Cells‚ Cell Division‚ and Cell Specialization Fundamentally Different Types of Cell Prokaryotic Cell- single celled: only DNA+ structure (“before nucleus”) E.g. zygote-complete DNA Eukaryotic Cell-multi-celled (“after nucleus”) Prokaryotes Eukaryotes DNA In “nucleoid” region Within membrane-bound nucleus Chromosomes Single‚ circular Multiple‚ linear Organelles None Membrane-bound organelles Size Usually smaller Usually larger- 50 times Organization Usually single-celled Often multicellular
Free Cell Eukaryote
provided below‚ complete the concept map showing the structures of the nervous system. central nervous system parasympathetic division spinal cord interneurons peripheral nervous system sympathetic division motor neurons somatic nervous system synapses neurons Nervous system consists of is divided into 1. which communicate across 2. 3. which is divided into which consists of which includes 4. 5. brain 6. autonomic nervous system using signal molecules called nerves which contains
Premium Nervous system Neuron
(also called red blood cells) are biconcave disks‚ containing haemoglobin that transports oxygen. They transport the oxygen to cells all over the body. The surface area to volume ratio is very large on the erythrocytes so oxygen can diffuse very quickly into the cell. They lack organelles meaning that there is more room for haemoglobin. They are small and have a flexible membrane which allows them to fit through tiny capillaries and transport oxygen extremely close to cells. Leucocytes (also called
Premium Oxygen Blood Hemoglobin
Cells are considered the basic units of life in part because they come in discrete and easily recognizable packages. That’s because all cells are surrounded by a structure called the cell membrane. The cell is the very smallest unit of living matter. All living things including plants and animals are made up of cells. Cells are made of atoms‚ which are the smallest units of matter. There are many different kinds of cells. The two kinds you are most likely to be familiar with are animal and plant
Free Cell Eukaryote Bacteria
new A number of factors influence the brain structures and functions associated with the motivation to refrain from using drugs. The dynamics involved include intrinsic and extrinsic motivation‚ heredity‚ and environmental forces. In general‚ internal motivation is considered to be associated with long-term behavior modification‚ whereas the successful outcome of external motivation can be short lived (Pubs.niaaa.nih‚ 2010).Motivational assessment suggests a considerable challenge. To bring about
Premium Motivation
Image Example Function of each part Main Function Euglena Structure of a euglena: Flagellated protozoan that lives in the fresh waters. It is composed of chlorophyll and a rudimentary eye. Reservoir: part of a euglena that serves to accumulate. Nucleus: central organ of a Eugene. Contractile vacuole: cavity of a euglena that has the capacity to contract. Cell membrane: membrane that wraps euglena. Chloroplast: organelle of a euglena where photosynthesis is. Nucleolus: body shaped like a sphere
Premium Eukaryote Cell Cell wall
correct. High Power should show only a couple of cells that take up most of the viewing field. The micoscope is designed to view the slide at different spots‚ so not all drawings will look like this one. Images were snipped from the virtual microscope’s flash animation. Scanning (4) | Low (10) | High (40) | 3. Go to google and type "cheek cells" into the search box. Click on "images" to see all the images google has found on the web showing cheek cells (there should be hundreds). What do all of
Premium Cell Cell wall
likely occupied on there cell phone. But to most teenagers there cell phones are everything to them and it becomes there center of attention like the sun in our solar system. The feelings you get when on your cell phone makes you feel so in charge like a CEO of an powerful organization or a silver back alpha male gorilla. Sadly teens like myself are so involved into there phones we will ignore someone who is physically in front of us for someone virtually on our cell phones. Slowly it’s turning
Premium Mobile phone Solar System Physical abuse
The Function of the Human Brain By Theresa Higgins Dr. Michael Anatomy & Physiology HS120 December 14‚ 2008 The Function of the Human Cerebellum Introduction: The human brain is an extremely complicated system which controls all of our functions both physical and physiological. What are the cell/ tissue/ organ/system? 1. Glial is the cell and is one of the most important components of the cerebellum which supports the functions of nervous tissue. The nervous tissue
Premium Brain Cerebellum Neuron
The cell is the fundamental structural unit of all living organisms. Some cells are complete organisms‚ such as the unicellular bacteria and protozoa; others‚ such as nerve‚ liver‚ and muscle cells‚ are specialized components of multi-cellular organisms. Cells range in size from the smallest bacteria-like mycoplasmas‚ which are 0.1 micrometer in diameter‚ to the egg yolks of ostriches‚ which are about 8 cm (about 3 in) in diameter. Although they may differ widely in appearance and function‚ all cells
Premium Cell Eukaryote Organelle