the cell membrane. Filtration forces molecules through and is commonly used to s
ID: 3506751 • Letter: T
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the cell membrane. Filtration forces molecules through and is commonly used to separate solids from 17. Active Transport moves from area of concentration. Requires concentration to area of probeins: (pumps). Also requires energy in the form of 18. Endocytosis and Exocytosis: In engulfed by an invagination of the cell membrane and carried into the cell surrounded by a vesicle. molecules that are too large to be t oned by oner means are is a form in which cells engulf liquids. is a form is which the cell takes in larger particles, such as a white blood cell engulting a bacterium. In molecules are pushed out of the cell 19. Cell Cycle: The series of changes a cell undergoes from the time it is formed until t cycle. The cell cycle consists of what four stages? s called the cel The cell cycle is highly regulated. Most cells do not divide continually. Cells have a maximum number of times they can divide because of built-in-clocks-called . _ on the tips of chromosomes. 20. Cell Reproduction: There are two types of cell division, mitosis and meiosis. Meiosis produces 21. mitosis: How many daughter cells are produced in mitosis?Are they identical to the "mother cel? 22. interphase: Interphase is a period of great metabolic activity in which the cell grows and 23. synthesizes new molecules and organelles. During the S phase of interphase, the of the cell is replicated in preparation for cel diision. 24. prophase: What disappears during this phase? What appears or becomes visible during this phase? 25, metaphase: Why is this phase the easlest to see on a microscope side? Chint, what are the chromosomes 26. anaphase: What characterizes this phase? 27. telophase: What reappears during this phase? What have the chromosomes done? 28. Cytokinesis begins during anaphase of mitosis and continues as the cell pinches into 29. differentiation: The process by which cells develop into different types of cells with specialized differentiation. What controls this? s called 30. What is the death of a cell called? Labeling PracticeExplanation / Answer
ANS 16) Filteration forces molecules through SEPARATION and is common;y used to separate solids from MIXTURES.
ANS 17) Active transport : moves from area of LOWER concentration to area of HIGHER concentration. Requires ENERGY proteins(pumps). Also require energy in the form of ATP.
ANS 18) Endocytosis and Exocytosis: In VESICLE TRANSPORT molecules that are large to be transported by other means ate engulfed by an invagination of the cell membrane and carried into the cell sorrounded by a vesicle.
PINOCYTOSIS is a form in which cells engulf liquids.
ENDOCYTOSIS is a form in ehich the cell takes in larger partilces, such as a white blood cell engulfing a bacterium. EXOCYTOSIS In molecules are pushed out of the cell.
ANS 19) Cell cycle: The series of changes undergoes from the time it is formed until it REPRODUCES is called the cell cycle. The cell cycle consists of what four stages?
G1 stage. Metabolic changes set up the cell for division.
S stage. DNA union repeats the hereditary material.
G2 stage. Metabolic changes collect the cytoplasmic materials important for mitosis and cytokinesis.
M stage. Amitosis trailed by a cell division cytokinesis.
The cell cycle is highly regulated; Miost cells do not divide continually. Cells have a maximum number of time they can divide becuase of built-in clocks calledTELOMERES on the tips of chromosomes
ANS 20) Cell reproduction two types of cell division , mitosis and meiosis. Meiosis produces HAPLOID cells.
ANS 21) Mitois: How many daughter cells are produced in mitosis?FOUR DAUGHTER CELLS
are they identical to the mother cell? YES
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