Long Exam # 1 - History of Embryology

Question 1

Once the egg is fertilized by the sperm cell, the organism is called?

Answer 1

Zygote

Question 2

Once the zygote undergoes mitosis (separation), the organism is called?

Answer 2

Embryo

Question 3

Once the embryo enters its 9th week, the organism is called?

Answer 3

Fetus

Question 4

This is the time period inside the uterus wherein the embryo transitions to the zygote

Answer 4

Gestational age

Question 5

These are mature haploid cells that are ready for union and fertilization

Answer 5

Gametes

Question 6

He proposed that plants, animals and humans had souls

Answer 6

Plato

Question 7

This pertains as the vegetative soul

Answer 7

Plants

Question 8

This pertains to the sensitive souls

Answer 8

Animals

Question 9

This pertains to the spiritual souls

Answer 9

Humans

Question 10

He discovered the different stages of chicken embryos and multiple ways that organism reproduces

Answer 10

Aristole

Question 11

He expanded on Aristotle’s findings and discovered Epigenesis

Answer 11

William Harvey

Question 12

This is the process/development of an egg to embryo (discovered by William Harvey)

Answer 12

Epigenesis

Question 13

He proposed Animalcules and Homoncolus

Answer 13

Antoni von Leeuwonhook

Question 14

These were sperm cells during the Preformationist Period

Answer 14

Animalcules

Question 15

These were microscopic but fully formed human being from which a fetus develops

Answer 15

Homunculus

Question 16

He did the 1st artificial insemination of frogs

Answer 16

Lazzaro Spallazani

Question 17

He discovered the process called Morphogenesis as well as the 3 germ layers

Answer 17

Casper Wolff

Question 18

This is the process wherein each layer turns into a specific parts of the body

Answer 18

Morphogenesis

Question 19

He discovered the terms Vis Vitalis and Vitalism

Answer 19

Johann

Question 20

This is the vital force otherwise known as DNA and chromosomes

Answer 20

Vitalism

Question 21

He discovered many similarities between embryos of vertebrates particularly amniotes

Answer 21

Carl von Baer

Question 22

He first discovered the process of Ontogeny and Phylogeny

Answer 22

Ernst Haecked

Question 23

This is the process from embryos to adults

Answer 23

Ontogeny

Question 24

This is the process or term that encompasses the whole species

Answer 24

Phylogeny

Question 25

He discovered the Germ Plasm Theory and Chromosome theory (chromosome replication)

Answer 25

August Weismann

Question 26

He first experimented on sea urchins and fertilization as well as discovered polar bodies

Answer 26

Oscar Hertwig/Richard Hertwig

Question 27

He discovered the Induction process as well as the Organizer cells

Answer 27

Hans Speman

Question 28

These are cells that dictate the formation of other cells

Answer 28

Organizer cells