• Cells were discovered in 1665 by Robert Hooke • Early studies of
... • Most eukaryotic cells possess a single nucleus • Nucleolus – region where ribosomal RNA synthesis takes place • Nuclear envelope – 2 phospholipid bilayers – Nuclear pores – control passage in and out • In eukaryotes, the DNA is divided into multiple linear chromosomes – Chromatin is chromosomes pl ...
... • Most eukaryotic cells possess a single nucleus • Nucleolus – region where ribosomal RNA synthesis takes place • Nuclear envelope – 2 phospholipid bilayers – Nuclear pores – control passage in and out • In eukaryotes, the DNA is divided into multiple linear chromosomes – Chromatin is chromosomes pl ...
Simplified microbiology
... the DNA in the cell makes a copy of itself. The two copies separate in the cell and the cell grows two new cell membranes and two new cell walls through its middle, effectively cutting the cell in half, to make two cells. This is asexual (the “a” in front meaning without) reproduction because both t ...
... the DNA in the cell makes a copy of itself. The two copies separate in the cell and the cell grows two new cell membranes and two new cell walls through its middle, effectively cutting the cell in half, to make two cells. This is asexual (the “a” in front meaning without) reproduction because both t ...
Cell Signaling
... proteins in order to activate them -Protein phosphatase: enzymes that remove phosphates from proteins to deactivate them -Phosphorylation cascade: a series of different molecules are phosphorylated in turn to bring about a cellular response ...
... proteins in order to activate them -Protein phosphatase: enzymes that remove phosphates from proteins to deactivate them -Phosphorylation cascade: a series of different molecules are phosphorylated in turn to bring about a cellular response ...
cells - Teacherpage
... Prokaryotes vs. Eukaryotes • Eukaryotes – CONTAIN A NUCLEUS, cell membrane, cytoplasm – Generally larger and more complex – Contains membrane bound organelles (internal membranes) – Genetic material found in nucleus – Examples: plants, animals, fungi, and protists ...
... Prokaryotes vs. Eukaryotes • Eukaryotes – CONTAIN A NUCLEUS, cell membrane, cytoplasm – Generally larger and more complex – Contains membrane bound organelles (internal membranes) – Genetic material found in nucleus – Examples: plants, animals, fungi, and protists ...
6 Active Transport 0809
... large particles (including other cells) External materials are enclosed by part of the cell, forming a pouch The pouch pinches off cell membrane & becomes a membrane bound organelle called a vesicle Vesicles can fuse with lysosomes to digests contents. Two kinds of Endocytosis: ...
... large particles (including other cells) External materials are enclosed by part of the cell, forming a pouch The pouch pinches off cell membrane & becomes a membrane bound organelle called a vesicle Vesicles can fuse with lysosomes to digests contents. Two kinds of Endocytosis: ...
Ch 7 Cell Structure and Function
... – Inside the nuclear envelope is a combination of DNA and proteins called Chromatin – When the cell is about to divide the chromatic coils up and becomes Chromosomes ...
... – Inside the nuclear envelope is a combination of DNA and proteins called Chromatin – When the cell is about to divide the chromatic coils up and becomes Chromosomes ...
Plasma Membrane (cell membrane)
... 3. They are self replicating and the most common microbodies in the cell ...
... 3. They are self replicating and the most common microbodies in the cell ...
Cell Theory
... composed of one or more cells • 2. The cell is the basic unit of life in all living things • 3. All cells come from existing cells ...
... composed of one or more cells • 2. The cell is the basic unit of life in all living things • 3. All cells come from existing cells ...
The purpose of digestion is to do what? Break down large molecules
... by chemical changes such as saliva and gastric acid. Chewing is a physical change and only breaks food into smaller pieces not molecules. What process breaks down carbohydrates into simple sugars? Digestion How can you support/prove the statement, “Digestion produces chemical changes?” Digestion pro ...
... by chemical changes such as saliva and gastric acid. Chewing is a physical change and only breaks food into smaller pieces not molecules. What process breaks down carbohydrates into simple sugars? Digestion How can you support/prove the statement, “Digestion produces chemical changes?” Digestion pro ...
Make protein for the cell.
... between cell and within cell. Breaks down some medicines. Makes lipids (fat). Packages proteins for release from the cell. Rough E.R. has ribosomes on it. Smooth E.R. does not have ribosomes on it. **Provides a system of transport from the nucleus to the cell.** ...
... between cell and within cell. Breaks down some medicines. Makes lipids (fat). Packages proteins for release from the cell. Rough E.R. has ribosomes on it. Smooth E.R. does not have ribosomes on it. **Provides a system of transport from the nucleus to the cell.** ...
File
... 2. How do you think plant cells differ from animal cells? (Hint: What can plants do that animals cannot?) Gizmo Warm-up The Cell Structure Gizmo™ allows you to look at typical animal and plant cells under a microscope. On the ANIMAL CELL tab, click Sample to take a sample of an animal cell. Use the ...
... 2. How do you think plant cells differ from animal cells? (Hint: What can plants do that animals cannot?) Gizmo Warm-up The Cell Structure Gizmo™ allows you to look at typical animal and plant cells under a microscope. On the ANIMAL CELL tab, click Sample to take a sample of an animal cell. Use the ...
Transfecting Cells
... DNA to separate them from cells that did not. 1. Fluorescence sorting a. GFP expression allows you to find the fluorescent cells that have incorporated the DNA 2. Drug selection a. Various antibiotic resistance genes used i. Geneticin/G418, blasticidin, puromycin, bleomycin, hygromycin B. Extrachrom ...
... DNA to separate them from cells that did not. 1. Fluorescence sorting a. GFP expression allows you to find the fluorescent cells that have incorporated the DNA 2. Drug selection a. Various antibiotic resistance genes used i. Geneticin/G418, blasticidin, puromycin, bleomycin, hygromycin B. Extrachrom ...
The Cell Theory - Net Start Class
... The 3 Basic Components of the Cell Theory were now complete: ...
... The 3 Basic Components of the Cell Theory were now complete: ...
Comparing Prokaryotic and Eukaryotic Cells Cell walls of Bacteria
... Comparing Prokaryotic and Eukaryotic Cells Classification of prokaryotic cellular features: Variant (or NOT common to all) Cell Wall (multiple barrier support themes) Endospores (heavy-duty life support strategy) Bacterial Flagella (appendages for movement) Gas Vesicles (buoyancy compensatio ...
... Comparing Prokaryotic and Eukaryotic Cells Classification of prokaryotic cellular features: Variant (or NOT common to all) Cell Wall (multiple barrier support themes) Endospores (heavy-duty life support strategy) Bacterial Flagella (appendages for movement) Gas Vesicles (buoyancy compensatio ...
Biology Notes: Organelles of the Cell
... _____________________________________________________________________________________________________ 2) Name 7 organelles that can be found within the cytoplasm. _____________________________________________________________________________________________________ ________________________________ ...
... _____________________________________________________________________________________________________ 2) Name 7 organelles that can be found within the cytoplasm. _____________________________________________________________________________________________________ ________________________________ ...
PowerPoint Presentation - Chapter 12 The Cell Cycle
... At telophase, daughter nuclei begin to form at the two poles. Cytokinesis, division of the cytoplasm, is usually well underway by late telophase. In animal cells, cytokinesis involves the formation of a cleavage furrow, which pinches the cell in two. In plant cells, vesicles derived from the G ...
... At telophase, daughter nuclei begin to form at the two poles. Cytokinesis, division of the cytoplasm, is usually well underway by late telophase. In animal cells, cytokinesis involves the formation of a cleavage furrow, which pinches the cell in two. In plant cells, vesicles derived from the G ...
PowerPoint Presentation - Modeling the Organism: The Cell in
... it switch (and why)? How is switching repressed in certain cells? Why is this important? •(After lab) Explain how a cell senses the presence of a mating partner, and what happens once it shows interest? ...
... it switch (and why)? How is switching repressed in certain cells? Why is this important? •(After lab) Explain how a cell senses the presence of a mating partner, and what happens once it shows interest? ...
Cell Organelles PPT - Gulfport School District
... that form the nuclear envelope. Nuclear pores in the envelope control movement of molecules between nucleus and cytoplasm. In the nucleus, DNA combines with proteins to form chromatin in long, thin threads called chromosomes. Gene’s are the cells smaller hereditary units. There are many genes on ind ...
... that form the nuclear envelope. Nuclear pores in the envelope control movement of molecules between nucleus and cytoplasm. In the nucleus, DNA combines with proteins to form chromatin in long, thin threads called chromosomes. Gene’s are the cells smaller hereditary units. There are many genes on ind ...
Warm
... Where does mechanical digestion begin during the process of digestion? A. Teeth B. Saliva C. Stomach ...
... Where does mechanical digestion begin during the process of digestion? A. Teeth B. Saliva C. Stomach ...
CHAPTER 7 HOMEOSTASIS AND TRANSPORT Worksheet 1. A
... 33. When water enters the cell, it creates pressure. This pressure is called _____________________________ _______________________________________________. 34. A cell does not expend __________________________ when diffusion takes place. 35. __________________________ is the most common solvent in c ...
... 33. When water enters the cell, it creates pressure. This pressure is called _____________________________ _______________________________________________. 34. A cell does not expend __________________________ when diffusion takes place. 35. __________________________ is the most common solvent in c ...
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.