EBK BIOLOGY
5th Edition
ISBN: 8220101337627
Author: Maier
Publisher: PEARSON
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Chapter 22, Problem 10LTB
Summary Introduction
Introduction:
The fertilization in humans is the process, in which the sperm and the ova meet in the fallopian tube to form a diploid zygote. For the fertilization to occur the sperm need to swim all the way through the female vagina, cervix, and uterus and then it needs to deliver the nucleus in the cytoplasm of the ova.
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The placenta is formed from ________.a. the embryo’s mesenchymal cellsb. the mother’s endometrium onlyc. the mother’s endometrium and the embryo’schorionic membraned. the mother’s endometrium and the embryo’sumbilical cord
Sperm cells originally come from a diploid cell called a…
Group of answer choices
A. secondary oocyte
B. primary spermatocyte
C. gonadal cell
D. acrosome
E. seminiferous cell
An egg cell originally comes from an unspecialized diploid cell called a(an)…
Group of answer choices
A. secondary oocyte
B. follicle
C. primary oocyte
D. oviduct
E. oogonium
Chapter 22 Solutions
EBK BIOLOGY
Ch. 22 - Prob. 1LTBCh. 22 - Describe the male and female reproductive...Ch. 22 - Describe gametogenesis in males and females.Ch. 22 - A sperm cell follows which path? seminiferous...Ch. 22 - An egg cell that is not fertilized follows which...Ch. 22 - Which of the following is mismatched? urethra:...Ch. 22 - Gametogenesis _________ . A. begins at puberty in...Ch. 22 - Prob. 8LTBCh. 22 - Prob. 9LTBCh. 22 - Prob. 10LTB
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- Before neurulation occurs, the cells that will later become neural crest cells are part of the _____. ectoderm notochord neurogenic placodes neural crest cells are derived from all of these tissuesarrow_forward1 3. Enzymes are important during the process of fertilization. What would be the anticipated consequences if the level of acrosin was low or non-existent in the acrosome? 5. The Sperm would not be able to break through the protective coat on the egg (zona pellucida). meaning the sperm are unable to fertilize anegg 4. The morula contributes to a layer that becomes the embryo and to cells that become the placenta. What are the names of these structures? Illustrate and label these layers/structures. What is the name of the outer cell layer of the blastocyst and what does it give rise to? Does this layer contribute to the development of the embryo? 6. Explain the origins of the blastocyst cavity and what purpose does it serve? 7. Describe implantation of a blastocyst using simple, labeled diagrams.arrow_forwardDuring gastrulation, cells from the _____ layer of the bilaminar germinal disc migrate and form the three primary germ layers. a. notochord b. hypoblast c. epiblast d. mesoblastarrow_forward
- Some Steps Involved in the Process of Fertilization 1. Zygote 2. Morula 3. Оосyte 4. Fertilization 5. Cleavage 6. Blastocyst The order is which the steps numbered above occur in the process of fertilization is andarrow_forwardWhy is a second polar body expelled after fertilisation (select one) a. The oocyte must recativate the incomplete meiosis before fusing with the sperm b. To remove excess cytoplasm c. Before fusion with the sperm it must complete mitosis d. The fertilised oocyte is not a haploid cell until it expels the sperms mitochondriaarrow_forwardDuring the embryonic period each of the three germ layers gives rise to a number of specific tissues & organs, one of the following statements is not true? O a. The intermediate mesoderm will give rise to the urogenital system. O b. Blood cells & blood vessels arise from the mesoderm. O c. Paraxial mesoderm is divided into small segment (blocks) known as somites. O d. Neurulation is the process by which the neural plate forms the gut tube. O e. In general, the ectoderm gives rise to structures & organs that maintain contact with the outside world. Clear my choicearrow_forward
- All of the following components of the sperm enter the secondary oocyte EXCEPT the 1. mitochondria 2. nuclear membrane 3. chromatin 4. flagellar microtubules 5. basal body Group of answer choices (A) 1 and 4 (B) 2 and 3 (C) 2, 3, and 4 (D) 2, 3, and 5 (E) 1, 2, 3, and 5arrow_forwardFour spermatozoa arise from each:- a. primordial germ cell. b. type A spermatogonium. c. type B spermatogonium. d. secondary spermatocyte. e. spermatidarrow_forwardSubject (Developmental Biology) The Following are parts of sperm cell, what their importance in fertilization? A. Acrosomal Vesicle B. Nucleus C. Mid piece D. Mitochondrion E. Plama membrane F. Tailarrow_forward
- Part 1: The diagram below shows the main components of the male reproductive system. A B a) Name components A to F. Component Name A B C Figure. 1 Male Reproductive System Component Testis Vas Deferens Epididymis b) Relate the ture of the following components shown in Figure. 1 to the biological function they provide: Biological Function F Component Name D E F Structural Feature(s) Darrow_forwardWhich of the following statements about oocytes and ovulation is correct? a. The production of primary oocytes continues in women from the onset of puberty until the onset of menopause. b. Meiotic divisions are complete at the time of ovulation. c. At ovulation, the structure released from the follicle includes a secondary oocyte and polar body. d. All of these statements are correctarrow_forwardOvary H&E 2. 5. _follicle 1. _cells 4. Stage of egg cell? _follicle 3. Stage of egg cell? 6. Membrana ASD TE Ovary H&E 7. Term applied to these follicular cells 9. Term for these follicular cells 10. 8. antrum oocytearrow_forward
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