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Unit Vocabulary List
Unit Vocabulary List

... Cell – the basic unit of living things Cytoplasm – the clear jellylike material that is inside the cell membrane Membrane – the outer covering of the cell Nucleus – the largest organelle in a cell - controls the cell’s actions Organelles – separate compartments in the cytoplasm that holds parts of t ...
ANATOMY AND PHYSIOLOGY OF THE PULMONARY SYSTEM
ANATOMY AND PHYSIOLOGY OF THE PULMONARY SYSTEM

... a. pulmonary arteries enter through the hilar region of the lung b. follow airways in a posterior lateral position c. arteries branch as airways branch d. an artery has three distinct layers: i) tunica intima ii) tunica media iii) tunica adventitia 3. arterioles a. walls of arterioles consist of thr ...
Chapter Outline
Chapter Outline

... i. Microglia cells support neurons and also phagocytize bacterial and cellular debris. ii. Astrocytes provide nutrients and produce a growth factor known as glia-derived growth factor that someday may be used to cure diseases of neural degeneration. iii. Oligodendrocytes form the myelin around an ax ...
File - Anatomy & Physiology
File - Anatomy & Physiology

... Tissues of the Human Body Tissues: groups of cells closely associated that have a similar structure and perform a related function ...
Variation - Plantsbrook Science
Variation - Plantsbrook Science

... same genes, although they could have different alleles. Alleles coding for the same characteristic will be found at the same locus (place) on each chromosome in a homologous pair. Mutations are changes in the base sequence of an organism’s DNA. Thus mutations can produce new alleles of genes. A gene ...
Chapter 16: Cells - The Units of Life
Chapter 16: Cells - The Units of Life

... of a bird. But human muscles are not powerful enough to make such wings flap. Later, inventors studied birds such as eagles, which often glide through the air on outstretched wings. Successful gliders were built in the 1800s, but the gliders had no source of power to get them off the ground—and they ...
Module 1 Keystone Review File - Dallastown Area School District
Module 1 Keystone Review File - Dallastown Area School District

... 1. Which characteristic is shared by all prokaryotes and eukaryotes? a. ability to store hereditary information b. use of organelles to control cell processes c. use of cellular respiration for energy release d. ability to move in response to environmental stimuli 2. Living organisms can be classifi ...
Keystone Review Packet
Keystone Review Packet

... 1. Which characteristic is shared by all prokaryotes and eukaryotes? a. ability to store hereditary information b. use of organelles to control cell processes c. use of cellular respiration for energy release d. ability to move in response to environmental stimuli 2. Living organisms can be classifi ...
Module A Keystone Practice Problems File
Module A Keystone Practice Problems File

... 1. Which characteristic is shared by all prokaryotes and eukaryotes? a. ability to store hereditary information b. use of organelles to control cell processes c. use of cellular respiration for energy release d. ability to move in response to environmental stimuli 2. Living organisms can be classifi ...
Introduction to animals
Introduction to animals

... of all animals except sponges ● Typically three layers in depth ● All body features arise from one of these layers ...
Do you know? - Sakshieducation.com
Do you know? - Sakshieducation.com

... propagation of plants involving tissue culture. In tissue culture, few plant cells or plant tissue are placed in a growth medium with plant hormones in it and it grows into new plants.Thousands of plants can be grown in very short interval of time. By grafting a very young scion (shoot part of a pla ...
Epithelium Lecture
Epithelium Lecture

... and a portion of the urethra. This epithelium rests on a lamina propria of areolar tissue. It is capable of great distension. The cells of transitional epithelium appear balloon-like when the bladder is empty of urine. ...
Cells
Cells

...  example – nerve cells are long and thin; their shape helps to send signals to other cells  groups of cells of the same type work together to perform certain functions  take in food and water, reproduce, grow, move, get rid of waste, die  Most have cells that are not able to exchange gases with ...
Earthworm - World of Teaching
Earthworm - World of Teaching

... •Dorsal side- dark mid dorsal line •Ventral side- genital openings •Ant. End- Mouth, Prostomium, Peristomium ...
Drosophila
Drosophila

... • These small fish (2 - 4 cm long) are easy to breed in the laboratory in large numbers. • The transparent embryos develop outside the mother’s body. • Although generation time is two to four months, the early stages of development proceed quickly. • By 24 hours after fertilization, most tissues and ...
Cells→ Tissues → Organs → Organ Systems
Cells→ Tissues → Organs → Organ Systems

... 1. Which scientist is given credit for discovering cells? 2. Which scientist found single cells living in pond water? Tissue A main purpose of a cell is to organize. Cells hold a variety of pieces and each cell has a different set of jobs. But many cells like to work with other cells just like many ...
PiXL AQA – Knowledge PowerPoint
PiXL AQA – Knowledge PowerPoint

... indicators (Mosses and Lichens) These are very sensitive to changes in AIR pollution. ...
Intro to animal structure and function powerpoint
Intro to animal structure and function powerpoint

... • Ex. Child birth ...
Chapter 2: Cells - The Units of Life
Chapter 2: Cells - The Units of Life

... Cell Theory Because most cells are small, they were not observed until microscopes were invented. In 1665, scientist Robert Hooke, using a microscope that he made, observed tiny, boxlike things in a thin slice of cork, as shown in Figure 1. He called them cells because they reminded him of the small ...
Document
Document

... a source of energy and building materials for growth and repair of organisms. 8.L.5.1 Summarize how food provides the energy and the molecules required for building materials, growth and survival of all organisms (to include plants). Food provides molecules that serve as fuel and building material f ...
What are atoms and molecules?
What are atoms and molecules?

... LIPIDS – What do they do They are a great source of STORED ENERGY so we have it in the future. They INSULATE the body to maintain normal body temperature and they CUSHION the internal organs for ...
Human Body Challenge
Human Body Challenge

... to a receptor inside the cell, to make which other molecule? ...
Exam review F15
Exam review F15

... the cell part and in the third column sketch what it looks like. Nucleus, nucleolus, ribosome, mitochondria, vacuole, golgi, cell membrane, cytoplasm, vesicle, SER, RER, cell wall, chloroplast. (the last two are found in plant cells only) 2. Make a table with the following macromolecules. In the sec ...
sem2 wl2 - WordPress.com
sem2 wl2 - WordPress.com

... 26. Liver: an organ that makes bile (pH that digests fats), builds proteins, gets and makes glucose. It also gets nutrients from food. 27. Gallbladder : organ that stores bile and sends it to the duodenum to help it digest fat easier 28. Pancreas: glandular organ that makes many important hormones s ...
Biology 11 17.3 Domains and Kingdoms Grouping Species The
Biology 11 17.3 Domains and Kingdoms Grouping Species The

... Kingdom Fungi § A fungus is a unicellular or multicellular eukaryote that absorbs nutrients from organic materials in its environment. § Member of Kingdom Fungi are heterotrophic, lack motility, and have cell walls. ...
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Cell theory



In biology, cell theory is a scientific theory which describes the properties of cells. These cells are the basic unit of structure in all organisms and also the basic unit of reproduction. With continual improvements made to microscopes over time, magnification technology advanced enough to discover cells in the 17th century. This discovery is largely attributed to Robert Hooke, and began the scientific study of cells, also known as cell biology. Over a century later, many debates about cells began amongst scientists. Most of these debates involved the nature of cellular regeneration, and the idea of cells as a fundamental unit of life. Cell theory was eventually formulated in 1838. This is usually credited to Matthias Schleiden and Theodor Schwann. However, many other scientists like Rudolf Virchow contributed to the theory. Cell theory has become the foundation of biology and is the most widely accepted explanation of the function of cells.The three tenets to the cell theory are as described below: All living organisms are composed of one or more cells. The cell is the most basic unit of life. All cells arise from pre-existing, living cells, by biogenesis.
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