COPY DATE, TOPIC & OBJECTIVE ON PG. 76 Date: 1.25.16
Topic: Careful co-ordination
Objective: To understand the physiological feedback mechanisms the nueroendocrine system plays during internal homeostatic regulations of body.
COPY& ANS.DO-NOW, COPY EXIT TICKET & HW ON PG. 75
Do Now: Update TOC
• Write down 3 things you know about hormones.
• Write down 1 question you have about hormones.
Body of Lesson (Engage): (DO NOT HAVE TO COPY)
1. Do now & debrief DN 2. Careful co-ordination power point 3. Negative &
Positive Feedback video 4. Exit ticket https://www.youtube.com/watch?v=l6tu2mq1aic
HW : Organize Science Journal
Study for Ch. 5 test (Thursday, Jan. 28 th )
Exit Ticket: Summarize everything you learnt today in class in 5-6 sentences.

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Control of Our Bodies
Homeostasis

Two major things required to maintain homeostasis?
Sense Response
Homeostasis in plants:
Plants regulate water loss by opening & closing of guard cells in the stomata
Opening & Closing of Stomata

Section 39-2
The Endocrine
System regulates
Growth by means of the
Water balance by means of the
Reproduction by means of the
Metabolism by means of the
Calcium and glucose levels by means of the
Response to stress by means of the
Pituitary
Ovaries
Testes Thyroid
Parathyroids
Pancreas Adrenals

–Ex) Sweat, tears, digestive juices
–Ex) Hormones

• Glands – release products directly into bloodstream
• Hormones – chemical messengers that are produced by glands and deliver messages to body
• Target cells – the cells that a hormone acts on have specific receptors for specific hormones
– Lock and key fit

Basic Flow chart of the Endocrine Response
Stimuli
Hypothalamus Pituitary Gland Hormone
Target Cell
Response

• “Master gland”
– Controls the other endocrine glands
• Growth Hormone (GH)
– Too much – gigantism
– Too little – dwarfism
• Antidiuretic (ADH)
– Stimulates kidneys to keep water

–Metabolism and energy balance
–Regulates body energy usage
–One hormones that regulates calcium and phosphate in blood

• The adrenal gland s release epinephrine
= adrenaline which help the body deal with stress
– Fight or Flight responses

Two Ways:
1. Eating Regularly
2. Hormone Adjustments
• The Pancreas releases hormones that regulate blood sugar level before and after meals.
• Islets; clusters of cells in pancreas
– secretes glucagon – increases sugar
– secretes insulin – decreases sugar

• Between meals
Blood glucose low  Pancreas secretes glucagon  Liver changes glycogen to glucose  glucose sent to target tissues
• After a meal
Blood glucose high  Pancreas secretes insulin  Glucose goes to the
Liver(Glygogen) and goes to Target tissues

• The ovaries produce estrogen and progesterone.
• Estrogen is required for the development of secondary sex characteristics and for the development of eggs.
• Progesterone prepares the uterus for a fertilized egg.

• The testes produce testosterone, which is responsible for sperm production and the development of male secondary sex characteristics

Section 39-1
Hypothalamus
The hypothalamus makes hormones that control the pituitary gland. In addition, it makes hormones that are stored in the pituitary gland.
Pituitary gland
The pituitary gland produces hormones that regulate many of the other endocrine glands.
Parathyroid glands
These four glands release parathyroid hormone, which regulate the level of calcium in the blood.
Thymus
During childhood, the thymus releases thymosin, which stimulates Tcell development.
Adrenal glands
The adrenal glands release epinephrine and nonepinephrine, which help the body deal with stress.
Pineal gland
The pineal gland releases melatonin, which is involved in rhythmic activities, such as daily sleep-wake cycles.
Thyroid
The thyroid produces thyroxine, which regulates metabolism.
Pancreas
The pancreas produces insulin and glucagon, which regulate the level of glucose in the blood.
Ovary
The ovaries produce estrogen and progesterone.
Estrogen is required for the development of secondary sex characteristics and for the development of eggs.
Progesterone prepares the uterus for a fertilized egg.
Testis
The testes produce testosterone, which is responsible for sperm production and the development of male secondary sex characteristics

Feedback: The general process whereby the body automatically senses changing conditions and responds to them
Negative Feedback: Response opposes the initial conditions
Positive Feedback: Adjusts internal conditions towards the initial condition.
https://www.youtube.com/watch?v=l6tu2mq1aic

COPY DATE, TOPIC & OBJECTIVE ON PG. 78 Date: 1.26.16
Topic: Breath of Life
Objective: To understand how heart rate, breathing rate, oxygen and exercise are all related.
COPY& ANS.DO-NOW, COPY EXIT TICKET & HW ON PG. 77
Do Now: Update TOC
• Write down everything you know or think you know about respiration.
Body of Lesson (Engage): (DO NOT HAVE TO COPY)
1. Do now & debrief DN 2. Respiratory system power point 3. Bill Nye
Video & Wksht 4. Exit ticket https://www.schooltube.com/video/498c0d25200c48799760/Bill%
20Nye%20Respiration
HW : 1) Complete Bill Nye Video & Wksht.;2)Organize Science Journal
3) Summarize essays and answer Qs on Ch. 5 review packet
(Ch. 5 Test, Thursday, Jan. 28 th )
Exit Ticket: Summarize everything you learnt today in class in 5-6 sentences.

Respiratory System
Site of
Gas Exchange

Breathing – Inhaling and Exhaling
• brings O
2 the lungs into the lungs and CO
2 out of
• the circulatory system brings the O the cells and carries CO
2
2 to to the lungs
• O
2 is brought into cells and CO
2 cells by diffusion across the cell out of membrane

The Respiratory System
• as air passes through the nasal cavity, it is warmed and moistened
• the passages are lined with hair, cilia and mucous to help trap foreign invaders
• the warmed air passes down the trachea which is lined with cartilage to prevent it from collapsing

• just above the heart, the trachea branches into two bronchi
• Bronchi branch again into bronchioles which branch smaller and smaller
• at the end of the bronchioles are sacs called alveoli
– the specialized structures for gas exchange

Alveoli
• are specialized for optimal diffusion
–moist membrane
–large surface area
–thin walls for diffusion
–pulmonary capillaries are just large enough for a RBC to get through

COPY DATE, TOPIC & OBJECTIVE ON PG. 80 Date: 1.27.16
Topic: Ch. 5 Test Review
Objective: To review everything we learnt in Ch.5.
COPY& ANS.DO-NOW, COPY EXIT TICKET & HW ON PG. 79
Do Now: Update TOC
• Write down 6 things/topics that you need to work on for tomorrow’s test
Body of Lesson: (DO NOT HAVE TO COPY)
1. Do now & debrief DN 2.Ch. 5 Review 3. Exit ticket
HW : 1) Study for Ch. 5 Test; 2)Organize Science Journal
Exit Ticket: What are 3 things in Ch. 5 that you feel comfortable about; what are 3 things/topics that you still need to go over?

COPY DATE, TOPIC & OBJECTIVE ON PG. 82 Date: 1.28.16
Topic: Ch. 5 Test
Objective: To take a summative assessment on everything we learnt in Ch.5.
COPY& ANS.DO-NOW, COPY EXIT TICKET & HW ON PG. 81
Do Now: Update TOC
• Take out your notes & wkshts from ch.5, go over them for 5’
Body of Lesson: (DO NOT HAVE TO COPY)
1. Do now 2) Ch. 5 Test 3. Exit ticket
HW : 1 ) Organize Science Journal
Exit Ticket: Rate the test
Too Easy Just Right
Why?
Too Hard

COPY DATE, TOPIC & OBJECTIVE ON PG. 84 Date: 1.29.16
Topic: 1) Term 2 science journal Peer Review
2) Thermoregulation
Objective: To peer evaluate science journal
Understanding thermoregulation (endotherms vs. ectotherms)
COPY& ANS.DO-NOW, COPY EXIT TICKET & HW ON PG. 83
Do Now: Update TOC
• Write everything you know or think you know about thermoregulation.
Body of Lesson: (DO NOT HAVE TO COPY)
1. Do now 2) Peer Evaluation of Sc. Journal 3) Thermoregulation PP 3. Exit ticket
HW : Complete exit ticket if not done in class
Read Acids, Bases & Buffers; answer pH questions in complete sentences
Exit Ticket: Compare & contrast ectotherms vs. endotherms

SC 6-3.3

Thermoregulation: Endothermic & Ectothermic Animals
• All animals respond to changes in the environmental temperature.
• Vertebrate animals differ in their abilities to regulate body temperature.
Vertebrate Animals

• There are two different types of vertebrate animals, and they respond changes in temperature based on this type.
• Two types of vertebrates:
– Endothermic (warm-blooded)
– Ectothermic (cold-blooded)
Vertebrate Animals

• Animals which maintain a nearly constant internal temperature and do not change with the environment.
Endothermic Animals

• When the outside temperature is too hot, an endothermic animal can cool off by
– Sweating
– Panting
– Changing Position
– Changing Location
Endothermic Animals

• Sweating and panting generate heat loss through evaporating water.
• Changing position and location allow the animal to find a cooler environment in the shade or shelter.
Endothermic Animals

• Endothermic animals must eat much more often than ectothermic animals since it takes energy to maintain a constant body temperature.
• Example:
– A lion must eat its weight in food every seven to ten days.
Endothermic Animals

• Types of Endothermic animals:
– Birds
– Mammals
Endothermic Animals

• Animals which have an internal body temperature that changes with the temperature of the environment.
Ectothermic Animals

• They must gain heat to perform internal activities.
– Example: Digestion
Ectothermic Animals

 If the environment is cold, ectothermic animals become slow moving and sluggish.
 Some animals must bask in the Sun.
◦
Example: Snakes or Lizzards
 Some animals must move to a warmer area before they can move about or hunt for food.
◦
Example: Some Fish
Ectothermic Animals

• If the temperature is too hot, ectothermic animals will need to find a cooler temperature or burrow into the ground to keep its body cool.
Ectothermic Animals

• Ectothermic animals take on the temperature of their surroundings so they don ’ t have to use food energy to keep warm.
– This means they don ’ t have to eat as often.
Ectothermic Animals

• Types of Ectothermic Animals:
– Fish
– Amphibians
– Reptiles
Ectothermic Animals

Compare & Contrast Endothermic & Ectothermic Organisms