Functional+Anatomy+of+the+Respiratory+System
... substance called a surfactant which reduces the surface tension of water, thereby enabling it to better coat the cells of the alveoli to keep them moist and keep them from sticking to each other when the person exhales. • The ability to secrete this chemical doesn’t develop ...
... substance called a surfactant which reduces the surface tension of water, thereby enabling it to better coat the cells of the alveoli to keep them moist and keep them from sticking to each other when the person exhales. • The ability to secrete this chemical doesn’t develop ...
CHAPTER 7 RESPIRATION
... 1) The protozoa is a unicellular aquatic microorganism. Two common protozoa are amoeba and paramecium. 2) As it is very small in size, the total surface area-volume ratio is large (about 60 000 : 1 ) 3) Hence, gaseous exchange by simple diffusion occurs rapidly across the thin plasma membrane which ...
... 1) The protozoa is a unicellular aquatic microorganism. Two common protozoa are amoeba and paramecium. 2) As it is very small in size, the total surface area-volume ratio is large (about 60 000 : 1 ) 3) Hence, gaseous exchange by simple diffusion occurs rapidly across the thin plasma membrane which ...
BIOL 1101 – Principles of Biology I
... Students will be exposed to modern concepts of the chemical, cellular, bases of life. Topics include: scientific methodology; chemistry of life; structure and function of cells; energy transformations; cellular reproduction; Mendelian genetics; DNA structure, function, replication; and the processes ...
... Students will be exposed to modern concepts of the chemical, cellular, bases of life. Topics include: scientific methodology; chemistry of life; structure and function of cells; energy transformations; cellular reproduction; Mendelian genetics; DNA structure, function, replication; and the processes ...
Individual Test Item Specifications
... Items assessing evolution will focus on a conceptual understanding of the supporting scientific evidence. Items will not require memorization of the names of specific human fossils or the names of the different hominid species. Items assessing the fossil record must focus on the fossil rather than g ...
... Items assessing evolution will focus on a conceptual understanding of the supporting scientific evidence. Items will not require memorization of the names of specific human fossils or the names of the different hominid species. Items assessing the fossil record must focus on the fossil rather than g ...
AS Biology Specification
... This specification provides a suitable foundation for the study of biology at A level. In addition, the specification provides a coherent, satisfying and worthwhile course of study for learners who do not progress to further study in this subject. This specification is not age specific and, as such, ...
... This specification provides a suitable foundation for the study of biology at A level. In addition, the specification provides a coherent, satisfying and worthwhile course of study for learners who do not progress to further study in this subject. This specification is not age specific and, as such, ...
Anatomy of the Respiratory System
... tum cannot be seen on the head model, but it can be iden tified in Figure 24.1b. 7. On a head model and on a skull, identify the superior bor der or roof of the nasal cavity. Verify that the cribriform plate separates the nasal cavity from the cranial cavi ty. 8. On the skull , identify the fo ...
... tum cannot be seen on the head model, but it can be iden tified in Figure 24.1b. 7. On a head model and on a skull, identify the superior bor der or roof of the nasal cavity. Verify that the cribriform plate separates the nasal cavity from the cranial cavi ty. 8. On the skull , identify the fo ...
Biology - Tutor
... forms the next level of organization—the ecosystem. Within an ecosystem are producers, consumers, and decomposers. Review Figure 1.4 on page 5 of your textbook for an illustration of the three members that make up a grassland, which is one kind of terrestrial ecosystem. The highest level of organiza ...
... forms the next level of organization—the ecosystem. Within an ecosystem are producers, consumers, and decomposers. Review Figure 1.4 on page 5 of your textbook for an illustration of the three members that make up a grassland, which is one kind of terrestrial ecosystem. The highest level of organiza ...
PHYT 622 Clinical Gross Anatomy
... Once calcification has occurred, cartilage cells die, leaving cavities through which blood vessels will grow. Gradually, these spaces connect in the middle and form the marrow cavity Occurs throughout fetal life so that successive layers of bone are deposited and bone thickens ...
... Once calcification has occurred, cartilage cells die, leaving cavities through which blood vessels will grow. Gradually, these spaces connect in the middle and form the marrow cavity Occurs throughout fetal life so that successive layers of bone are deposited and bone thickens ...
Cancer across the tree of life: cooperation and cheating in
... cancer-like phenomena in each of the seven branches of complex multicellularity in the tree of life. We find that cancer is characterized by a breakdown in the central features of cooperation that characterize multicellularity including cheating in proliferation inhibition, cell death, division of l ...
... cancer-like phenomena in each of the seven branches of complex multicellularity in the tree of life. We find that cancer is characterized by a breakdown in the central features of cooperation that characterize multicellularity including cheating in proliferation inhibition, cell death, division of l ...
video slide
... require that the blood transport large quantities of O2 and CO2 • Gases diffuse down pressure gradients in the lungs and other organs ...
... require that the blood transport large quantities of O2 and CO2 • Gases diffuse down pressure gradients in the lungs and other organs ...
Common Ancestry
... Food is chewed, swallowed, and passed into the stomach where it is broken down into nutrients. The nutrients are then absorbed into the blood in the small intestine and distributed. • Muscular – chewing and swallowing food • Digestive – breaking down food into nutrients in the stomach and small int ...
... Food is chewed, swallowed, and passed into the stomach where it is broken down into nutrients. The nutrients are then absorbed into the blood in the small intestine and distributed. • Muscular – chewing and swallowing food • Digestive – breaking down food into nutrients in the stomach and small int ...
Curriculum Guide Template DRAFT
... c. Communication among cells within an organism. Learner Outcome: With 80% accuracy, the learner will be able to • Identify and describe the structure and function of the nucleus, plasma membrane, cell wall, mitochondrion, vacuole, chloroplast, and ribosome. • Demonstrate the use of microscope techn ...
... c. Communication among cells within an organism. Learner Outcome: With 80% accuracy, the learner will be able to • Identify and describe the structure and function of the nucleus, plasma membrane, cell wall, mitochondrion, vacuole, chloroplast, and ribosome. • Demonstrate the use of microscope techn ...
1.18 Cellular Respiration
... racing heart. By the age of 16, Sarah was attending school in a wheelchair. Tests showed that she had high levels of acidity in her blood. Her doctors were puzzled. After extensive study, a team of researchers traced Sarah’s problem to a defect in her mitochondria. Her muscles could not make suffici ...
... racing heart. By the age of 16, Sarah was attending school in a wheelchair. Tests showed that she had high levels of acidity in her blood. Her doctors were puzzled. After extensive study, a team of researchers traced Sarah’s problem to a defect in her mitochondria. Her muscles could not make suffici ...
Parasitology Glossary
... development. In some instances (e.g. cysticercosis) the accidental host becomes a "dead end" because even though the parasite develops through its appropriate stages, it fails to find a portal of exit and is thus blocked from continuing its life cycle. ...
... development. In some instances (e.g. cysticercosis) the accidental host becomes a "dead end" because even though the parasite develops through its appropriate stages, it fails to find a portal of exit and is thus blocked from continuing its life cycle. ...
Chapter 20 and 21 – Human Body and Digestion/Nutrition
... b. White blood cells i. Phagocytes eat pathogens ii. Natural Killer Cells kill our own cells that are infected c. Inflammatory Response – defends injuries from infection (Fig. 24.2) i. Histamine is produce by damaged cells. This relaxes capillaries allowing greater blood flow. This invites white bl ...
... b. White blood cells i. Phagocytes eat pathogens ii. Natural Killer Cells kill our own cells that are infected c. Inflammatory Response – defends injuries from infection (Fig. 24.2) i. Histamine is produce by damaged cells. This relaxes capillaries allowing greater blood flow. This invites white bl ...
Science - the Southwick-Tolland-Granville Regional School District
... an ecosystem. Explain how biotic and abiotic factors influence an ecosystem. What factors affect population size? Suggested Number of Sessions: 16 ...
... an ecosystem. Explain how biotic and abiotic factors influence an ecosystem. What factors affect population size? Suggested Number of Sessions: 16 ...
Slides 3.1
... Membrane Transport Membrane Transport – movement of substance into and out of the cell ...
... Membrane Transport Membrane Transport – movement of substance into and out of the cell ...
File - e
... Q.6. Name any two pigments fiund in red algae. Q.7. From which algae agar is obtained? Q.8. Where is Funaria found? Q.9. Name the pigments found in cyanobacteria. Q.10. Name the male and female sex-organs in Funaria. Q.11. What is the mode of nutrition in sporophyte of Funaria? Q.12. State the func ...
... Q.6. Name any two pigments fiund in red algae. Q.7. From which algae agar is obtained? Q.8. Where is Funaria found? Q.9. Name the pigments found in cyanobacteria. Q.10. Name the male and female sex-organs in Funaria. Q.11. What is the mode of nutrition in sporophyte of Funaria? Q.12. State the func ...
The Respiratory System Organization of the Respiratory System
... Surfactant cells release surfactant -> decrease surface tension (prevents collapse of alveolar walls.) Anatomy and Physiology for Engineers Slide 11-9 ...
... Surfactant cells release surfactant -> decrease surface tension (prevents collapse of alveolar walls.) Anatomy and Physiology for Engineers Slide 11-9 ...
Overview of Cells and Body Systems - Moodle
... Introduction to Cells, Tissues and Body Systems Life Science FLSS All images used are taken from copyright-free sources e.g. Wikicommons Media or produced by UWS staff and are for illustrative purposes. ...
... Introduction to Cells, Tissues and Body Systems Life Science FLSS All images used are taken from copyright-free sources e.g. Wikicommons Media or produced by UWS staff and are for illustrative purposes. ...
form 1 april, 2012 holiday assignment questions
... N/B: 1. The questions outlined herein summarise the concepts to be learnt in the topic of Cell Physiology. It is therefore mandatory that all students read, understand and make short notes about the aforementioned topic during the holiday before attempting the questions. Revision of this assignment ...
... N/B: 1. The questions outlined herein summarise the concepts to be learnt in the topic of Cell Physiology. It is therefore mandatory that all students read, understand and make short notes about the aforementioned topic during the holiday before attempting the questions. Revision of this assignment ...
Biology Demystified (2003)
... This book seeks to give you an intuitive grasp of biology and its terminology. It helps do this by presenting you with 4 icons (cartoon pictures) representing various facets of Biological Order, versus Biological Disorder. Key facts within these categories are numbered in the page margins. You are e ...
... This book seeks to give you an intuitive grasp of biology and its terminology. It helps do this by presenting you with 4 icons (cartoon pictures) representing various facets of Biological Order, versus Biological Disorder. Key facts within these categories are numbered in the page margins. You are e ...
Homeostasis
... UNICELLULAR ORGANISMS Move materials in and out using the cell membrane. In direct contact with external environment unlike multicellular organisms Just move wastes out of the cell and be done with them Do not have tissues, so all homeostasis is controlled by the cell membrane moving material ...
... UNICELLULAR ORGANISMS Move materials in and out using the cell membrane. In direct contact with external environment unlike multicellular organisms Just move wastes out of the cell and be done with them Do not have tissues, so all homeostasis is controlled by the cell membrane moving material ...
Diversity of Protists
... A colony is a loose association of independent cells A Volvox colony: A hollow sphere Thousands of cells arranged in a single layer surrounding a watery interior Each cell of colony resembles a Chlamydomonas cell Flagella beat in a coordinated fashion Some cells are specialized for reproduction ...
... A colony is a loose association of independent cells A Volvox colony: A hollow sphere Thousands of cells arranged in a single layer surrounding a watery interior Each cell of colony resembles a Chlamydomonas cell Flagella beat in a coordinated fashion Some cells are specialized for reproduction ...
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.