses B. inflammation C. immune system D. scarring True or false B cells and H cells are two important cells in the immune system that help fight

  2. Science

    How are leaf cells and root cells different? A. Leaf cells have nuclei, but root cells do not. B. Leaf cells have chloroplasts, but root cells do not. C. Leaf cells can reproduce, but root cells cannot. D. Leaf cells can absorb nutrients from the air, but

  3. Science

    Which cells carry nutrients from food to the rest of the cells in the body?(1 point) A blood cells B stomach cells C nerve cells D muscle cells

  5. science

    How do actively dividing cells look different from cells that divide less often? thanks

  6. Biology

    1. In which phase do cells rest?- Interphase. 2. Gametes (sex cells) are formed during a process called?- Meiosis. 3. In what phase of mitosis do chromosomes split into sister chromatids?- Anaphase. 4. Which type of stem cell is able to differentiate into

  7. science

    Cancers are groups of cells that divide rapidly and uncontrollably. Thus cancer cells Select one: a. are stuck at the metaphase plate. b. never enter the cell cycle. c. have a relatively short G1 phase and ignore the G1 and G2 checkpoints. d. are always in

  8. Science

    How many cell divisions would it take to produce at least 1,000 cells from one cell? (When one cell splits in half during cell division, the result is two new cells. Each of those cells can divide into two more and so on.) Answer (256?)

  10. biology

    Mitosis in Complex Organisms Quick Check What happens during cytokinesis? The cytoplasm falls apart. The cytoplasm divides. The cytoplasm changes color. The cytoplasm becomes solid. Answer B- The cytoplasm divides. The process of differentiation is a

  11. Biology

    It is the unit 7 lesson 3 inputs and outputs of mitosis quick check Skin cells (1 point ) have terminally differentiated become quiescent quickly. become senescent quickly. continually replicate.

  12. biology

    Which of the following is not a principle of cell theory? a. cells are the basic units of life. b. All living things are made of cells c. Very few cells are able to reproduce*** d. all cells are produced from existing cells.

  13. Biology

    Can someone please check my answers? 1. Skin cells - become senescent quickly. have terminally differentiated. become quiescent quickly. continually replicate. *** 2. Which cell type undergoes terminal differentiation? stem cells heart cells*** epithelial

  15. Biology

    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

  16. Science

    Which of the following is not part of the cell theory? Cells are the building blocks of life. All living things are made up of cells. All cells are created from other cells through cell division. (MY ANSWER) The nucleus is the control center of the cell.

  17. Biology

    Which of the following statements is true? Since all cells carry out cellular repiration, they contain mitochondria. A cell cannot be subdivided into smaller units that maintain the living state. Plant cells contain chloroplasts and no mitochondria while

  18. Science

    Some herbicides, such as 2, 4-D are believed to make plant cells divide more rapidly than normal. Why would this kill plants? Why might this be dangerous to humans if it had the same effect on human cells?

  20. Science

    Plllzzz Help, Mitosis and Meiosis quiz 1. Skin Cells? a)continually replicate. b)become quiescent quickly c)become senescent quickly. d)have terminally differentiated. 2. Which cell type undergoes terminal differentiation? a)epithelial cells b)stem cells

  21. Science

    Which cells contain chloroplasts?(1 point) (1) cells in animal brains (2) cells in plant roots and stems (3) cells in animal muscles (D) cells in plant leaves i really need help with this fast. anybody know the answer?

  22. science

    1.Plant cells can use energy from the sun to make food. Animal cells cannot. Which organelle is responsible for this difference between plant and animal cells?(1 point) chloroplast** cell wall plasma membrane central vacuole 2.Which statement about plasma

  23. health

    2. ________ in the pancreatic islets secrete the hormone insulin in response to a high concentration of glucose in the blood. A. Beta cells B. Alpha cells C. Gamma cells D. Sigma cells i put b but it said it was wrong

  25. ethic and social responsibility

    Pluripotent stem cells are__________________ (Points : 1) those cells that have the potential to be used for multiple types of tissue. those cells that have potential to be used only for one type of tissue. those cells that are generally taken from adults.

  26. biology

    What is the term for cells used for reproduction that contain the haploid number of chromosomes? parent cells somatic cells zygotes gametes D

  27. Check please science

    Cells are to tissues as organs are to 1 ORGAN SYSTEM 2 CELLS 3 GENES 4 ORGANELLES IS THE ANSWER 1 ORGAN SYSTEM Which of statements about cells is not true? 1. One or more cells make up all living organisms 2 cells carry on the basic life functions of

  28. biology

    How does mitosis in plant cells differ from that in animal cells? A. Animal cells lack a cell plate. B. Plant cells lack centrioles. C. Plant cells lack spindle fibers. D. Animal cells lack cytokinesis. I chose b but I got it wrong please help....

  30. science

    Which of the following correctly describes connective tissue? made of electrically charged cells that send messages made of cells capable of contraction made of cells that are separated by a nonliving matrix made of sheets of cells that are tightly joined

  31. mathematics

    If you start a biology experiment with5000000 cells and 25% of the cells are dying every minute, how long with it be before there are fewer than 1000 cells?

  32. science/math

    One multicellular organism is a cube. Each of its sides is 3cm long. Each of its cells is 1cm to the third power.How many cells does it have? If each side doubles in length,how many cells will it then have?

  33. science

    The image below shows two types of plant cells under a microscope. Which statement explains the difference in chloroplasts between the two types of plant cells? A. The leaf cells have larger chloroplasts because leaf cells need more support and a stronger

  35. biology

    Which is true about eukaryotes? Their cells are generally smaller than those of prokaryotes. Their cells have plasmids. Their cells have membrane-bound organelles. Their cells do not have any DNA.

  36. bio

    Alternation of generations is defined as the switching back and forth between the production of: a. cells by mitosis and meiosis b. asexual and sexual reproductive cells c. gametophytes and saprophytes d. diploid and haploid cells MY ANSWER "A"

  37. biology

    All of the cells are in the very early stages of embryonic development and have not begun to differentiate into specialized types of cells. What type of cells would these be? A) gametes B) stem cells C) somatic cells D) epidermal cells

  38. human anatomy and physiology

    What is the difference between cartilage and bone? Cartilage contains cells that can continue to divide and grow, while bone does not. Bone contains significant mineral deposits between its cells, while cartilage does not. Cartilage is found only in the

  40. biology

    7)When a body cell divides through the process of mitosis, the chromosomes in the daughter cells * 10 points are formed when chromosomes from the parent cell cross over. are identical to the chromosomes of the parent cell. represent only the healthiest

  41. Biology

    name three ways somatic cells are different from gamete cells. 1. Gametes are sex cells and are always haploid 2. Somatic cells are non sex cells 3. ?

  42. Biology*STUCK*

    A group of students was asked to list some of the similarities and differences between prokaryotic cells and eukaryotic cells. They created the table shown above. The students made a mistake in creating their table. Which statement best describes their

  43. Science A&P

    So I had this question on my TEAS exam: Which one is closest to cytotoxic t cells? a. b cells, b. natural killer lymphocytes c. dendritic d. x (I forgot the last choice but it might have been helper T cells). I was really confused and can't stop thinking

  45. algebra

    A rare bacterial culture is being grown in a lab. As the days progress, the cells multiply and grow. After 1 day, there is only 1 cell. After 2 days, there are 9 cells. After 3 days, there are 20 cells. After 4 days, there are 34 cells. Which recursive

  46. Microsoft exel

    4. You're working in a table that has three columns and five rows. Since the first row will be a header row, you want it to span all three columns. What formatting feature should you use? A. Connect cells B. Autofit cells C. Combine cells D. Merge cells

  47. Biology

    Plants have cells that contain chloroplasts. Why must their cells contain mitochondria as well? Chloroplasts are the sites of photosynthesis. Mitochrodria is the site of energy synthesis.

  48. biology A

    Some differentiated cells become senescent almost immediately, leaving the cell cycle and undergoing terminal differentiation. Other cells have a high need to proliferate in order to grow and repair the organ or tissue, so they do not enter senescence for

  50. bio

    Which is true about eukaryotes? Their cells do not have any DNA. Their cells have plasmids. Their cells are generally smaller than those of prokaryotes. Their cells have membrane-bound organelles.

  51. science

    which of the following is not part of cell theory? A. cells are the building blocks of life B. all living things are made up of cells C. all cells are created from other cells though cell division

  52. science

    why would Hooke's discovery have been impossible without the invention of the microscope? A. Because all living things are made up of cells. B. Because cells are too small to see without a microscope C. Because cells are the building blocks of life D.

  53. biology

    Nondisjunction can result in __________. the number of cells produced being more than four cells in which crossing-over did not occur mitosis occurring instead of meiosis cells with abnormal numbers of chromosomes

  55. Science Thinking Works

    Plant and animal cells are different because A: plant cells do not have a nucleus or mitochondria B: animal cells do not have DNA or ribosomes C: plant cells do not have a cell membrane D: animal cells do not have a cell wall or chloroplasts I think the

  56. Biology

    I don't know any info an the first semester and midterms are tomorrow please help ( Populations, Communities, and Ecosystems Chemistry of Living Things History of Life on Earth: The First Simple Cells History of Life on Earth: Complex Cells Cells and Their

  57. AP Biology

    Although terminally differentiated cells do not divide, the nuclei in these cells are still that site of what important function? Carbohydrate synthesis DNA synthesis mRNA synthesis protein synthesis

  58. science

    what are cells made from? Please, what kind of cells? There are many kinds. Jail cells, hive cells, plant cells, animal cells, blood cells, brain cells. We need a more definitve question.

  60. Intro to psychology / science

    Learning and memory researchers have discovered that : A.) physical exercise promotes new cell growth, while mental ecercise only maintains exsisitng cells. B.)stem cells can divide and mature throughout adulthood. C.) age is the biggest limiting factor in

  61. Cynthia

    Which of the statements below correctly compares features of plant and animal cells? Plant cells have a cell membrane, while animal cells have both a cell wall and a cell membrane. Plant cells have ribosomes only on the rough ER, while animal cells have

  62. Math

    (Growth of Cells) Suppose that after t hrs, there are p (t) cells present in a culture, where P(t) = 5000e*^2t a) How many cells were present initially? b) Give a differential equation satisfied by P(t) c) When will the population double? d) When will

  63. science

    What are stem cells? Stem cells, the basic building blocks of human development, are sometimes called “magic seeds.” That’s because they can regenerate human tissue of various kinds. The use of stem cells is controversial because the best source for

  65. Science

    Question 1- how does a multicellular organism develop? A- the cells differentiate. B- The cells shrink. C- One cell grows bigger. D- The cells replicate to form exact copies.

  66. biology/cells

    what cells can make energy from sugar molecules? -only plant and animal cells -only animal cells -plant, animal, bacteria, and protist cells -only plant cells

  67. Biology

    11) The recent Nobel Prize in Physiology or Medicine was awarded based on two sets of experiments. The first of these is described in the following abstract: An important problem in embryology is whether the differentiation of cells depends upon a stable

  68. division differences

    use table to compare appearance of the dividing plant cells with the appearance of the dividing animal cells. dividing of plant cells= -divide the cytoplasm between the 2 new nuclei by forming cell wall between nuclei. i need dividing animal cell help.

  70. Zoology

    Identical twins in humans, which are deuterostomes, are formed when cells at the four-cell stage are separated. A grasshopper, which is a protostome, will die if the cells are separated at the four-cell stage. What does this indicate about when the cells

  71. biology

    which of the following types of cells need to make energy to perform basic functions like growing, moving, and reproducing? -animal cells -animal cells and bacteria cells -animal cells, bacteria cells, and plant cells -plant cells

  72. Biology

    A detective gathers cell evidence at a crime scene. The victim is a 37 year old man, killed by a blow to the head. Closer examination of the evidence leads the detective to conclude that firewoods was used. Which of the following kinds of evidence BEST

  73. Mathematics

    A rare bacterial culture is being grown in a lab. As time passes, the cells multiply in a specific pattern.After 1 day, there is only 1 cell.After 2 days, there are 8 cells.After 3 days, there are 18 cells.After 4 days, there are 31 cells.How many cells

  75. Biology - please help

    After a strain of bacterial cells is exposed to a chemical mutagen, only 30% of the cells produce new colonies that continue to grow. Which of the following can be concluded? A. Some cells underwent advantageous mutations. B. Some cells underwent neutral

  76. Biology

    Humans have about 20,000 genes in our genome. Explain how cells differentiate into different kinds of cells even though they have the same set of 20,000 genes in their nuclei, so they are genetically identical.

  77. Biology

    A. The target cells move to one of the poles to establish the anterior-posterior body axis. B. The target cells undergo changes in gene expression, sending them down a specific developmental path. C. The target cells stop dividing so the neighboring cells

  78. Biology

    A physician takes a biopsy, or tissue sample, from the skin of a patient. Which observation of the cells in the tissue would support the conclusion that the patient has skin cancer?* a. Many cells in the tissue sample appear identical to one another. b.

  80. science-biology

    Some herbicides, such as 2, 4-D are believed to make plant cells divide more rapidly than normal. Why would this kill plants? Why might this be dangerous to humans if it had the same effect on human cells?

  81. science: cells

    1~ What do red blood cells do and is there anything significantly different about them from other types of cells? 2~ What are bone cells and is there anything significantly different about them from other types of cells? (I just need help for studying i

  82. intro to computers

    which option below represents a task that can be conducted in Excel through sorting? A. showing all cells that have a number that ends with a 5 B. showing all cells that have nothing in them. C. showing all cells that have the word "widget" in them. D.

  83. Science

    Which of the following is not part of the cell theory? A.Cells are the building blocks of life. B.All living things are made up of cells. C.All cells are created from other cells through cell division. D.The nucleus is the control center of the cell.***

  85. Biology

    I put them in order, but am not sure. Please take a look? Question: Put the following events of the adaptive immune response in the order they occur. (c) You cut yourself and bacteria enter the wound. (f) A dendrite near the cut phagocytizes some bacteria

  86. Science

    How is homeostasis achieved? Cells control involuntary movements. Cells maintain internal stability. Cells secrete stomach enzymes. Cells control voluntary movements.

  87. Biology

    All of the cells are in the very early stages of embryonic development and have not begun to differentiate into specialized types of cells. What type of cells would these be?

  88. biology

    can you explain the differences and similarities between the energy cycles of human cells, plant cells, and yeast cells?

  90. biology

    how do some cells become brain cells and others become skin cells when the DNA in all of the cells is exactly the same

  91. biology

    If I had an experiment where I was testing how the membrane permeability is affected by ethanol, and by doing this had to observe thin onion slides with different ethanol concentrations and had to count how many nuclei were seen through the microscope once

  92. Science/biology

    ________ cells are created by the division of _______________ cells. Answers pls check: All cells are created by the division of all cells. Am I right in both blanks I would put all?

  93. micosoft 2013

    20. Which of the following processes should Angel use to merge cells A1:D4 to create a title? A. Highlight cells A1:D4, click on the Home tab, and click on the Wrap text icon in the Alignment group. B. Highlight cells A1:D4, right-click and select Format

  95. Biology

    Some scientists reproduce, or grow, cells in a laboratory setting so they can study the cells for particular reasons. Research different examples of cells being reproduced in a lab. What is the purpose behind doing this? Name two advantages and two

  96. Inroduction to Managment Science

    reboot inc, manufacturer of hiking boots. make a rough sktch of a spreadsheet model, with blocks laid out for the data cells changing celss, ouput cells, and target cells.

  97. biology

    Some scientists reproduce, or grow, cells in a laboratory setting so they can study the cells for particular reasons. Research different examples of cells being reproduced in a lab. What is the purpose behind doing this? Name two advantages and two

  98. Peinciples of Management

    a 31 year old female contracted HIV human immunodeficiency syndrome) Ordinarily harmless infections are deadly to her. Which answer below best explains how her antibody-response (b cell immunity) became weakened even though HIV primarily infects cells

  100. Biology

    Please check my answer: Which of the following statement is not true? 1). Mitosis produces new nuclei with exactly the same chromosomal endowment as the parent nucleus. 2). Mitosis may occur without cytokinesis 3). Mitosis and cytokinesis are required for

  101. Biology

    Cancer cells differ from normal cells in that they exhibit all of the following except a. large cytoplasm - i think this one is the answer b. irregular sizes and shapes c. have multiple nuclei d. abnormal number of chromosomes

  102. chemistry

    4)You count your cells and have 8x10ᶺ5 viable cells/ml you want to see (dilute the cells) to end up with 2x10ᶺ5 viable cells/ml. What volume of cells will you put into 20 ml?

  103. Biology

    4)You count your cells and have 8x10ᶺ5 viable cells/ml you want to see (dilute the cells) to end up with 2x10ᶺ5 viable cells/ml. What volume of cells will you put into 20 ml?

  105. Advanced Biology

    The cells of cellular slime molds bear a resemblance to: a) flagellated cells b) diatoms c) ciliated cells d) dinoflagllates e) amoeboid cells I think it's b!

  106. Anatomy

    Which cell is responsible for developing antibodies for a specific antigen? A. Helper T cells B. Plasma cells C. Memory B cells D. Cytotoxic T cells B

  107. ethic and social responsibility

    Pluripotent stem cells are__________________ (Points : 1) those cells that have the potential to be used for multiple types of tissue. those cells that have potential to be used only for one type of tissue. those cells that are generally taken from adults.

  108. science

    Choose one primary reference that uses cultured cells as an experimental model. Describe briefly the type of cells used, why these particular cells were useful for the study and how they are used. List two ways in which the cells used in the study would

  110. Biology

    After a strain of bacterial cells is exposed to a chemical mutagen, only 30% of the cells produce new colonies that continue to grow. Which of the following can be concluded? A. Some cells underwent advantageous mutations. B. Some cells underwent neutral

  111. stem cells

    Stem cells may open the door to discoveries about many diseases and may allow treatments for diseases to be developed. However many ethical issues surround stem cell research which need to be addressed by scientists, governments, etc. a. Explain why

  112. biology

    Stem cells may open the door to discoveries about many diseases and may allow treatments for diseases to be developed. However many ethical issues surround stem cell research which need to be addressed by scientists, governments, etc. a. Explain why

  113. Science

    Describe the difference and function between how plant cells and animal cells obtain food. I put something like- plant cells get food by photosynthesis, using chloroplast, sun, water, and carbondioxide. animal cells get food by digesting water, meat,

  115. Biology

    Which plant cells lack a nucleus? A) sieve cells B) xylem C) companion cells D) both companion and parenchyma cells E) both xylem and sieve-tube cells Why is the answer E?

  116. Science

    If given groups of cells, what are the characteristics that will allow us to identify prokaryotic cells from eukaryotic cells?

  117. prokaryotic/cells

    We just got through with a lab and we looked at ecoli, anabaena. There first section is prokaryotic cells and the question is did all living cells you saw in the lab contain mitochondrion. I know mitochondrion is the energy powerhouse of the cell but see

  118. Biology

    I'm trying to find out how regular cells are similar to cancer cells? I have read the chapter 2 times already and the only thing I can come up with is they both divide to make new cells.

  120. Quick Biology help

    Which two factors can cause cancer cells to form? What can be made by cells that divide too fast?

  121. Biology

    1. Why are cells from a blastula used to examine mitosis? 2. How fast do you think cells divide when an embryo is developing compared to the normal growth of an animal?

  122. science

    The period when cells divide to create new cells is called

  123. science

    the period when cells divide to create new cells is called what?

  125. Science

    What cell stimulates immune cells to attack? A. Helper T cells B. Cytotoxic T cells

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