Preview

Chapter 10 Assessment

Good Essays
Open Document
Open Document
1576 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Chapter 10 Assessment
Sarah Haynes
Dr. Christerson
Honors Biology 9D
11 April 2015

10.1 Assessment

1a. Identify two reasons why a cell’s growth is limited.

The larger a cell becomes, the more demands the cell places on its DNA. In addition, a large cell is less efficient in moving nutrients and waste material across the membrane.

1b. As a cell’s size increases, what happens to the ration of its surface area to its volume?

As a cells size increases, the volume increases more than the surface area. However, the ratio decreases. Notice that the surface area is increasing as fast as the volume.

1c. Why is a cell’s surface area-to-volume ratio important?

Because this means that there is an adequate exchange of nutrients, wastes, and other materials. So when the volume of a cell increases it means that this cell can contain and obtain more materials. However, it varies due to the cell membranes bilayer, since it only allows specific material into and out of the cell.
2a. What is asexual reproduction? What is sexual reproduction?
Asexual Reproduction is the process of reproduction involving a single parent that results in offspring that are genetically identical to the parent. Sexual Reproduction is a type of reproduction in which cells from two parents unite to form the first cell of a new organism.

2b. What types of organisms reproduce sexually?

Humans and most animals and plants reproduce sexually, and so do some single-celled organisms

2c.What are the advantages and disadvantages of both asexual and sexual reproduction?

Asexual Reproduction helps in the survival because the faster they reproduce, the better their chance of survival over other organisms using the same resources. Having offspring that are genetically identical is also an advantage as long as the conditions remain favorable. However, a lack of genetic diversity becomes a disadvantage when conditions change in ways that do not fit the characteristics of an organism. On the other hand, Sexual Reproduction is a

You May Also Find These Documents Helpful

  • Satisfactory Essays

    Biology Lab 4 and 5

    • 389 Words
    • 4 Pages

    2. How does this experiment demonstrate the need for larger cells to divide? As a cell gets bigger, the outside is unable to keep up with the inside, because the inside grows a faster rate than the outside.…

    • 389 Words
    • 4 Pages
    Satisfactory Essays
  • Good Essays

    Lesson 3 quiz

    • 510 Words
    • 3 Pages

    6. The cells of a bee and an elephant are, on average, the same small size; an elephant just contains more cells. What is the main advantage of a small cell size?…

    • 510 Words
    • 3 Pages
    Good Essays
  • Good Essays

    exam 1

    • 3900 Words
    • 16 Pages

    Asexual Reproduction - The generation of offspring from a single parent that occurs without the fusion of gametes (by budding, division of a single cell, or division of the entire organism into two or more parts). In most cases, the offspring are genetically identical to the parent.…

    • 3900 Words
    • 16 Pages
    Good Essays
  • Satisfactory Essays

    Chapter 2 Assessment

    • 264 Words
    • 1 Page

    1) Which of the following is not a goal of a secure environment? C) All required information is available to users.…

    • 264 Words
    • 1 Page
    Satisfactory Essays
  • Better Essays

    Explain how the structure of the cell determines its function. Give at least 3 examples. Being specialized means that the cell or organelles structure is suited specifically for its function. Three examples of this are mitochondria, lysosomes, and the plasma membrane. Mitochondria have a lot of surface area so they can create more energy.…

    • 1082 Words
    • 5 Pages
    Better Essays
  • Satisfactory Essays

    I predict that as the cell size increases the diffusion depth and the diffusion rate will decrease.…

    • 478 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    10. For cells to stay the same size from generation to generation, what two things must be coordinated?…

    • 747 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Agar Cubes Lab Report

    • 560 Words
    • 3 Pages

    higher concentration to an area of lower concentration. Cells need to obtain certain essential substances, like oxygen, for their…

    • 560 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Conclusions: I accept my hypothesis as being correct. I accept it because the data I collected supports it. Increasing the surface area at a faster rate relative to the volume does prove to increase diffusion time. Having a cell with a ratio of 6:1 like cell (1x1x1) diffuses faster than a cell with a ratio of 3:1 like cell (2x2x2). The diffusion times I recorded advocates the validity of this statement. A real world adaption of this concept would be a frog. The frog resembles the (1x1x) cell because it is smaller than most things but its SA: V ratio is…

    • 446 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    2

    • 374 Words
    • 2 Pages

    2 Can you think of another organ in the human body that is shaped specifically to increase surface area? How does this organ’s structure relate to its function in the body? (Hint: Think about those few bites of pancakes you ate in the opening paragraph.)…

    • 374 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Brain Lab

    • 410 Words
    • 2 Pages

    3. The cerebrum folds and wrinkles increase its surface area without increasing its total volume.…

    • 410 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Explain the importance of the surface area to volume ratio as a factor limiting cell size.…

    • 1210 Words
    • 5 Pages
    Good Essays
  • Good Essays

    The surface area to volume ratio in living organisms is very important. Nutrients and oxygen need to diffuse through the cell membrane and into the cells. Most cells are no longer than 1mm in diameter because small cells enable nutrients and oxygen to diffuse into the cell quickly and allow waste to diffuse out of the cell quickly. If the cells were any bigger than this then it would take too long for the nutrients and oxygen to diffuse into the cell so the cell would probably not survive. Single celled organisms can survive as they have a large enough surface area to allow all the oxygen and nutrients they need to diffuse through. Larger multi celled organisms need specialist organs to respire such as lungs or gills.…

    • 1104 Words
    • 5 Pages
    Good Essays
  • Better Essays

    Osmosis is the process by which there is a net movement of water through a semi permeable membrane from an area of high water potential to an area of low water potential. Within a cell, osmosis has the following effect. If the water potential of the cell is lower than that around the cell water will move across a concentration gradient into the cell. If this is the case, the increase in water in the cell, may cause the cell to swell, which could consequently lead to the cell bursting. If the concentration of water is the same both inside the cell and surrounding the cell there will be a dynamic equilibrium between the number of water molecules entering and leaving the cell, hence the cell does not change size. For example, red blood cells in the blood plasma retain their shape because of the isotonic nature of the plasma. If the concentration of water is higher within the cell then that of outside the cell, there will be a net movement of water out of the cell, this will cause the cell to shrink and shrivel.…

    • 1432 Words
    • 6 Pages
    Better Essays
  • Good Essays

    Why Living Matters

    • 385 Words
    • 2 Pages

    To prevent the extinction of living matters, they are able to reproduce and pass down their genes to an offspring - continuing the species. There are two methods to reproduce, sexual and asexual.…

    • 385 Words
    • 2 Pages
    Good Essays