Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337670319
Author: STARR
Publisher: Cengage
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Textbook Question
Chapter 41, Problem 3CT
Some sperm mitochondria enter an egg during fertilization, but as sperm nature these mitochondria are tagged with a protein (ubiquitin) that marks them for destruction. What organelle carries out this destruction process?
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As a sperm cell finally approaches its final target, its acrosome becomes activated. The acrosome is a specialized organelle found in the cell’s head region and activation results in the exocytosis of several types of proteolytic enzymes.
Name 2 specific proteins you might expect the enzymes released by the acrosome to breakdown. What purpose does this play in the fertilization of the egg? Explain your reasoning.
According to the concepts of totipotency, pluripotency, and multipotency: 1. Which of the following structure has the most powerful cellular potency: Zygote? Embryo? Or fetus?Explain why.
Of the following cell types, which one would be most likely to exist in the G0 state?
A.
An epithelial cell in the intestine of a developing embryo
B.
A primary spermatocyte
C.
An intestinal epithelial cell line growing rapidly in a cell culture dish
D.
A differentiated intestinal epithelial cell in an adult
Chapter 41 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 41 - Stuck Sperm Cells lining the epididymis secrete a...Ch. 41 - Prob. 2DAACh. 41 - Prob. 3DAACh. 41 - Prob. 4DAACh. 41 - Sexual reproduction ___ . a. requires formation of...Ch. 41 - The ___ is a genetic dead end. a. polar body b....Ch. 41 - Prob. 3SQCh. 41 - Prob. 4SQCh. 41 - During a menstrual cycle, a midcycle surge of...Ch. 41 - Prob. 6SQ
Ch. 41 - Prob. 7SQCh. 41 - Male germ cells divide by meiosis inside the...Ch. 41 - A male attains an erection when ___ . a. muscles...Ch. 41 - Prob. 10SQCh. 41 - Prob. 11SQCh. 41 - Prob. 12SQCh. 41 - Match each disease with the type of organism that...Ch. 41 - Match each structure with its description. ____...Ch. 41 - Match each hormone with its source. ____ FSH and...Ch. 41 - Prob. 1CTCh. 41 - Fraternal twins are nonidentical siblings that...Ch. 41 - Some sperm mitochondria enter an egg during...Ch. 41 - Occasionally more than one sperm penetrates and...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Mitosis and Meiosis In which stage do cells spend the majority of their time? How do you know?arrow_forwardMitosis results in two identical diploidcells. What structures form during prophase?arrow_forwardIf every cell in your body is a copy of that original fertilized egg, how is it that some cells are so different than other cells? How does differentiation help explain these different cell typesarrow_forward
- If a liver cell has 10 chromosomes, how many does a sperm cell have from the same species?arrow_forwardIn humans, what kinds of cells undergo cell division most often? What kinds of cells almost never undergo cell division?arrow_forwardThe stages G1, S, and G2 occurs during which stage of the cell cycle?arrow_forward
- ) Describe the action of the lysosomes in various “unique” situations, such as the destruction of specific cells during embryonic development, or the part they play in the shedding of the endometrium of the uterus during the menstrual cycle.arrow_forwardwhy do cells spend less time in metaphasearrow_forwardIn your own words,briefly describe the process of mitosis and differentiation.arrow_forward
- Is mitotic metaphase most similar to metaphase l or metaphase ll or meiosis? Why?arrow_forwardmany anticancer drugs inhibit the formation of the mitotic spindle. what inpact will this have on cell division? why?arrow_forwardVirtually every multicellular organism, including you, goes from a single-celled fertilized egg to a large, multicellular organism. In this post you will demonstrate an understanding of how the process of mitosis leads to the growth of an organism and how cell differentiation results in the wide variety of specialized cells found in a multicellular organism. How does mitosis explain the process of growth? Can growth occur only through mitosis? If every cell in your body is a copy of that original fertilized egg, how is it that some cells are so different than other cells? How does differentiation help explain these different cell types? Cite some specific examples of differentiated (specialized) cells. Please remember to add a question to engage your classmates in the discussion.arrow_forward
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Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY