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BIOL 1307 EXAM 1 FARMER QUESTIONS ANDF ANSWERS EXPERT CERTIFIED ALREADY GRADED A+
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BIOL 1307 EXAM 1 FARMER QUESTIONS ANDF ANSWERS EXPERT CERTIFIED ALREADY GRADED A+
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BIOL 1307 EXAM 1 FARMER QUESTIONS ANDFANSWERS EXPERT CERTIFIED ALREADY GRADED A+
Four parts of sperm and their functions - ANSWERS-Head - contains nucleus an
acrosome enzyme (for penetrating barriers around the egg)
the neck - contains one centriole that will combine with a centriole contributed by
the egg to form a centrosome, which is required for the formation of the spindle
apparatus during mitosis.
The midpiece (body) - contains mitochondria to power the sperm with ATP
The tail with flagellum - a long structure composed of microtubles surrounded by
a plasma membrane that whips back and forth to make swimming possible
Sperm are streamlined cells specialed for racing to the egg.
Eggs are bulky, far less mobile storage containers that are packed with valuable
materials.
ovary - ANSWERS-where meiosis occurs and mature eggs are produced.
oviparous - ANSWERS-Eggs hatch outside the mother's body
viviparous - ANSWERS-live birth
,ovulation - ANSWERS-egg is expelled from the ovary and enters the oviduct
(fallopian tube), where fertilization can occur.
fertilized eggs are transported to the - ANSWERS-uterus
endosperm - ANSWERS-A nutrient-rich tissue formed by the union of a sperm cell
with two polar nuclei during double fertilization, which provides nourishment to
the developing embryo in angiosperm seeds.
an egg consists of - ANSWERS-a haploid nucleus
fulle component of other organelles
large supply of nutrients (yolk/endosperm)
Three mechanisms of asexual reproduction - ANSWERS-budding, fission,
parthenogenesis
budding - ANSWERS-Asexual reproduction in which a part of the parent organism
pinches off and forms a new organism
Fission Reproduction - ANSWERS-The parent separated into two or more offspring
of equal size.
parthenogenesis - ANSWERS-Asexual reproduction in which females produce
offspring from unfertilized eggs.
offspring can be produced by mitosis, meiosis, or by the fusion of two products of
meiosis.
, Sperm are produced in the - ANSWERS-testes
Sperm is stored in the ______. - ANSWERS-epididymis
Spermatogenesis - ANSWERS-the production of sperm cells
tube that transports sperm from the epididymis to the ejaculatory duct -
ANSWERS-vas deferens
ejaculatory duct - ANSWERS-tube through which semen enters the male urethra
vitelline envelope - ANSWERS-Extracellular matrix of an egg that controls binding
of sperm to egg and access of sperm to the egg plasma membrane
human vitelline envelope is called the - ANSWERS-zona pellucida
corona radiata - ANSWERS-The layer of granulosa cells that surround an oocyte
after is has been ovulated.
Zygote - ANSWERS-fertilized egg
embryonic development - ANSWERS-The process by which the embryo is formed
and develops, until it develops into a fetus.
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