Cells, tissues and organs
... I can state that stem cells have the ability to divide to produce cells that can become different types of cells. I can state that stem cells are involved in growth and repair. I can describe the role of meristems in plants. I can state that non-specialised cells can become any type of plant ...
... I can state that stem cells have the ability to divide to produce cells that can become different types of cells. I can state that stem cells are involved in growth and repair. I can describe the role of meristems in plants. I can state that non-specialised cells can become any type of plant ...
Chapter 32 - Mr. Krall
... In most Cnidarians, fertilized eggs give rise to free-swimming, multicellular, ciliated larvae, known as P____________________. ...
... In most Cnidarians, fertilized eggs give rise to free-swimming, multicellular, ciliated larvae, known as P____________________. ...
CBSE-AIPMT - 2006 Full Paper-Prelims
... 40. Which one of the following statements is true ? 1) Both light and sound waves in air are transverse 2) The sound waves in air are longitudinal while the light waves are transverse 3) Both light and sound waves in air are longitudinal 4) Both light and sound waves can travel in vacuum 41. Above ...
... 40. Which one of the following statements is true ? 1) Both light and sound waves in air are transverse 2) The sound waves in air are longitudinal while the light waves are transverse 3) Both light and sound waves in air are longitudinal 4) Both light and sound waves can travel in vacuum 41. Above ...
Developmental Biology
... All postembryonic growth occur at meristems which give rise to all adult structures (shoots, roots, stems, leaves and flowers) and have the capacity to divide repeatedly and give rise to a number of tissues (like stem cells). Two meristems are established in the embryo, one at the root tip and one ...
... All postembryonic growth occur at meristems which give rise to all adult structures (shoots, roots, stems, leaves and flowers) and have the capacity to divide repeatedly and give rise to a number of tissues (like stem cells). Two meristems are established in the embryo, one at the root tip and one ...
Ch 6 Anatomy Power Point Blank Outline
... *Responsible for breaking down food into nutrients & waste *entire food digestion process usually takes about 9 hours to complete Excretory System: *purifying the body by eliminating waste matter *kidneys excrete waste containing urine *liver discharges waste containing bile *skin eliminates waste c ...
... *Responsible for breaking down food into nutrients & waste *entire food digestion process usually takes about 9 hours to complete Excretory System: *purifying the body by eliminating waste matter *kidneys excrete waste containing urine *liver discharges waste containing bile *skin eliminates waste c ...
AP Biology Exam Review 6: Organism Form and Function
... initiating the response is moved farther away from the initial set-point. Amplification occurs when the stimulus is further activated which, in turn, initiates an additional response that produces system change o End result amplifies beginning, which amplifies end result, etc. (ex: oxytocin and cont ...
... initiating the response is moved farther away from the initial set-point. Amplification occurs when the stimulus is further activated which, in turn, initiates an additional response that produces system change o End result amplifies beginning, which amplifies end result, etc. (ex: oxytocin and cont ...
Lecture Notes Circulation and Gas Exchange
... transporter. The evolutionary trend from amphibians to mammals is toward smaller RBCs. Mammalian RBC are “enucleated.” This means they lack a nucleus. RBCs are bright red when oxygenated, but become darker when deoxygenated. A vein carrying deoxygenated blood appears blue in color. 15) WBCs are scav ...
... transporter. The evolutionary trend from amphibians to mammals is toward smaller RBCs. Mammalian RBC are “enucleated.” This means they lack a nucleus. RBCs are bright red when oxygenated, but become darker when deoxygenated. A vein carrying deoxygenated blood appears blue in color. 15) WBCs are scav ...
Cardiovascular System
... occur elsewhere in the body as well, most notably in the spleen, liver, and lymph glands. Most are produced in our bone marrow from the same kind of stem cells that produce red blood cells. Others are produced in the thymus gland, which is at the base of the neck. Some white cells (called lymphocyte ...
... occur elsewhere in the body as well, most notably in the spleen, liver, and lymph glands. Most are produced in our bone marrow from the same kind of stem cells that produce red blood cells. Others are produced in the thymus gland, which is at the base of the neck. Some white cells (called lymphocyte ...
- Institute of Education
... - don't have membrane- bound organelles, e.g. mitochondria, chloroplasts. ...
... - don't have membrane- bound organelles, e.g. mitochondria, chloroplasts. ...
Biological Classification / Biomes
... a) Binary fission – a type of asexual reproduction that resembles mitosis where one cell makes an identical copy of itself. b) Conjugation – a type of sexual reproduction where one cell transfers its genetic material to another cell though a thin threadlike material. The cell that receives the new D ...
... a) Binary fission – a type of asexual reproduction that resembles mitosis where one cell makes an identical copy of itself. b) Conjugation – a type of sexual reproduction where one cell transfers its genetic material to another cell though a thin threadlike material. The cell that receives the new D ...
Grade 6 Life Posttest
... ____ 21. Which statement explains why scientists classify organisms into groups based on shared characteristics? A. Classification helps scientists understand how the parts of a cell work together. B. Classification helps scientists understand the chemical reactions that are necessary for organisms ...
... ____ 21. Which statement explains why scientists classify organisms into groups based on shared characteristics? A. Classification helps scientists understand how the parts of a cell work together. B. Classification helps scientists understand the chemical reactions that are necessary for organisms ...
Grade 6 Life Posttest
... ____ 21. Which statement explains why scientists classify organisms into groups based on shared characteristics? A. Classification helps scientists understand how the parts of a cell work together. B. Classification helps scientists understand the chemical reactions that are necessary for organisms ...
... ____ 21. Which statement explains why scientists classify organisms into groups based on shared characteristics? A. Classification helps scientists understand how the parts of a cell work together. B. Classification helps scientists understand the chemical reactions that are necessary for organisms ...
The Respiratory System
... The Respiratory System • All cells in our bodies need oxygen but cannot store very much. We would die in approximately 4 minutes without it. • When we breathe, lungs soak up oxygen and transfer it to the blood where it is pumped through your body. In the cells, oxygen is turned into energy. ...
... The Respiratory System • All cells in our bodies need oxygen but cannot store very much. We would die in approximately 4 minutes without it. • When we breathe, lungs soak up oxygen and transfer it to the blood where it is pumped through your body. In the cells, oxygen is turned into energy. ...
Blood Detoxification Factors
... detoxification. One of these important enzymes, carbonic anhydrase, of which zinc is an integral part, acts as a carbon dioxide carrier, especially in red blood cells, and catalyzes the reaction.5 It takes carbon dioxide from cells and delivers it to the lungs for expulsion, and also functions in t ...
... detoxification. One of these important enzymes, carbonic anhydrase, of which zinc is an integral part, acts as a carbon dioxide carrier, especially in red blood cells, and catalyzes the reaction.5 It takes carbon dioxide from cells and delivers it to the lungs for expulsion, and also functions in t ...
Ch 24 The Body`s Defenses against Pathogens 20112012
... susceptible to the antibiotic die. - the ones that have genetic resistance survive and multiply. Complication: Antibiotics also kill beneficial bacteria (that live on and in you) that normally keep the harmful strains in check. ...
... susceptible to the antibiotic die. - the ones that have genetic resistance survive and multiply. Complication: Antibiotics also kill beneficial bacteria (that live on and in you) that normally keep the harmful strains in check. ...
Chapter 16
... • Three principal kinds of leukocytes – Granulocytes: see presence of large granules in their cytoplasm under a light microscope after staining • neutrophils (polymorphonuclear leukocytes, PMNs, or poymorphs) • basophils • eosinophiles ...
... • Three principal kinds of leukocytes – Granulocytes: see presence of large granules in their cytoplasm under a light microscope after staining • neutrophils (polymorphonuclear leukocytes, PMNs, or poymorphs) • basophils • eosinophiles ...
Epithelial Tissues
... fibers, provides a framework for the external ears and parts of the larynx. 6. Fibrocartilage, with many collagenous fibers, is a tough tissue that provides a shockabsorbing function in intervertebral disks and in the knees and pelvic girdle. ...
... fibers, provides a framework for the external ears and parts of the larynx. 6. Fibrocartilage, with many collagenous fibers, is a tough tissue that provides a shockabsorbing function in intervertebral disks and in the knees and pelvic girdle. ...
article on surface to volume ratios.
... volume. Functionally this means that as an object becomes larger, it has less surface area relative to volume. Cell size is limited by surface to volume ratios. A single cell or a single celled organism relies on diffusion across the cell surface for exchange of materials. Beyond a certain volume, a ...
... volume. Functionally this means that as an object becomes larger, it has less surface area relative to volume. Cell size is limited by surface to volume ratios. A single cell or a single celled organism relies on diffusion across the cell surface for exchange of materials. Beyond a certain volume, a ...
Chapter 3
... • The bubble that forms from the Golgi complex membrane is a vesicle. A vesicle is a small sac that surrounds material to be moved into or out of cell. • Vesicles also move material within a cell. Vesicles carry new proteins from the ER to the Golgi complex. Other vesicles distribute material from t ...
... • The bubble that forms from the Golgi complex membrane is a vesicle. A vesicle is a small sac that surrounds material to be moved into or out of cell. • Vesicles also move material within a cell. Vesicles carry new proteins from the ER to the Golgi complex. Other vesicles distribute material from t ...
Cell and Embryology Developmental Biology History and Basic
... Observations of sea urchin eggs revealed that after fertilization the egg contains 2 nuclei which fuse to form a single nucleus The nucleus must then contain the "physical basis of heredity." Somatic cell ---- mitosis, one cell two cells, chromosome no change Germ cell---Meiosis, one cell four cells ...
... Observations of sea urchin eggs revealed that after fertilization the egg contains 2 nuclei which fuse to form a single nucleus The nucleus must then contain the "physical basis of heredity." Somatic cell ---- mitosis, one cell two cells, chromosome no change Germ cell---Meiosis, one cell four cells ...
BIOLOGY EOC PREPRARATION ASSESSMENT SPRING 2013 1
... A. Independent assortment results from the binary fission of a single cell and causes mutations that can be beneficial or harmful to a species. B. Independent assortment occurs during mitosis and causes uncontrolled cell division which is harmful to a species. C. Independent assortment results from ...
... A. Independent assortment results from the binary fission of a single cell and causes mutations that can be beneficial or harmful to a species. B. Independent assortment occurs during mitosis and causes uncontrolled cell division which is harmful to a species. C. Independent assortment results from ...
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.