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Science, Gr. 9
Reproduction Unit
Unit 2 Test
A. Picture Matching (K – 1 point each)
budding
stamen
binary fission
mitosis
pistil
plant cell
zygote
sperm
microtubules
haploid chromosome
diploid chromosome
animal cell
B. Word Matching (K – 1 point each)
__ chromosomes
a) the emergence of a baby
__ pistil (stigma+style)
b) a sweet sugary substance
__ ovulation
c) a fertilized egg splits in two and both halves develop separately
__ pollen
d) the male parts of the flower
__ identical twins
e) made of a molecule called DNA
__ birth
f) the release of an egg by the ovary once every menstrual cycle
__ stamen (anther+filament)
g) attaching the branch of one tree to the roots of another
__ grafting
h) a two wheeled vehicle
__ nectar
i) a male gamete
__ fraternal twins
j) two eggs are released, both are fertilized and develop separately
__ hermaphroditism
k) the female parts of the flower
C. Labeling (K – 2 points per feature)
1. Draw lines to the following parts on the animal cell, and state their functions
structure
what it does
nucleus
chromosomes
mitochondrian
cell membrane
2. Draw lines to the following parts on the plant cell and state their functions
structure
what it does
cell wall
chloroplast
microtubules
nucleus
same as animal cell function
3. Draw lines to the following reproductive structures and state their functions
structure
penis
ovary
fallopian tube
testis
egg
what it does
D. Ordering (K – 9 points; 1 off for each out of order)
1. Place a number beside each of the following stages of human reproduction
___ a baby is born
___ ovulation occurs, and an egg is released
___ ultrasound can determine the sex of the fetus
___ the zygote is implanted in the wall of the uterus
___ an embryo is growing in the uterus
___ sperm in semen swim through the vagina and uterus to the uterine tube
___ sperm fertilize the egg creating a zygote
___ the zygote divides by mitosis and moves to the uterus
___ the fetus is capable of grasping with its hand
___ the placenta comes out attached to the umbilical cord
E. Multiple Choice (K – 5 points)
1. Which statement below is true about sexual reproduction?
(a) only one parent is required
(b) offspring are different from parents
(c) a lot of energy is required
(d) all of the above
2. What condition is NOT necessary for external fertilization to occur?
(a) both parents traveling to the same location
(b) a water environment
(c) the production of many eggs
(d) the sperm and eggs must be of the same species
(e) all of the above are necessary for external fertilization ot occur
3. Which of the following are examples of gametes?
(a) sperm and eggs
(b) stamen and pistil
(c) leaves and petals
(d) stigma and style
4. Organisms that reproduce by external fertilization must
(a) live on land
(b) produce thousands of eggs
(c) be able to get from one environment to another
(d) take care of their young after they are born
5. Normal chimpanzee cells have 48 chromosomes. Which one of the following statements about chimpanzee
cells is correct?
(a) body cells have 24 chromosomes
(b) a zygote will have 96 chromosomes
(c) a cell following mitosis will have 24 chromosomes
(d) a chimp sperm cell will have 24 chromosomes
F. Written Questions
1. a) What is mitosis? _____________________________________________________________
______________________________________________________________________________
b) How is this different from meiosis? _______________________________________________
______________________________________________________________________________
2. State one similarity and one difference between the following:
a) embryo and fetus
Similarity: __________________________________________________________________
Difference: _________________________________________________________________
b) binary fission and budding
Similarity: __________________________________________________________________
Difference: _________________________________________________________________
c) sexual reproduction and asexual reproduction
Similarity: __________________________________________________________________
Difference: _________________________________________________________________
3. A woman thinks she might be pregnant and has a few drinks of alcohol. What could happen?
________________________________________________________________________________
________________________________________________________________________________
4. Why is the life cycle of a frog an example of external fertilization?
________________________________________________________________________________
________________________________________________________________________________
5. State and explain one argument for or against cloning humans __________________________
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
6. A hummingbird visits a large red-tubed flower called a Zingiberia and sucks the delicious nectar
out of it. It visits many of these flowers in a day. Explain how it helps the Zingiberia reproduce.
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________