Polyspermy Study guides, Class notes & Summaries
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Bio 117-Exam 3Q&A 2023
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1) Within a sperm cell, what is the function of an acrosome? - Answer- Contains enzymes needed to penetrate egg cells 
 
2) How do membrane proteins on both an egg and a sperm cell function to keep fertilization species-specific? - Answer- A fragment from the egg-wall receptor binds to bindin proteins on the sperm only if it is the same species 
 
3) Explain the steps of the acrosomal reaction. - Answer- i. Sperm Contacts jelly layer 
ii. Reaction begins: Release of digestive enzymes and extens...
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Bio 117 exam 3 Q&A
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true or false: animals all share a similar development due to the use of similar regulatory genes that are turned "on" and "off" in similar order. - Answer- true 
 
regulatory genes - Answer- genes that control gene expression 
 
the release of the contents of cortical granules - Answer- -occurs after a single sperm cell enters the egg 
-in some animal species: causes the jelly layer of the egg to physically change and lift away. 
 
cortical granules - Answer- Vesicles that begin just under...
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Embryology Practice Questions with Answers
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Embryology Practice Questions with Answers 
 
1. The part of the sperm containing proteolytic enzymes to digest the zona pellucida is the: 
 
A. capacitor 
B. head 
C. corona 
D. acrosome 
E. cumulus - D. is correct. 
The acrosome is the part of the sperm containing proteolytic enzymes to digest the zona pellucida. It is exposed by the process of capacitation. Then, under the influence of substances released by corona radiata cells, it releases its proteolytic enzymes and penetrates the oocyte....
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TEST BANK FOR LARSEN’S HUMAN EMBRYOLOGY, 5TH EDITION, GARY SCHOENWOLF
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Test Bank 1-2 
Schoenwolf et al.: Larsen's Human Embryology, 5th Edition 
Chapter 1: Gametogenesis, Fertilization, and First Week 
Test Bank 
MULTIPLE CHOICE 
1. A child with a large sacrococcygeal teratoma is delivered by cesarean section. The 
teratoma likely arose from which type of cells? 
A. Neuroectodermal stem cells 
B. Neural crest cells 
C. Primitive streak cells 
D. Primordial germ cells 
E. Secondary oocyte cells 
ANS: D 
2. A baby is diagnosed with Down syndrome shortly after birth....
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Embryology Test Questions and Answers 2023-2024 with complete solution
- Exam (elaborations) • 8 pages • 2023
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Embryology Test Questions and Answers with complete solution
And that's how you make extra money
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VETA 105 - EARLY EMBRYOGENESIS: GAMETOGENESIS; FERTILIZATION; CLEAVAGE EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+
- Exam (elaborations) • 14 pages • 2024
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1 
VETA 105 - EARLY EMBRYOGENESIS: 
GAMETOGENESIS; FERTILIZATION; 
CLEAVAGE EXAM | QUESTIONS & 
ANSWERS (VERIFIED) | LATEST 
UPDATE | GRADED A+ 
3 Early stages in the embryonic development 
Correct Answer: Gametogenesis 
 Fertilization 
 Cleavage 
2 types of Gametes or sex cells 
Correct Answer: 1. ovum or female gamete or egg (oogenesis) 
2. spermatozoon or male gamete (spermatogenesis) 
• Able to survive in environment different from the gonad 
• Recognize the other cell - during fert...
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Embryology Exam | Actual Questions with Answers| updated 2023/24
- Exam (elaborations) • 29 pages • 2023
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Embryology Exam | Actual Questions with Answers| updated 2023/24 
 
1. The part of the sperm containing proteolytic enzymes to digest the zona pellucida is the: 
 
A. capacitor 
B. head 
C. corona 
D. acrosome 
E. cumulus - D. is correct. 
The acrosome is the part of the sperm containing proteolytic enzymes to digest the zona pellucida. It is exposed by the process of capacitation. Then, under the influence of substances released by corona radiata cells, it releases its proteolytic enzymes a...
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Embryology Practice Questions with Answers
- Exam (elaborations) • 44 pages • 2024
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1. The part of the sperm containing proteolytic enzymes to digest the zona pellucida is the: 
 
A. capacitor 
B. head 
C. corona 
D. acrosome 
E. cumulus 
D. is correct. 
The acrosome is the part of the sperm containing proteolytic enzymes to digest the zona pellucida. It is exposed by the process of capacitation. Then, under the influence of substances released by corona radiata cells, it releases its proteolytic enzymes and penetrates the oocyte. 
 
 
 
2. The ovulated mammalian oocyte is arre...
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Biology Praxis II 5235 Exam 2023
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Biology Praxis II 5235 
Exam 2023 
taxonomy categories in order? - Answer-Domain, kingdom, phylum, class, order, family, 
genus, species 
Did King Phillip Cry Out "For Goodness Sakes!" 
human taxonomic levels? - Answer-Animalia, chordata, Mammalia, primatae, 
hominidae, homo sapiens 
"All cool men prefer heavy sideburns" 
phases of mitosis? - Answer-Interphase, prophase metaphase, anaphase, telophase 
I-PMAT 
7 characteristics of all animals? - Answer-movement, reproduction, sensitivity, ...
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WSU BIO 106 FINAL EXAM Questions And Answers
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WSU BIO 106 FINAL EXAM 
 
 
 
 
 
Apoplast vs symplast - Apoplastic route water and solutes move along the continuum of cell walls and extracellular spaces 
 
3 main tissues of a plant - dermal, vascular, ground 
 
Root developed in response to low o2 - pneumatophores 
 
What is not a plant hormone - secretin 
 
phototropin/phytochrome - These receive red light and control plant morphology 
 
sclerenchyma vs parenchyma cells - Sclerenchyma: dead, provide stability 
 
Parenchyma: Living cells, p...
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