Unit 1 Higher Human Biology Summary Notes
... Embryonic stem cells The blastocyst consists of a ball of embryonic stem cells All of the genes in an embryonic stem cell have the potential to be switched on The cell is capable of differentiating into all of the cell types in the body (>200) Tissue/adult stem cells Found in skin and red bone marro ...
... Embryonic stem cells The blastocyst consists of a ball of embryonic stem cells All of the genes in an embryonic stem cell have the potential to be switched on The cell is capable of differentiating into all of the cell types in the body (>200) Tissue/adult stem cells Found in skin and red bone marro ...
Mitosis - TeacherWeb
... •Growth & activity •Cell double in size •Number of ribosomes & mitochondria double S Phase •Chromosome replication •DNA molecules duplicate G2 Phase •Final preparation for division •Spindle fibers assemble Mitosis •Actual cell division ...
... •Growth & activity •Cell double in size •Number of ribosomes & mitochondria double S Phase •Chromosome replication •DNA molecules duplicate G2 Phase •Final preparation for division •Spindle fibers assemble Mitosis •Actual cell division ...
1.Lecturenotes(fertilization
... - Outer cell mass - Trophoblastic Differentiation - The trophoblasts overlying the embryonic pole differentiate into cytotrophoblasts an inner layer of mitotically active mononuclear cells which shed cells to the outer protoplasmic mass of cells without cell boundaries known as syncytium or syncytio ...
... - Outer cell mass - Trophoblastic Differentiation - The trophoblasts overlying the embryonic pole differentiate into cytotrophoblasts an inner layer of mitotically active mononuclear cells which shed cells to the outer protoplasmic mass of cells without cell boundaries known as syncytium or syncytio ...
Chapter concepts
... - Outer cell mass - Trophoblastic Differentiation - The trophoblasts overlying the embryonic pole differentiate into cytotrophoblasts an inner layer of mitotically active mononuclear cells which shed cells to the outer protoplasmic mass of cells without cell boundaries known as syncytium or syncytio ...
... - Outer cell mass - Trophoblastic Differentiation - The trophoblasts overlying the embryonic pole differentiate into cytotrophoblasts an inner layer of mitotically active mononuclear cells which shed cells to the outer protoplasmic mass of cells without cell boundaries known as syncytium or syncytio ...
Midterm Review: Living Environment Enzymes
... Place a 10% salt solution under the cover slip. This is done by putting a drop of salt solution next to one edge of the cover slip, then absorbing water from the opposite side of the slip using a paper towel. See below: ...
... Place a 10% salt solution under the cover slip. This is done by putting a drop of salt solution next to one edge of the cover slip, then absorbing water from the opposite side of the slip using a paper towel. See below: ...
unit 6. living things/biosphere
... Multicellular: living thing have many different cells. Example: plants and animals. Cells in multicellular living things are organised in levels. Cells: are specialised: they have specific functions. Each type has a unique shape and structure. Example: blood cells, muscle cell, neurons… Tissues: are ...
... Multicellular: living thing have many different cells. Example: plants and animals. Cells in multicellular living things are organised in levels. Cells: are specialised: they have specific functions. Each type has a unique shape and structure. Example: blood cells, muscle cell, neurons… Tissues: are ...
Cells and Systems Notes
... Liver - Makes bile which breaks down fats and some blood proteins. Helps the small intestine in digestion. Gall Bladder - It stores and releases bile into the small intestine. Pancreas - Enzymes from the pancreas help in the digestion of carbohydrates, fats and proteins in the small intestine. Small ...
... Liver - Makes bile which breaks down fats and some blood proteins. Helps the small intestine in digestion. Gall Bladder - It stores and releases bile into the small intestine. Pancreas - Enzymes from the pancreas help in the digestion of carbohydrates, fats and proteins in the small intestine. Small ...
What is a Cell - QuestGarden.com
... the original cell. This process is called ____________ ___________________. Although a cell is small, it is not stupid – before it _____________________ it makes an extra copy of everything in the ____________________. This means the two daughter cells have a __________________ nucleus. This is impo ...
... the original cell. This process is called ____________ ___________________. Although a cell is small, it is not stupid – before it _____________________ it makes an extra copy of everything in the ____________________. This means the two daughter cells have a __________________ nucleus. This is impo ...
Fertilization and Development Section 39-4 pgs 1016-1024
... The fetus _________________________ in mass, and the lungs and other organs undergo a series of changes that prepare them for life outside the uterus. ...
... The fetus _________________________ in mass, and the lungs and other organs undergo a series of changes that prepare them for life outside the uterus. ...
1.1 Cells – structure and function
... You, like many other organisms including plants, started life as a single cell – a fertilised egg. This divides and forms an embryo. Cells become specialised to perform different functions. This is called differentiation (becoming different). Some examples of specialised cells are shown below. (a) t ...
... You, like many other organisms including plants, started life as a single cell – a fertilised egg. This divides and forms an embryo. Cells become specialised to perform different functions. This is called differentiation (becoming different). Some examples of specialised cells are shown below. (a) t ...
Multicellular Organisms National 5 Biology Overview Multicellular
... 6 The need for transport a. Plant transport systems i. Leaf structure to include upper epidermis, palisade mesophyll, spongy mesophyll, vein, lower epidermis, guard cells and stomata. ii. Other parts of the plant involved in water transport including root hairs and xylem vessels. Water minerals are ...
... 6 The need for transport a. Plant transport systems i. Leaf structure to include upper epidermis, palisade mesophyll, spongy mesophyll, vein, lower epidermis, guard cells and stomata. ii. Other parts of the plant involved in water transport including root hairs and xylem vessels. Water minerals are ...
Biology Review - s3.amazonaws.com
... fermentation such an important process to cells? • It allows glycolysis to continue to produce a small amount of ATP when oxygen is unavailable. ...
... fermentation such an important process to cells? • It allows glycolysis to continue to produce a small amount of ATP when oxygen is unavailable. ...
FULL TEXT
... Nervous tissue is the most complicated and complex system organized in the human body. It is composed of over a trillion nerve cells (neurons) that communicate with each other and coordinate their activities. It controls and integrates the functional activity of organs and systems. Nervous tissue is ...
... Nervous tissue is the most complicated and complex system organized in the human body. It is composed of over a trillion nerve cells (neurons) that communicate with each other and coordinate their activities. It controls and integrates the functional activity of organs and systems. Nervous tissue is ...
Summary of Human systems Human Body Systems Overview
... Immune cells are made in the bone marrow and mature either in the bone marrow (B cells) or in the thymus gland (T cells). These cells are very specialized, with each type capable of recognizing one specific antigen (cell identification markers) and destroying that foreign cell. Other immune cells (m ...
... Immune cells are made in the bone marrow and mature either in the bone marrow (B cells) or in the thymus gland (T cells). These cells are very specialized, with each type capable of recognizing one specific antigen (cell identification markers) and destroying that foreign cell. Other immune cells (m ...
Review Guide for Living Environment Written Assessment
... Compare/contrast natural and acquired immunity. Define the term PATHOGEN. List examples of various pathogens. Define the term ANTIGEN. Define the term ANTIBODY and explain how and when antibodies are formed in your bodies. QUESTIONS 1. What is meant by “disease”? 2. Explain the difference be ...
... Compare/contrast natural and acquired immunity. Define the term PATHOGEN. List examples of various pathogens. Define the term ANTIGEN. Define the term ANTIBODY and explain how and when antibodies are formed in your bodies. QUESTIONS 1. What is meant by “disease”? 2. Explain the difference be ...
B2 Knowledge Powerpoint
... Embryonic stem cells can 1. Technology could be used come from lelover illegally. embryos from ferBlity 2. Risk of the unknown – long treatments. term effects may not be Risk of rejecBon if not shown for years. from a paBents own stem cells. Could lead to tumours forming. ...
... Embryonic stem cells can 1. Technology could be used come from lelover illegally. embryos from ferBlity 2. Risk of the unknown – long treatments. term effects may not be Risk of rejecBon if not shown for years. from a paBents own stem cells. Could lead to tumours forming. ...
Cells - WordPress.com
... Your unique DNA sequence can be analysed from a body fluid sample. Forensic scientists can match the DNA taken from a crime scene with suspects DNA profiles to determine who committed the crime. ...
... Your unique DNA sequence can be analysed from a body fluid sample. Forensic scientists can match the DNA taken from a crime scene with suspects DNA profiles to determine who committed the crime. ...
Cells and Cellular Organization
... membrane is made of phospholipids, which makes sense because the membrane must be resistant to breakdown by water, which surrounds the cell. Selectively permeable. ...
... membrane is made of phospholipids, which makes sense because the membrane must be resistant to breakdown by water, which surrounds the cell. Selectively permeable. ...
Presentations : Cells
... Organism • A human body is made up of different organs such as the heart, liver and stomach. • Each organ has several sets of tissues working together to allow it to function. • These organs work together and make the five main organ systems in your body – the digestive system, the circulatory syste ...
... Organism • A human body is made up of different organs such as the heart, liver and stomach. • Each organ has several sets of tissues working together to allow it to function. • These organs work together and make the five main organ systems in your body – the digestive system, the circulatory syste ...
Cell Unit
... protists live in moist surroundings. In general, the protist kingdom includes organisms whose cells have a nucleus enclosed by a membrane and who do not fit into the other kingdoms. ...
... protists live in moist surroundings. In general, the protist kingdom includes organisms whose cells have a nucleus enclosed by a membrane and who do not fit into the other kingdoms. ...
Chapter 23
... Cleavage occurs thirty hours after conception. The zygote begins to undergo mitosis, becoming many cells, with each division making the cells smaller and smaller. 6. Distinguish between a morula and a blastocyst. A morula is a solid ball of sixteen cells that occurs after about three days. A blastoc ...
... Cleavage occurs thirty hours after conception. The zygote begins to undergo mitosis, becoming many cells, with each division making the cells smaller and smaller. 6. Distinguish between a morula and a blastocyst. A morula is a solid ball of sixteen cells that occurs after about three days. A blastoc ...
animals bio final jeopardy
... the amount of light in their environment using groups of cells called a. Nerve cords ...
... the amount of light in their environment using groups of cells called a. Nerve cords ...
Chapter 3b
... diminished, mucous starts to build up in the small airways making it harder for the smoker to breathe and causing the characteristic smokers cough in order to clear out the airways. Eventually though, the ciliated columnar cells are totally displaced. As can be seen below ominous changes have taken ...
... diminished, mucous starts to build up in the small airways making it harder for the smoker to breathe and causing the characteristic smokers cough in order to clear out the airways. Eventually though, the ciliated columnar cells are totally displaced. As can be seen below ominous changes have taken ...
Embryonic stem cell
Embryonic stem cells (ES cells) are pluripotent stem cells derived from the inner cell mass of a blastocyst, an early-stage preimplantation embryo. Human embryos reach the blastocyst stage 4–5 days post fertilization, at which time they consist of 50–150 cells. Isolating the embryoblast or inner cell mass (ICM) results in destruction of the blastocyst, which raises ethical issues, including whether or not embryos at the pre-implantation stage should be considered to have the same moral or legal status as more developed human beings.Human ES cells measure approximately 14 μm while mouse ES cells are closer to 8 μm.