'Plasma membranes' diaporamas de présentation

7.3 Cell Boundaries

7.3 Cell Boundaries. Fluid compartments in our bodies are separated by membranes. Composition of body fluids. Greater number of osmotically active particles. Some organisms have a CELL WALL. Plants (cellulose) Algae (polysaccharide) Fungi (-chitin) Prokaryotes(peptidoglycan).

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Dr. mohammad khatatbeh Slides of lecture #4 Transport across plasma membrane

Dr. mohammad khatatbeh Slides of lecture #4 Transport across plasma membrane. Transport across Plasma Membranes. Transport through plasma membranes. Passive transport modalities. -Simple diffusion : transport through lipid bilayer, transport through channels, Ficks law of diffusion.

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2.4.4: Define diffusion and osmosis

2.4.4: Define diffusion and osmosis Diffusion : The passive movement of particles from a region of high concentration to a region of low concentration until equilibrium is reached. (Molecules still move after equilibrium is reached) . 2.4.4: Diffusion. 2.4.4: Define diffusion and osmosis.

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Outline

Outline. Viruses Structure Classification Reproduction Prokaryotes Structure Reproduction Nutrition Bacteria Archaea. The Viruses. Viruses are noncellular and thus cannot be classified with cellular organisms Generally smaller than 200 nm in diameter Each type has at least two parts

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FERTILIZATION TO BLASTOCYST FORMATION

FERTILIZATION TO BLASTOCYST FORMATION. By Dr Samina Anjum. PREVIEW. FERTILIZATION CLEAVAGE BLASTOCYST FORMATION UTERUS AT THE TIME OF IMPLANTATION MENSTRUAL CYCLE. Fertilization is the process by which fusion of male and female gametes occurs in the ampullary region of the uterine tube.

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MEMBRANE LIPIDS, PROTEINS & CARBOHYDRATES

MEMBRANE LIPIDS, PROTEINS & CARBOHYDRATES. The nature of cell membranes Lipids in membranes Proteins in membranes Lipid-protein interactions Carbohydrate presence & roles. Cell membranes:. In the early part of the 20 th century very little was known about cell membranes either at

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The Cardiovascular System

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Fluid Mosaic Model

Fluid Mosaic Model. Figure 3.3. Functions of Membrane Proteins. Transport Enzymatic activity Receptors for signal transduction. Figure 3.4.1. Functions of Membrane Proteins. Intercellular adhesion Cell-cell recognition Attachment to cytoskeleton and extracellular matrix. Figure 3.4.2.

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FERTILIZATION

FERTILIZATION. By Dr Samina Anjum. Fertilization is the process by which fusion of male and female gametes occurs in the ampullary region of the uterine tube. Only 1% of the sperms deposited in the vagina enter the cervix.

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Fig. 6-7

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SHINGOLIPIDS/ SHINGOPHOSPHOLIPIDS

SHINGOLIPIDS/ SHINGOPHOSPHOLIPIDS. METABOLISM. Role of sphingolipids. Abundant component of myelin sheath (25% in humans) These lipids are in a continuous state of turnover, defects in this metabolism leads to various diseases.

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Blood Typing

Blood Typing. If you lose more than 15-30% of your blood, pallor and weakness will result. If you lose more than 15-30% of your blood, pallor and weakness will result. More than 30% will result in shock and possibly death.

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Membrane Structure Chapter 11

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BIO-CHEMICAL ENGINEERING

BIO-CHEMICAL ENGINEERING. What is Chemical Engineering. ?. What is Biochemical Engineering.

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Biology 201 Dr. Edwin DeMont

Biology 201 Dr. Edwin DeMont. Respiration. St. Francis Xavier University. Gas Exchange . Animals must supply the oxygen required for aerobic respiration and a remove the carbon dioxide. The process of gas exchange is called respiration. .

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Cell Communication

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Mammalian Lungs

Mammalian Lungs. List the features of the mammalian lung that adapt it to efficient gaseous exchange

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Structure of the Stomach

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