Download Reproduction

TEKS 10 A & B, 11A
Reproductive System
TAKS Objective 2 – The student will demonstrate an understanding of
living systems and the environment.
TEKS Science Concepts 10 A & B
The student knows that, at all level of nature, living systems are found
within other living systems, each with its own boundary and limits. The
student is expected to:
(A) interpret the functions of systems in organisms including
circulatory, digestive, nervous, endocrine, reproductive,
integumentary, skeletal, respiratory, muscular, excretory, and
immune;
(B) compare the interrelationships of organ systems to each other
and to the body as a whole;
11 A
The student knows that organisms maintain homeostasis. The student is
expected to:
(A) identify and describe the relationships between internal feedback
mechanisms in the maintenance of homeostasis.
TAKS Objective 2
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BIOLOGY
For Teacher’s Eyes Only
Teacher Background: There are twelve major organ systems in the human body
(i.e., circulatory, skeletal, respiratory, excretory, integumentary, nervous,
digestive, endocrine, reproductive, immune, lymphatic, and muscular systems). In
this TEKS, we will introduce students to the common structures of each system
and their basic functions. A brief description of these systems follows:
Reproductive System –
Unlike many other systems, organisms can live a healthy long life without using
their reproductive systems and producing offspring. However, for a species to
continue, some individuals must produce offspring. This is the major function of
the reproductive system; to ensure continued survival of a species of organism.
There are four main functions of the reproductive system:
1. To produce gametes (egg and sperm cells)
2. To maintain and transport these gametes.
3. Production of hormones
4. Nurture and product the developing offsping
Positive Feedback Mechanisms - In a positive feedback system the change will
continue to increase in one direction until something happens in the body to
stop it. For example, contractions of the uterus are triggered by pressure against
the cervix during childbirth. This pressure causes the release of a hormone,
oxytocin. The contractions will continue until the child exits the womb.
Testosterone production is another example of a positive feedback system.
Student Prior Knowledge
Students should be familiar with the components associated with body systems
TEKS 6.10 (C) identify how structure complements function at different levels of
organization including organs, organ systems, organisms, and populations and the
functions of these systems.
TAKS Objective 2
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BIOLOGY
The Reproductive System
5 E’s
ENGAGE
Watch development clip from PBS video Universe Within. Have students
complete the film guide while watching the video.
EXPLORE
Explore 1
Students will complete a coloring activity from an anatomy-coloring workbook.
Explore 2
Have student familiarize themselves with the reproductive glands and their
functions by completing the endocrine system worksheet in the Blackline
Masters.
EXPLAIN
Complete the Reproductive System PowerPoint presentation using the
following manipulative to represent the different parts of the reproductive
system:
Sugar packets – sugar granules – eggs
Broccoli Florets – sperm
Straw 11 cm – Fallopian Tubes Spools of tread – seminiferous tubules
Walnut -ovary
Balloons – uterus
TAKS Objective 2
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BIOLOGY
ELABORATE
Watch the live birth sequence at the end of Miracle of Life and discuss the
hormones (Endocrine System) role in labor. Refer back to feedback mechanism
and discuss the differences between a positive feedback mechanism and a
negative feedback mechanism.
Homeostasis simulation: Draw a straight line across the board. Explain to
students that you want your finger to stay on the straight line while you have your
eyes closed. They are going to help you by patting on their desk. If they pat
faster, you will move your finger up. If they pat slower, you will move your
finger down. If they are all patting at the same consistent rhythm you will know
that you are on the line. This will demonstrate how the endocrine system has a
continual ebb and flow of hormones that attempts to keep our body in
equilibrium.
EVALUATE
1. Using their text, student will correctly identify and color the reproductive
system structures. A grade of pass/fail will be given for correctly
identifying the reproductive organs.
2. Using the text, class notes and class discussion the learner will correctly
match 7 out of 10 reproductive structures with their function.
TAKS Objective 2
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BIOLOGY
TAKS Objective 2
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BIOLOGY
The Universe Within
Reproduction
1. A woman is born with all the _______ she will ever have.
2. Only _____ eggs will grow to maturity.
3. Female eggs are stored in __________.
4. Male sperm are found in _______ feet of testicles.
5. Sperm are created at the rate of __________ each second.
6. During __________ an egg is expelled from the ovary.
7. It takes _____ days for the egg to travel to the uterus.
TAKS Objective 2
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BIOLOGY
Teacher’s Film Guide Answers
The Universe Within
Reproduction
1. A woman is born with all the eggs she will ever have.
2. Only 400 eggs will grow to maturity.
3. Female eggs are stored in ovaries.
4. Male sperm are found in 300 feet of testicles.
5. Sperm are created at the rate of a thousand each second.
6. During ovulation an egg is expelled from the ovary.
7. It takes 4 days for the egg to travel to the uterus.
TAKS Objective 2
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BIOLOGY
The Reproductive System
Directions: Below are labeled diagrams of the male and female reproductive
systems in the human. Next to the diagram are lettered lists of structures. Each of
the structures has a function. Refer to the diagrams. In the blanks next to the
statements below, write the letter of the structure that is described. Not all terms
are used.
GET NEW PICTURES AND LABEL WITH LETTERS
__ 1. Passage leading from the outside of the body to the uterus.
__2. Reproductive organ that produces sperm
__3. Narrow tube that carries semen or urine from the male body.
__4. The narrow neck of the uterus.
__5. External male organ through which semen passes to the outside of the body
__6. Pear-shaped organ with thick, muscular wall that holds a developing uterus.
__7. External sac that encloses the testes.
__8. Narrow tube leaving the each testis through which sperm travels.
__9. Reproductive organ that produces eggs.
__10. Narrow tube that carries the eggs.
TAKS Objective 2
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BIOLOGY