The cell is the basic structural, functional, and biological unit of all known living organisms. A cell is the smallest unit of life.
Lesson 2
Cell Theory
The original cell theory states that the cell is the basic structural and functional unit of living organisms and all cells come from other cells.
Lesson 3
Prokaryotic Cell And Eukaryotic Cell
Prokaryotic Cell- are cell that don’t have nucleus, have DNA in cytoplasm, simple, unicellular. Eukaryotic Cell -are cell that have nucleus, have DNA is in nucleus, complex, multi-cellular or unicellular.
Lesson 4
Compound, Molecule, And Atom
Compound-a substance made up of atoms of two or more element joined by chemical bonds. Molecule-a group of atoms that are held by chemical bonds. Atom- atom is the smallest object that retains the properties of an element
Lesson 5
Structure And Function Of Cell
Endoplasmic Reticulum: Processes and transport protein and make lipid. Golgi complex: Sends materials in cell. Lysosomes: Produce enzymes that digest wastes. Nucleus:Contain genetic material. Mitochondrion: Breaks down food . Chloroplast: Make food for plant cell. Large central vacuole: Store water, nutrient and waste. Ribosome: Makes protein.
Lesson 6
Cell, Tissue, Organ, And Organ System
Cell: The cell is the basic structural, functional, and biological unit of all known living organisms, a cell is the smallest unit of life. Tissue: A tissue is a combination of cells doing the same things. Organ: A organ is a combination of tissues doing the same things. Organ System: A organ system is a combination of organs doing the same things.
Lesson 7
Alveoli and Villi
Alveoli: Alveoli is any of the many tiny air sacs of the lungs which allows for rapid gaseous exchange.
Villi:Villi is any of the numerous minute in elongated projections set closely together on a surface, typically increasing its surface area for the absorption of substance, in particular.
Lesson 8
Osmosis and Diffusion
Osmosis: It moved through the cell from high concentration to low concentration.
Diffusion: Diffusion is the moving from high concentration to low concentration.
Lesson 9
Endocytosis and Exocytosis
Endocytosis: Endocytosis is how nutrients or other particles moved in the cell.
Exocytosis: Exocytosis is how cell remove wasted in the cell.
Lesson 10
Active Transport and Passive Transport
Active Transport: Active transport move from low concentration to high concentration it needs energy.
Passive Transport: Passive transport it move from high concentration to low concentration it does not need energy.
Lesson 11
Homeostatis
Homeostatis: It help maintain body temperature, constant internal environment, and maintained glucose level.
Lesson 12
Cellular Respiration
Cellular Respiration:Is where the plants keep the energy.
Lesson 13
Photosynthesis
Photosynthesis: Is how plants and some living things use to produce energy from water,light, and carbon to make sugar.
Lesson 14
Cellular Respiration and Photosynthesis Connection
Photosynthesis use cellular respiration product for materials it use carbon dioxide and water and it products is glucose and oxygen.
Lesson 15
Chromosome
Chromosome:Chromosome are made up of DNA+PROTIEN.
Lesson 16
Mitosis
Mitosis: Phrophase:The chromosomes start to become thicker and shorter.The nuclear breaks and chromosomes duplicate.
Metaphase:The spindle goes to the opposite corners and chromosomes are aline.Then the spindle fiber hold the chromosomes.
Anaphase:The spindle fiber pull it and the chromosome are cut in to 2 parts call chromatids. Telophase:The c ell start to separate and cytoplasm pinched inward.This process use to make body cells.
Lesson 17
Meosis
Meosis: Phrophase1:The nuclear breaks and chromosomes duplicate.
Metaphase1:Chromosomes line up in the middle. Spindle fiber hold the chromosomes .
Anaphase1:The spindle fiber .
Telophase1:The cell start to separate and cytoplasm pinched inward.
Phrophase 2:The nuclear doesn't breaks and chromosomes duplicate. Metaphase 2:Chromosomes line up in the middle. Spindle fiber hold the chromosomes.
Anaphase 2:The spindle fiber pull it and the chromosome are cut in to 2 parts call chromatids.
Telophase 2:The cell start to separate and cytoplasm pinched inward.This process produce sex cell only that are sperm and egg cell.
Lesson 18
Asexual Reproduction
Asexual Reproduction:They don't need partners, both female and male can reproduce, quicker and easier.
Lesson 19
Sexual Reproduction
Sexual Reproduction: They need partners, female only, and slower.
Lesson 20
Down Syndrome
Down Syndrome: Usually people in one pair of chromosome have 2 chromosome, but down syndrome people in a chromosome have 3 chromosome.
Lesson 21
Heredity
Heredity:Is a genes that got sended from your parents.
Lesson 22
DNA&RNA
DNA: Give information to RNA
RNA:Gets the protien to ribosome.
Lesson 23
Genetic Engineering, Artificial Selection, and Cloning
Genetic Engineering: Is the process of the manually inserted into a organism.
Artificial Selection: Is a process by human or animal breeds.
Cloning: Is the making of something identical.
Lesson 24
Evolution Theory
Evolution Theory : Is when an animal need to adapt into a new environment.
Lesson 25
Acceleration
Acceleration: Is the rate that increase or decrease the velocity.
Positive Acceleration: Is the rate that increase the velocity.
Negative Acceleration: Is the rate that decrease the velocity.
Centripetal Acceleration: Is moving in a circular way or path.
Velocity: Is speed with direction.
Lesson 26
Net Force
If 2 people push/pull on one side it will be F2+F1 If 2 people push/pull on an opposite side it will be F2-F1 F2= FINAL FORCE F1=INITIAL FORCE
Lesson 27
3 Law Of Motion
1st Law Of Motion: That an object will stay at rest .
2nd Law Of Motion: The acceleration of an object depends on the mass of the object and the amount of force applied.
3rd Law Of Motion: For every action there is an equal or opposite reaction on the object.
Lesson 28
Gravity, Mass, And Weight
Gravity: Is a force that you pull down.
Mass: Is the amount of matter.
Weight: Is like holding something down by placing a heavy object on top of it.
Lesson 29
Buoyant Force
Buoyant Force: Buoyant force is the force that push the object that hit the fluid .
Lesson 30
Archimedes Principal
Archimedes Principal: Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid.
Lesson 31
Atomic Model Timeline
1808-John Dalton:
All atoms of a certain elements are identical.
Atoms cannot be created, divided, or destroyed.
Atoms join with other atoms to make new substances.
1897-J.J Thomson:
Atoms are made up of even smaller particles.
Particles within the atom that have a negative charge.
Negatively charge particles later became known as electrons.
1909-Ernest Rutherford:
Atom have a nucleus a small dense center that have a positive charge.
nucleus is surrounded by moving electrons.
nucleus is made up of positively charged particles called Proton.
1913-Niels Bohr:
Electron move around the nucleus in circular paths.
Each path is a certain distance from the nucleus.
Bohr model helped scientists predict the chemical properties of elements.
1932-James Chadwik:
Nucleus contains uncharged particles called neutrons.
Electrons do not move in circular path.
Electrons move within an area around the nucleus called the electron cloud.