05.25.09
7th Grade Exam Summaries
topic-review-fill-in <– Here is the handout
READ THE DIRECTIONS FROM THE SUB-PLAN Post.
Post your exam summaries here after completing the Topic Review Handout. If your group finishes early, post sample questions related to your topic.
DO NOT PRINT OUT REVIEWS FOR EACH CLASSMATE. THEY CAN LOOK AT YOUR SUMMARY ONLINE AND IT IS A WASTE OF PAPER.
Groups
CELL ORGANELLES – Lilly & Jake
BODY SYSTEMS (non nervous, repro, endo) – Reagan & Jessica
PERIPHERAL NS & PATH OF AN IMPULSE – Ann (sometime E) & Claudia
CENTRAL NS & PARTS OF BRAIN – Henry & Jacob
TYPES OF NEURONS – Matt & Natalie
PREBIRTH STAGES OF HUMAN DEVELOPMENT – Emma & Susannah
POST BIRTH STAGES OF HUMAN DEVELOPMENT – Regan & Caroline
MALE REPRODUCTIVE SYSTEM & PUBERTY (M&F) – Maddie & Anjali
FEMALE REPRODUCTIVE SYSTEM & MENSTRUATION – Ana & Abby
MULTIPLE BIRTHS – Christopher & Steele
GLANDS OF THE ENDOCRINE – Charlie & David
BASICS OF HEREDITY/KEY TERMS – (someone double up please!)
STRUCTURE OF DNA – (someone double up please!)
MITOSIS & MEIOSIS – (someone double up please!)
EVOLUTION – Hope
May 26, 2009 at 8:58 am
The periodic table is a chart of elements organized in groups and periods according to their mass, their structure, their atomic number, and their classification. It was invented by Dmitri Mendeleev in 1869. Each little box of an element, has the name of the element, the atomic number, atomic symbol, and atomic mass. They are each categorized in groups numbering from 1-18. The periodic table is a nice organized way to present your elements.
olivia emma and andye
May 26, 2009 at 11:05 am
BODY SYSTEMS:
The skeletal system provides shape and support, enables you to move, protects your internal organs, produces blood cells, and stores certain materials until your body needs them. The muscular system enables the body to move; moves food through the digestive system, and keeps the heart beating. The digestive system breaks down food into molecules the body can use, then the molecules are absorbed into the blood and carried throughout the body, then the wastes are eliminated from the body. The cardiovascular system carries needed substances to cells and carries waste products away from cells. The Respiratory system functions to move oxygen from the outside environment into the body, also it removes carbon dioxide and water from the body. The excretory system collects and removes wastes from the body. All of these systems work together to help the body stay healthy, strong, and maintain homeostasis.
May 26, 2009 at 11:10 am
TOPIC: Cell Organelles
Summary
Plant and animal cells are both different but alike. Plant cells have one more organelle than animal cells and are much more rectangular. They also have chloroplasts and a cell wall. Animal cells have a more round shape and contain a lysosome. Apart from these small differences, they are very alike in their functions.
Key Terms
1. Nucleus – brain
2. Nucleolus – contains genetic material
3. Cell Wall – supports/protects
4. Endoplasmic Reticulum – transporters
5. Cytoplasm – gel-like fluid
6. Golgi Bodies – packages proteins to lipids
7. Vacuole – storage
8. Mitochondria – converts food to energy
9. Cell Membrane – doorway
10. Chloroplasts – convert sunlight into food*
11. Ribosome – makes proteins
12. Lysosome – breaks apart dead organelles**
*=only in plant cells
**=only in animal cells
May 26, 2009 at 11:13 am
1.) What does the Vacuole do?
2.) What do the Chloroplasts do?
3.) What does a Ribosome do?
*Cell Walls are only in plant cells! (No asterisks on it in post above)
May 26, 2009 at 11:22 am
This is Emma and the honorary journalism-ite, Susannah. Here’s our summary of prebirth development.
There are three stages of human development before birth. The first is the zygotic stage. In this stage, the egg has just been fertilized by the sperm, and is beginning to multiply. It goes from one cell, to two cells, to four cells, to eight cells, and so on. It eventually forms into a hollow ball of hundreds of cells. This hollow ball then implants itself on the side of the uterus. From this point on, it is called the embryo. The inside of this hollow ball continues to grow, and the placenta, umbilical cord, and amniotic sac begin to form. After the embryo has grown for nine weeks, it becomes a “fetus.” While it is in the fetal stage, it begins to look more baby-like, or humanoid. In the last three months of development, the fetus is prepared to survive outside of the mother’s body. Important organs, such as the brain, lungs, and heart develop. After about nine months of overall development inside the uterus, the baby is ready to survive in the outside world and is ready to be born.
Feel better, Mr. Kremer! See you soon.
May 26, 2009 at 11:39 am
Summary
The peripheral NS are the senses. They are the eye, the spinal cord, the ear, the tongue, the brain, and the skin. The peripheral nervous system works mostly with the brain and the spinal cord. The peripheral nervous system consists of sensory neurons and motor neurons, these help you feel different things.
May 26, 2009 at 11:42 am
This is our blurb about the three different kinds of neurons.
There are three kinds of neurons; they are interneurons, sensory neurons, and motor neurons. Together they make up a chain of nerve cells. The sensory neurons pick up the internal or external stimuli and convert them into a nerve impulse. The interneurons are the neurons that carry the nerve impulses from one neuron to another. The motor neuron sends the impulse to a muscle an the muscle contracts in response to the impulse.
THANKS!!
~ Natalie and Matthew
May 27, 2009 at 2:52 pm
Evolution is the developments and changes in species over millions of years of time. Charles Darwin was the first to theorize evolution saying that natural selection is the key to evolution. Natural selection is the adaptation in a species to its given environment.
The modern evolutionary theory is V.I.S.T; or Variation, inheritance, selection, and time.