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OIT-BIO 233 LAB Test with 100- correct answers updated 2024
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OIT-BIO 233 LAB Test with 100- correct answers updated 2024
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OIT-BIO 233 LAB Test with 100% correctanswers updated 2024
Cell Theory - ANSWER- All organisms are made of 1 or more cells
-cells are the basic building blocks of life.
-all cells come from preexisting cells.
Gametes - ANSWER- Haploid reproductive cells
Ovum - ANSWER- egg
Sperm - ANSWER- male gamete (haploid)
zygote - ANSWER- a fusion of gametes from the parents and has inherited the
parental genetic materials.(1st 2 weeks) Diploid***
embryo - ANSWER- name given to an organism the first two months after
fertilization
Implanted embryo - ANSWER- has three phases:
germinal, embryonic, and fetal
germinal phase - ANSWER- first two weeks of embryonic development from
zygote to blastocyst and the implantation of blastocyst into the endometrium of
the uterus.
embryonic phase - ANSWER- between the 3-8 week of embryonic development.
The developing human's organ systems begin to form and is now called an
embryo.
, fetal phase - ANSWER- end of the second month-birth, most organ systems have
started to form and are more mature. the Embryo is then called a fetus
Fetus - ANSWER- end of the second month, most organ systems have started to
form, and the embryo is now called a _____ until birth
gestation - ANSWER- 9 month period for prenatal development. divided into
three-month trimesters.
-carrying of young in the uterus:pregnancy
-conception and development, especially in the mind
first trimester - ANSWER- embryo develops cell layers that are precursors to
organ systems.
second trimester - ANSWER- characterized by growth in length, mass gain, and
the appearance of functional organ systems.
third trimester - ANSWER- increases in length and mass continue to occur, and
all organ systems either become functional or are prepared to become functional
at birth.
morphogenesis - ANSWER- the general term for all the processes involved in the
specialization of cells in the developing fetus and the migration of those cells to
produce anatomical structures and function. EX: development of the heart
cell division - ANSWER- the process in reproduction and growth by which a cell
divides to form daughter cells
somatic cells - ANSWER- these cells of the body (all cells except reproductive
cells) divide by mitosis: which results in daughter cells that have a chromosome
compliment identical to the parent cells. both tthe parent cell and daughter cell
are diploid, meaning that they have 46 chromosomes (23 pairs)
mitosis - ANSWER- process that results in daughter cells that have a
chromosome compliment identical to the parent cell
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