Ask Nature - the Biomimicry Design Portal: biomimetics, architecture, biology, innovation inspired by nature, industrial design - Ask Nature - the Biomimicry Design Portal: biomimetics, architecture, biology, innovation inspired by nature, industrial desi Reproductive System for Kids - Science Games and Videos Reproductive System for Kids The human reproductive system comprises of organs that allow us to produce offsprings for the survival of the species, and passing on hereditary traits from one generation to the next. In the male, the reproductive organs include the testes, accessory ducts, accessory glands, and penis. In the female, the reproductive organs include the uterus, uterine tubes, ovaries, vagina, and vulva. Play Quiz Games : NeoK12 is iPad & Android tablet ready. Science Games, Diagrams & Activities : Pictures & School Presentations : Science Videos & Lessons:(Reviewed by K-12 teachers) Search Videos Suggest Science Videos Click below to find & suggest other science videos. Topic : Reproductive System Standards Common Core State Standards Videos are embedded and streamed directly from video sites such as YouTube and others. NeoK12 makes learning fun and interesting with educational videos, games and activities for kids on Science, Math, Social Studies and English.
Four Stages of Cellular Respiration Cellular respiration is the sum of the various biochemical means that eukaryotic organisms employ to extract energy from food, specifically glucose molecules. The cellular respiration process includes four basic stages or steps: Glycolysis, which occurs in all organisms, prokaryotic and eukaryotic; the bridge reaction, which stets the stage for aerobic respiration; and the Krebs cycle and the electron transport chain, oxygen-dependent pathways that occur in sequence in the mitochondria. The steps of cellular respiration do not happen at the same speed, and the same set of reactions may proceed at different rates in the same organism at different times. Cellular Respiration Equation The complete cellular respiration formula looks slightly different from source to source, depending on what the authors choose to include as meaningful reactants and products. Glycolysis Glycolysis takes place in the cytoplasm. The Bridge Reaction The Krebs Cycle The Electron Transport Chain
Cell Size and Scale Some cells are visible to the unaided eye The smallest objects that the unaided human eye can see are about 0.1 mm long. That means that under the right conditions, you might be able to see an ameoba proteus, a human egg, and a paramecium without using magnification. Smaller cells are easily visible under a light microscope. To see anything smaller than 500 nm, you will need an electron microscope. Adenine The label on the nucleotide is not quite accurate. How can an X chromosome be nearly as big as the head of the sperm cell? No, this isn't a mistake. The X chromosome is shown here in a condensed state, as it would appear in a cell that's going through mitosis. A chromosome is made up of genetic material (one long piece of DNA) wrapped around structural support proteins (histones). Carbon The size of the carbon atom is based on its van der Waals radius.
MadSciNet: The 24-hour exploding laboratory. Plant and Animal Cell Worksheets This collection of animal and plant cell worksheets strikes a balance between cognitive and psychomotor domains of learning and offers a conceptual grounding in cell biology. The worksheets recommended for students of grade 4 through grade 8 feature labeled animal and plant cell structure charts and cross-section charts, cell vocabulary with descriptions and functions and exercises like identify and label the parts of the animal and plant cells, color the cell organelles, match the part to its description, fill in the blanks, crosswords and more. Diffuse into a cell with our free worksheets! Plant Cell Diagram | Animal Cell Diagram Featured in this printable worksheet are the diagrams of the plant and animal cells with parts labeled vividly. Cell Vocabulary How does a minute cell accomplish complex tasks? Plant cell vs Animal cell What is the difference between a plant cell and an animal cell? Cross-Section of a Plant Cell Label the Parts of a Plant Cell Name the Parts of a Plant Cell
top20biology.com Exploratorium 10 Tips for Teaching Cells - Getting Nerdy Science Graphic Organizers and Analogies: As students learn the names of all the crazy organelles found inside of bacteria, plant, and animal cells, the key to helping them remember the parts and functions is to use a cell organelle graphic organizer. We like to give student a template for detailing what kind of cell has these organelles, their locations, brief description of their appearance, and their function. In order to further help students retain the information we create a picture or drawing that incorporates all of the info they wrote about that organelle. For example, based on the description of the cell membrane and its ability to determine what goes into and out of the cell, we draw a body guard or a doorman. This visual analogy makes it easy to remember all the details about the cell’s membrane. We also like to get the students thinking more critically, so we add on to this activity by asking them to think about what would happen to the cell if a specific organelle went missing!