Blood Composition and Function
... • Straw colored fluid made of water (~90%), other contents include: • Proteins make the bulk of the solutes: Albumins (60%), manufactured in the liver are the most abundant Globulins (36%) are immune bodies Fibrinogen (4%) for blood clotting ...
... • Straw colored fluid made of water (~90%), other contents include: • Proteins make the bulk of the solutes: Albumins (60%), manufactured in the liver are the most abundant Globulins (36%) are immune bodies Fibrinogen (4%) for blood clotting ...
6.5 Nerves, Hormones and Homeostasis
... 6.5.1 State that the nervous system consists of the central nervous system (CNS) and peripheral nerves, and is composed of cells called neurons that can carry rapid electrical impulses. 6.5.2 Draw and label a diagram of the structure of a motor neuron. 6.5.3 State that nerve impulses are conducted f ...
... 6.5.1 State that the nervous system consists of the central nervous system (CNS) and peripheral nerves, and is composed of cells called neurons that can carry rapid electrical impulses. 6.5.2 Draw and label a diagram of the structure of a motor neuron. 6.5.3 State that nerve impulses are conducted f ...
Biology ORGANISMS Practice Test with Answer Key
... This online assessment item contains material that has been released to the public by the Massachusetts Department of Education. ...
... This online assessment item contains material that has been released to the public by the Massachusetts Department of Education. ...
49_DetailLectOut_jkAR
... An action potential conducted from the eye to the brain has about 100,000 times as much energy as the few photons of light that triggered it. Some amplification occurs in the sensory receptors, and signal transduction pathways involving second messengers often contribute to it. Amplification c ...
... An action potential conducted from the eye to the brain has about 100,000 times as much energy as the few photons of light that triggered it. Some amplification occurs in the sensory receptors, and signal transduction pathways involving second messengers often contribute to it. Amplification c ...
THE NERVOUS SYSTEM The individual neuron cannot do much
... However other mechanisms underlie other behaviours. Neuronal circuits, more than one neuron working in tandem with each other, are responsible for, for example the lateral eye in Limulus, the horseshoe crab. The eye in Limulus is a compound eye made up of separate photoreceptive units. Each unit con ...
... However other mechanisms underlie other behaviours. Neuronal circuits, more than one neuron working in tandem with each other, are responsible for, for example the lateral eye in Limulus, the horseshoe crab. The eye in Limulus is a compound eye made up of separate photoreceptive units. Each unit con ...
Notes
... A group of similar cells that perform the same function is called tissue. A group of different kinds of tissues that coordinate their actions into a main primary function is called an organ. A group of organs and tissues that work together to maintain homeostasis in the body are called a system. ...
... A group of similar cells that perform the same function is called tissue. A group of different kinds of tissues that coordinate their actions into a main primary function is called an organ. A group of organs and tissues that work together to maintain homeostasis in the body are called a system. ...
Chapter 49 – Sensory and Motor Mechanisms
... The mechanism is similar to that associated with the utricle and saccule. 4. A lateral line system and inner ear detect pressure waves in most fishes and aquatic amphibians. ...
... The mechanism is similar to that associated with the utricle and saccule. 4. A lateral line system and inner ear detect pressure waves in most fishes and aquatic amphibians. ...
Complete AP Bio Exam Review
... Chloroplast- double membrane; site of photosynthesis (glucose synthesis) Cell wall- middle lamella- pectin; primary cell wall- cellulose; secondary cell wall- lignin j. Endosymbiont theory- all eukaryotic cells came from bacterial cells that lived together; proof= all chloroplasts and mitochondr ...
... Chloroplast- double membrane; site of photosynthesis (glucose synthesis) Cell wall- middle lamella- pectin; primary cell wall- cellulose; secondary cell wall- lignin j. Endosymbiont theory- all eukaryotic cells came from bacterial cells that lived together; proof= all chloroplasts and mitochondr ...
WikiJunior Biology - USP Theses Collection
... What is life? Living things are not like things that are not alive. Living things are like each other. They share some things. Living things can change and grow. Living things need nutrition. Living things can move. Living things can reproduce. Living things can respond to stimulation (touch). Livin ...
... What is life? Living things are not like things that are not alive. Living things are like each other. They share some things. Living things can change and grow. Living things need nutrition. Living things can move. Living things can reproduce. Living things can respond to stimulation (touch). Livin ...
ap biology exam review guide
... Chloroplast- double membrane; site of photosynthesis (glucose synthesis) Cell wall- middle lamella- pectin; primary cell wall- cellulose; secondary cell wall- lignin j. Endosymbiont theory- all eukaryotic cells came from bacterial cells that lived together; proof= all chloroplasts and mitochondr ...
... Chloroplast- double membrane; site of photosynthesis (glucose synthesis) Cell wall- middle lamella- pectin; primary cell wall- cellulose; secondary cell wall- lignin j. Endosymbiont theory- all eukaryotic cells came from bacterial cells that lived together; proof= all chloroplasts and mitochondr ...
AP BIOLOGY EXAM REVIEW GUIDE
... Chloroplast- double membrane; site of photosynthesis (glucose synthesis) Cell wall- middle lamella- pectin; primary cell wall- cellulose; secondary cell wall- lignin j. Endosymbiont theory- all eukaryotic cells came from bacterial cells that lived together; proof= all chloroplasts and mitochondr ...
... Chloroplast- double membrane; site of photosynthesis (glucose synthesis) Cell wall- middle lamella- pectin; primary cell wall- cellulose; secondary cell wall- lignin j. Endosymbiont theory- all eukaryotic cells came from bacterial cells that lived together; proof= all chloroplasts and mitochondr ...
ap biology exam review guide
... i. Water potential= pressure potential plus pressure potential; water moves from high water potential to low water potential; solutes always lower water potential; pressure can increase or decrease depending on if it is negative or positive. j. Plant cells have pressure related to cell wall and vacu ...
... i. Water potential= pressure potential plus pressure potential; water moves from high water potential to low water potential; solutes always lower water potential; pressure can increase or decrease depending on if it is negative or positive. j. Plant cells have pressure related to cell wall and vacu ...
AP Exam review
... Cell wall- middle lamella- pectin; primary cell wall- cellulose; secondary cell wall- lignin j. Endosymbiont theory- all eukaryotic cells came from bacterial cells that lived together; proof= all chloroplasts and mitochondria have own DNA and are autonomous 3. Cell membrane (separates the internal ...
... Cell wall- middle lamella- pectin; primary cell wall- cellulose; secondary cell wall- lignin j. Endosymbiont theory- all eukaryotic cells came from bacterial cells that lived together; proof= all chloroplasts and mitochondria have own DNA and are autonomous 3. Cell membrane (separates the internal ...
Human body systems
... • WHITE BLOOD CELLS (LEUKOCYTES) – FIGHT BACTERIA AND VIRUSES BY ENTERING INFECTED TISSUE, DESTROYING BACTERIA/VIRUS AND ABSORB DEAD CELLS. ...
... • WHITE BLOOD CELLS (LEUKOCYTES) – FIGHT BACTERIA AND VIRUSES BY ENTERING INFECTED TISSUE, DESTROYING BACTERIA/VIRUS AND ABSORB DEAD CELLS. ...
MEMBRANES
... Sudoriferous Glands – exocrine gland that release sweat to the skin surface via ducts. 1. Eccrine (Merocrine) glands – excrete body waste, assist in temp regulation, deter bacterial growth a. located everywhere --- skin may contain 2-5 million per square inch b. sweat composition: 99% water, salt, m ...
... Sudoriferous Glands – exocrine gland that release sweat to the skin surface via ducts. 1. Eccrine (Merocrine) glands – excrete body waste, assist in temp regulation, deter bacterial growth a. located everywhere --- skin may contain 2-5 million per square inch b. sweat composition: 99% water, salt, m ...
v - edl.io
... Both layers get oxygen (O2) and get rid of carbon dioxide (CO2) by . (known as simple diffusion) Diffusion = movement of molecules from an area of concentration to an area of concentration. O2 outside is at higher in the water than inside the cells O2 diffuses from water cells. CO2is at a ...
... Both layers get oxygen (O2) and get rid of carbon dioxide (CO2) by . (known as simple diffusion) Diffusion = movement of molecules from an area of concentration to an area of concentration. O2 outside is at higher in the water than inside the cells O2 diffuses from water cells. CO2is at a ...
Tissues
... of differing heights, some not reaching the free surface; nuclei seen at different levels; may contain mucus-secreting cells and bear cilia. Cilia ...
... of differing heights, some not reaching the free surface; nuclei seen at different levels; may contain mucus-secreting cells and bear cilia. Cilia ...
lymphatic system text
... called lymphatic nodules. 1. Nonencapsulated lymph nodules (diffuse lymphatic tissue) 2. Nodules in lymph nodes 3. Nodules in spleenic white pulp * Some texts will identify the thymus as having nodular lymphatic tissue; however, this is not really correct if nodules are as described above. ...
... called lymphatic nodules. 1. Nonencapsulated lymph nodules (diffuse lymphatic tissue) 2. Nodules in lymph nodes 3. Nodules in spleenic white pulp * Some texts will identify the thymus as having nodular lymphatic tissue; however, this is not really correct if nodules are as described above. ...
Nervous System Lecture- Part II
... a. Extreme Longevity Neurons can live and function for a lifetime, over 100 years. b. Do Not Divide There are some exceptions as neural stem cells have been identified in certain areas of the CNS. c. High Metabolic Rate Neurons cannot survive for more than a few minutes without oxygen. 3. Structure ...
... a. Extreme Longevity Neurons can live and function for a lifetime, over 100 years. b. Do Not Divide There are some exceptions as neural stem cells have been identified in certain areas of the CNS. c. High Metabolic Rate Neurons cannot survive for more than a few minutes without oxygen. 3. Structure ...
Invertebrate Phylae
... 10. Cephalization – concentration of sense organs and nerve cells in the front of the body. 11. Hydrostatic Skeleton…annelids and certain cnidarians. Their muscles surround a fluid filled cavity that supports the muscles 12. Endoskeleton---structural support within the organism; echinoderms 13. Exos ...
... 10. Cephalization – concentration of sense organs and nerve cells in the front of the body. 11. Hydrostatic Skeleton…annelids and certain cnidarians. Their muscles surround a fluid filled cavity that supports the muscles 12. Endoskeleton---structural support within the organism; echinoderms 13. Exos ...
Types of Tissues
... The human body contains more than 200 types of cells that can all be classified into four types of tissues: epithelial, connective, muscle, and nervous. Epithelial tissues act as coverings controlling the movement of materials across the surface. Connective tissue integrates the various parts of the ...
... The human body contains more than 200 types of cells that can all be classified into four types of tissues: epithelial, connective, muscle, and nervous. Epithelial tissues act as coverings controlling the movement of materials across the surface. Connective tissue integrates the various parts of the ...
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.