Dictyostelium discoideum, model organism, social amoeba: facts
... Dictyostelium discoideum (slime mold) are a free living amoebae whose natural habitat is the upper layer of soil rich in decaying organic material. Bacteria are the main source of food of the D. discoideum. When the food supply is abundant the slime mold organisms live in unicellar form. Once the fo ...
... Dictyostelium discoideum (slime mold) are a free living amoebae whose natural habitat is the upper layer of soil rich in decaying organic material. Bacteria are the main source of food of the D. discoideum. When the food supply is abundant the slime mold organisms live in unicellar form. Once the fo ...
the relations between dna, rna, and protein in normal embryonic cell
... used to show that the three time-synthesis curves were similar in pattern. Moreover, for the timed normal monkey kidney cells it was shown that similar high correlations existed between DNA and nuclear dry mass and between total nuclear nucleic acid and nuclear dry mass: there was no significant dif ...
... used to show that the three time-synthesis curves were similar in pattern. Moreover, for the timed normal monkey kidney cells it was shown that similar high correlations existed between DNA and nuclear dry mass and between total nuclear nucleic acid and nuclear dry mass: there was no significant dif ...
Plasma membrane
... active transport is accomplished by the use of carrier proteins remember, they are like doors that open and close by changing shape generally, each carrier protein has a specific shape that fits a specific molecule or ion when the proper molecule “binds” with the protein, cellular energy is used to ...
... active transport is accomplished by the use of carrier proteins remember, they are like doors that open and close by changing shape generally, each carrier protein has a specific shape that fits a specific molecule or ion when the proper molecule “binds” with the protein, cellular energy is used to ...
Chapter 5 : Homeostasis and Transport Lecture Notes
... 1. Cells that are expose to an Isotonic External environment Usually have no difficulty keeping the movement of water across the cell membrane in balance. 2. This is the case with the cells of vertebrate animals on land and most other organisms living in the sea. 3. Many cells function in a Hypotoni ...
... 1. Cells that are expose to an Isotonic External environment Usually have no difficulty keeping the movement of water across the cell membrane in balance. 2. This is the case with the cells of vertebrate animals on land and most other organisms living in the sea. 3. Many cells function in a Hypotoni ...
CHAPTER 6 HOMEOSTASIS AND TRANSPORT
... 1. Cells that are expose to an Isotonic External environment Usually have no difficulty keeping the movement of water across the cell membrane in balance. 2. This is the case with the cells of vertebrate animals on land and most other organisms living in the sea. 3. Many cells function in a Hypotoni ...
... 1. Cells that are expose to an Isotonic External environment Usually have no difficulty keeping the movement of water across the cell membrane in balance. 2. This is the case with the cells of vertebrate animals on land and most other organisms living in the sea. 3. Many cells function in a Hypotoni ...
500KB - NZQA
... roots. Carbon dioxide and water are joined together to create glucose; oxygen is a waste product. The end product, glucose, is used in the cell respiration to create energy the cell can use. Aerobic cell respiration is carried out by plants as well as animals. Glucose from photosynthesis, along with ...
... roots. Carbon dioxide and water are joined together to create glucose; oxygen is a waste product. The end product, glucose, is used in the cell respiration to create energy the cell can use. Aerobic cell respiration is carried out by plants as well as animals. Glucose from photosynthesis, along with ...
NCEA Level 2 Biology (91156) 2016
... roots. Carbon dioxide and water are joined together to create glucose; oxygen is a waste product. The end product, glucose, is used in the cell respiration to create energy the cell can use. Aerobic cell respiration is carried out by plants as well as animals. Glucose from photosynthesis, along with ...
... roots. Carbon dioxide and water are joined together to create glucose; oxygen is a waste product. The end product, glucose, is used in the cell respiration to create energy the cell can use. Aerobic cell respiration is carried out by plants as well as animals. Glucose from photosynthesis, along with ...
Biology EOC Review - Lyman High School
... being swallowed, the nitrites are reduced to nitric oxide by stomach acid. Nitric oxide, an important signaling molecule, triggers an increase in the flow of blood to the stomach, helping to renew and thicken its mucus lining. When Petersson gave rats an antibacterial mouthwash to kill the oral bact ...
... being swallowed, the nitrites are reduced to nitric oxide by stomach acid. Nitric oxide, an important signaling molecule, triggers an increase in the flow of blood to the stomach, helping to renew and thicken its mucus lining. When Petersson gave rats an antibacterial mouthwash to kill the oral bact ...
Lab Quiz 2
... Define catalyst, enzyme, activation energy, denaturation What is benzoquinone? What are the substrates for the enzyme catechol oxidase? What is the effects of temperature and pH on the rate of chemical reactions in general? What is the lock and key theory? P. 104 Fig. 8-2 S 2 & Append. 2 p752-754 (b ...
... Define catalyst, enzyme, activation energy, denaturation What is benzoquinone? What are the substrates for the enzyme catechol oxidase? What is the effects of temperature and pH on the rate of chemical reactions in general? What is the lock and key theory? P. 104 Fig. 8-2 S 2 & Append. 2 p752-754 (b ...
Science 10 Review Assignment
... ______a. a series of small interconnected tubes that branch from the nuclear envelope ______b. an organelle that contains the genetic material of the cell and directs all cell activities ______c. a structure containing chlorophyll found in plants and some protists ______d. a large, membrane-bound st ...
... ______a. a series of small interconnected tubes that branch from the nuclear envelope ______b. an organelle that contains the genetic material of the cell and directs all cell activities ______c. a structure containing chlorophyll found in plants and some protists ______d. a large, membrane-bound st ...
Embryonic stem cells
... Are created from embryos. A living single stem cell from the embryo is placed in a Petri dish (without agar) and provided with nutrients and growth factors that simulate those found in the womb. The resulting cell line will continue to divide provided it receives sufficient chemical signals signalin ...
... Are created from embryos. A living single stem cell from the embryo is placed in a Petri dish (without agar) and provided with nutrients and growth factors that simulate those found in the womb. The resulting cell line will continue to divide provided it receives sufficient chemical signals signalin ...
Fundamentals of Anatomy and Physiology, Second Edition
... – Structure, enzymes or catalysts, immune response ...
... – Structure, enzymes or catalysts, immune response ...
CELLS!
... ★ Receives proteins and lipids from the E.R. ★ Abundant in glandular cells ★ Modifies and sorts proteins ★ Packages proteins into membrane-bound structures, called vesicles, to be sent to appropriate destinations ★ Similar to a post office Structure ...
... ★ Receives proteins and lipids from the E.R. ★ Abundant in glandular cells ★ Modifies and sorts proteins ★ Packages proteins into membrane-bound structures, called vesicles, to be sent to appropriate destinations ★ Similar to a post office Structure ...
Minireview
... the E box and exert transcriptional activation through binding to this site. It is noteworthy that a number of cell-cycle genes involved in either G2-M or G1-S transitions contain E boxes in their promoters. One cell-cycle gene that is under direct CLOCK:BMAL1 control is Wee1, whose promoter contain ...
... the E box and exert transcriptional activation through binding to this site. It is noteworthy that a number of cell-cycle genes involved in either G2-M or G1-S transitions contain E boxes in their promoters. One cell-cycle gene that is under direct CLOCK:BMAL1 control is Wee1, whose promoter contain ...
Cells and reproduction Jordanhill School S1 Science
... The sex cells are the cells that fuse together during sexual reproduction to form a new cell that will eventually form a new organism. The female sex cell is called the egg or ovum and is produced in the ovary. These round cells are the largest in the human body. They have a cell membrane, cytoplasm ...
... The sex cells are the cells that fuse together during sexual reproduction to form a new cell that will eventually form a new organism. The female sex cell is called the egg or ovum and is produced in the ovary. These round cells are the largest in the human body. They have a cell membrane, cytoplasm ...
Recombination, Bacteriophages, and Horizontal Gene Transfer
... lytic or lysogenic phage is referred to as a temperate phage • A bacterium containing a full set of phage genes is a lysogen • The process of infecting a bacterial culture with a temperate phage is called ...
... lytic or lysogenic phage is referred to as a temperate phage • A bacterium containing a full set of phage genes is a lysogen • The process of infecting a bacterial culture with a temperate phage is called ...
Cell Biology
... Cell Theory • modern Cell Theory – All living things are composed of cells. – Cells are the units of structure and function in living things. – New cells are produced from pre-existing cells. ...
... Cell Theory • modern Cell Theory – All living things are composed of cells. – Cells are the units of structure and function in living things. – New cells are produced from pre-existing cells. ...
Understanding Your Karyotype
... To understand how our cells might end up with too many or too few chromosomes, we need to know how the cells normally get 46 chromosomes. First we need to understand meiosis. Meiosis is the cell division process that produces egg and sperm cells (gametes), which normally have 23 chromosomes each. Pl ...
... To understand how our cells might end up with too many or too few chromosomes, we need to know how the cells normally get 46 chromosomes. First we need to understand meiosis. Meiosis is the cell division process that produces egg and sperm cells (gametes), which normally have 23 chromosomes each. Pl ...
Single-celled Primary Producers
... • May aggregate to form strands or dense mats – Long strands of Lyngbya More Cyanobacteria • Reproduce by cell fission (usually) • Some are nitrogen fixators (like legumes) – Utilized gaseous N3 • Some symbiotic relationships with other marine organisms, even diatoms – Nitrogen fixing species with t ...
... • May aggregate to form strands or dense mats – Long strands of Lyngbya More Cyanobacteria • Reproduce by cell fission (usually) • Some are nitrogen fixators (like legumes) – Utilized gaseous N3 • Some symbiotic relationships with other marine organisms, even diatoms – Nitrogen fixing species with t ...
Comprehensive Review Packet - 2013-2014
... (4) DNA is double stranded, has deoxyribose, A, G, C, T (5) RNA is single stranded, has ribose, A, G, C, U (6) mRNA- copies genetic message; rRNA- attaches mRNA and makes up ribosomes (most common);tRNA- carries amino acids; DNA- carries genetic code 6. Enzymes a. Biological catalysts (made of prote ...
... (4) DNA is double stranded, has deoxyribose, A, G, C, T (5) RNA is single stranded, has ribose, A, G, C, U (6) mRNA- copies genetic message; rRNA- attaches mRNA and makes up ribosomes (most common);tRNA- carries amino acids; DNA- carries genetic code 6. Enzymes a. Biological catalysts (made of prote ...
Slide 26 - Sigma
... phosphorylated by JAK kinases in response to cytokine activation of a cell surface receptor tyrosine kinase. Upon activation, the STATs dimerize and are localized to the nucleus where they activate transcription of cytokine-responsive genes. There are at least three JAK kinases and at least six STAT ...
... phosphorylated by JAK kinases in response to cytokine activation of a cell surface receptor tyrosine kinase. Upon activation, the STATs dimerize and are localized to the nucleus where they activate transcription of cytokine-responsive genes. There are at least three JAK kinases and at least six STAT ...
Unit 3 Cells and the Microscope
... 5. Arm-part of the microscope that you carry the microscope with. 6. Coarse Adjustment Knob-large, round knob on the side of the microscope used for focusing the specimen; it may move either the stage or the upper part of the microscope. 7. Fine Adjustment Knob-small, round knob on the side of the m ...
... 5. Arm-part of the microscope that you carry the microscope with. 6. Coarse Adjustment Knob-large, round knob on the side of the microscope used for focusing the specimen; it may move either the stage or the upper part of the microscope. 7. Fine Adjustment Knob-small, round knob on the side of the m ...
Single-celled Primary Producers Diversity of Primary Producers
... • May aggregate to form strands or dense mats – Long strands of Lyngbya More Cyanobacteria • Reproduce by cell fission (usually) • Some are nitrogen fixators (like legumes) – Utilized gaseous N3 • Some symbiotic relationships with other marine organisms, even diatoms – Nitrogen fixing species with t ...
... • May aggregate to form strands or dense mats – Long strands of Lyngbya More Cyanobacteria • Reproduce by cell fission (usually) • Some are nitrogen fixators (like legumes) – Utilized gaseous N3 • Some symbiotic relationships with other marine organisms, even diatoms – Nitrogen fixing species with t ...
Cell cycle
The cell cycle or cell-division cycle is the series of events that take place in a cell leading to its division and duplication (replication) that produces two daughter cells. In prokaryotes which lack a cell nucleus, the cell cycle occurs via a process termed binary fission. In cells with a nucleus, as in eukaryotes, the cell cycle can be divided into three periods: interphase, the mitotic (M) phase, and cytokinesis. During interphase, the cell grows, accumulating nutrients needed for mitosis, preparing it for cell division and duplicating its DNA. During the mitotic phase, the cell splits itself into two distinct daughter cells. During the final stage, cytokinesis, the new cell is completely divided. To ensure the proper division of the cell, there are control mechanisms known as cell cycle checkpoints.The cell-division cycle is a vital process by which a single-celled fertilized egg develops into a mature organism, as well as the process by which hair, skin, blood cells, and some internal organs are renewed. After cell division, each of the daughter cells begin the interphase of a new cycle. Although the various stages of interphase are not usually morphologically distinguishable, each phase of the cell cycle has a distinct set of specialized biochemical processes that prepare the cell for initiation of cell division.