AQA GCSE (9-1)
... Overview of the unit In this unit, students will learn about the structure of plant, animal, prokaryotic and eukaryotic organisms, and the functions of major structures. They will compare the level of detail revealed by light and electron microscopes, calculating magnifications. Students will descri ...
... Overview of the unit In this unit, students will learn about the structure of plant, animal, prokaryotic and eukaryotic organisms, and the functions of major structures. They will compare the level of detail revealed by light and electron microscopes, calculating magnifications. Students will descri ...
Plants! - AP Biology with Ms. Costigan
... •a.started in aquatic environments. •b.was marked by the development of specialized tissues such as vascular tissue. •c.led to the development of specialized organs. •d.demonstrated a trend toward radiating into drier ...
... •a.started in aquatic environments. •b.was marked by the development of specialized tissues such as vascular tissue. •c.led to the development of specialized organs. •d.demonstrated a trend toward radiating into drier ...
Ultrastructure of the body cavities in phylactolaemata Bryozoa
... thick ECM via hemidesmosomes. On each lateral side one peritoneal cell is located. These do not reside entirely on the ECM, but cover each one subperitoneal cell, which differs from the former in its cytoplasmic composition. The cytoplasm is electron-lucent, without conspicuous amounts of ribosomes ...
... thick ECM via hemidesmosomes. On each lateral side one peritoneal cell is located. These do not reside entirely on the ECM, but cover each one subperitoneal cell, which differs from the former in its cytoplasmic composition. The cytoplasm is electron-lucent, without conspicuous amounts of ribosomes ...
Phylum Porifera
... – Sponges have tiny openings all over their body, hints the name ‘pore-bearers’ ...
... – Sponges have tiny openings all over their body, hints the name ‘pore-bearers’ ...
Clot Formation in the Sipunculid Worm Themiste petricola: A
... aliquots of coelomic fluid mixed with small amounts of sea water over a glass surface. When coelomic fluid is placed over suspensions of bacteria or other foreign particles, these small clots are formed immediately, entrapping the particles and macroscopically resembling an agglutination reaction (F ...
... aliquots of coelomic fluid mixed with small amounts of sea water over a glass surface. When coelomic fluid is placed over suspensions of bacteria or other foreign particles, these small clots are formed immediately, entrapping the particles and macroscopically resembling an agglutination reaction (F ...
Morphology of the air‐breathing stomach of the catfish Hypostomus
... Fixation with ruthenium red revealed an electrondense coat on the surface of the epithelial cells, indicating the presence of glycosaminoglycans (Fig. 3a). The supranuclear cytoplasm contains round or oval dense bodies of diameter 0.28 –1.38 m and lamellar bodies of diameter 0.58 –1.28 m (Table 2) ...
... Fixation with ruthenium red revealed an electrondense coat on the surface of the epithelial cells, indicating the presence of glycosaminoglycans (Fig. 3a). The supranuclear cytoplasm contains round or oval dense bodies of diameter 0.28 –1.38 m and lamellar bodies of diameter 0.58 –1.28 m (Table 2) ...
Microvascular Endothelial Cells
... A chilled mixture of cells/Matrigel HC is injected Subcutaneously. In the body, the plug will be broken down over Time (10-14 d) Invasion of vessels into plug starts at day 2-3 ...
... A chilled mixture of cells/Matrigel HC is injected Subcutaneously. In the body, the plug will be broken down over Time (10-14 d) Invasion of vessels into plug starts at day 2-3 ...
Biology lecture # 1 Levels of Life (From Atom to Biosphere)
... cells, fungi and plant cells have a cell wall around their cell membrane. Cell wall makes the outermost covering in these organisms. Cell wall is tough in comparison to cell membrane; it is a rigid structure. Cell wall in plants consists of cellulose, hemicellulose, and pectin. Fungal cell walls con ...
... cells, fungi and plant cells have a cell wall around their cell membrane. Cell wall makes the outermost covering in these organisms. Cell wall is tough in comparison to cell membrane; it is a rigid structure. Cell wall in plants consists of cellulose, hemicellulose, and pectin. Fungal cell walls con ...
7 Notes (Kingdom Fungi).
... humans producing haploid sperm or eggs [gametes] using meiosis.) Mitosis: Cell division where the genome is copied first, so there is no reduction in the number of copies of the genome. (Example: division of skin cells to produce more skin cells. The diploid skin cells copy the genome first, so that ...
... humans producing haploid sperm or eggs [gametes] using meiosis.) Mitosis: Cell division where the genome is copied first, so there is no reduction in the number of copies of the genome. (Example: division of skin cells to produce more skin cells. The diploid skin cells copy the genome first, so that ...
Bacteria Basics
... is usually transmitted by close contact with the saliva or nasal secretions from an infected individual, typically in the form of airborne respiratory droplets. For this reason, it is frequently seen in situations where individuals are in close proximity to each other, as in schools, college campuse ...
... is usually transmitted by close contact with the saliva or nasal secretions from an infected individual, typically in the form of airborne respiratory droplets. For this reason, it is frequently seen in situations where individuals are in close proximity to each other, as in schools, college campuse ...
Staying alive Department of Science
... The vacuole is a round, fluid-filled sac found in both plant and animal cells. Plants usually have a few large vacuoles, while animal cells have smaller vacuoles, if any. It stores food, water, and other materials for use by the cell. Wastes may also be stored in vacuoles. The lysosome is a small, r ...
... The vacuole is a round, fluid-filled sac found in both plant and animal cells. Plants usually have a few large vacuoles, while animal cells have smaller vacuoles, if any. It stores food, water, and other materials for use by the cell. Wastes may also be stored in vacuoles. The lysosome is a small, r ...
Unit 1 - West Windsor-Plainsboro Regional School District
... ● All cells contain genetic information in the form of DNA molecules. Genes are regions in the DNA that contain the instructions that code for the formation of proteins, which carry out most of the work of cells.(HS-LS1-1) ● Multicellular organisms have a hierarchical structural organization, in whi ...
... ● All cells contain genetic information in the form of DNA molecules. Genes are regions in the DNA that contain the instructions that code for the formation of proteins, which carry out most of the work of cells.(HS-LS1-1) ● Multicellular organisms have a hierarchical structural organization, in whi ...
MODULE 1 SUMMARY - Kingdom Builders Coop
... The bad part of the change was that science began to move away from the authority of the ____________________. During this era, ____________________ published his classification system for life, which we still use today. In addition, ____________________ came up with the Law of Mass Conservation, an ...
... The bad part of the change was that science began to move away from the authority of the ____________________. During this era, ____________________ published his classification system for life, which we still use today. In addition, ____________________ came up with the Law of Mass Conservation, an ...
Excretory system - Faculty Support Site
... for synthesis of new body protein or other nitrogen-containing molecules. The amino acids not used for synthesis are oxidized to generate energy or are converted to fats or carbohydrates that can be stored. In either case, the amino groups (-NH2) must be removed because they are not needed for any o ...
... for synthesis of new body protein or other nitrogen-containing molecules. The amino acids not used for synthesis are oxidized to generate energy or are converted to fats or carbohydrates that can be stored. In either case, the amino groups (-NH2) must be removed because they are not needed for any o ...
Meiosis (Gametogenesis)
... (2N) somatic (body) cells. Mitosis allows an organism’s body to grow and to replace cells. In organisms that reproduce asexually, new organisms are produced by mitosis. • Meiosis (or gametogenesis) produces four genetically different haploid (N) cells. Meiosis produces gametes for use in sexual repr ...
... (2N) somatic (body) cells. Mitosis allows an organism’s body to grow and to replace cells. In organisms that reproduce asexually, new organisms are produced by mitosis. • Meiosis (or gametogenesis) produces four genetically different haploid (N) cells. Meiosis produces gametes for use in sexual repr ...
Classifying Living Things
... a. Organism can live in water that is very hot (>220°F) and/or very acidic (
... a. Organism can live in water that is very hot (>220°F) and/or very acidic (
SCIENCE 9 UNIT 4:REPRODUCTION WORKSHEET 5
... C. a form of asexual reproduction in which each fragment of an organism develops into a clone of its parent D. single parent cell splits into two equal parts that have the same copies of genetic material E. reproduction that requires only one parent H. root cells divide repeatedly to form structures ...
... C. a form of asexual reproduction in which each fragment of an organism develops into a clone of its parent D. single parent cell splits into two equal parts that have the same copies of genetic material E. reproduction that requires only one parent H. root cells divide repeatedly to form structures ...
TOPIC 5 Energy for biological processes 5.1 Cellular respiration
... Krebs cycle is longer with a more complex series of reactions; glycolysis has to expend ATP to move reduced NAD into the mitochondria to reach the electron transport chain; 1 hydrogen removed from each 3C sugar in glycolysis while 5 hydrogen atoms are passed into the electron transport chain from ea ...
... Krebs cycle is longer with a more complex series of reactions; glycolysis has to expend ATP to move reduced NAD into the mitochondria to reach the electron transport chain; 1 hydrogen removed from each 3C sugar in glycolysis while 5 hydrogen atoms are passed into the electron transport chain from ea ...
File - Mizzou Pre
... - Receptor proteins: binding site for hormones + other trigger molecules - Cholesterol: adds rigidity to membrane of animal cells under normal conditions (but at low temperatures it maintains its fluidity); sterols provide similar function in plant cells. Prokaryotes do not have cholesterol in their ...
... - Receptor proteins: binding site for hormones + other trigger molecules - Cholesterol: adds rigidity to membrane of animal cells under normal conditions (but at low temperatures it maintains its fluidity); sterols provide similar function in plant cells. Prokaryotes do not have cholesterol in their ...
Respiratory System
... nuclei do have characteristic locations within the epithelium. Thus the nuclei located closest to the epithelial surface usually belong to supporting cells, while basal cell nuclei are closest to the basement membrane, and the nuclei in an intermediate position belong mainly to olfactory receptor ce ...
... nuclei do have characteristic locations within the epithelium. Thus the nuclei located closest to the epithelial surface usually belong to supporting cells, while basal cell nuclei are closest to the basement membrane, and the nuclei in an intermediate position belong mainly to olfactory receptor ce ...
take homes FINAL embryo 2012
... Initially limb bud formed by core of somatic lateral plate mesoderm covered with ectoderm o Limb bud elongates by proliferation of mesenchyme in proximal-distal direction Lateral plate mesoderm – contributes to bones, blood vessels, and connective tissue Somites – contribute myoblasts that wil ...
... Initially limb bud formed by core of somatic lateral plate mesoderm covered with ectoderm o Limb bud elongates by proliferation of mesenchyme in proximal-distal direction Lateral plate mesoderm – contributes to bones, blood vessels, and connective tissue Somites – contribute myoblasts that wil ...
STB 112 Theory - Unesco
... Excretory openings are minute, located laterally on the dorsal surface and are difficult to see. Genital pare are found on the ventral surface behind the mouth. The body is covered by epidermis and its ciliated. They lock of mouth, pharynx and intestines. There is no skeleton, no respiratory system. ...
... Excretory openings are minute, located laterally on the dorsal surface and are difficult to see. Genital pare are found on the ventral surface behind the mouth. The body is covered by epidermis and its ciliated. They lock of mouth, pharynx and intestines. There is no skeleton, no respiratory system. ...
Dictyostelium discoideum
Dictyostelium discoideum is a species of soil-living amoeba belonging to the phylum Amoebozoa, infraphylum Mycetozoa. Commonly referred to as slime mold, D. discoideum is a eukaryote that transitions from a collection of unicellular amoebae into a multicellular slug and then into a fruiting body within its lifetime. Its unique asexual lifecycle consists of four stages: vegetative, aggregation, migration, and culmination. The lifecycle of D. discoideum is relatively short, which allows for timely viewing of all stages. The cells involved in the lifecycle undergo movement, chemical signaling, and development, which are applicable to human cancer research. The simplicity of its lifecycle makes D. discoideum a valuable model organism to study genetic, cellular, and biochemical processes in other organisms.