Grade 7
... Describe the basic structures of an animal cell, including nucleus, cytoplasm, mitochondria and cell membrane, and how they function to support life. Structure & Function of nucleus Structure & Function of cytoplasm Structure & Function of mitochondria Structure & Function of cell membrane Describe ...
... Describe the basic structures of an animal cell, including nucleus, cytoplasm, mitochondria and cell membrane, and how they function to support life. Structure & Function of nucleus Structure & Function of cytoplasm Structure & Function of mitochondria Structure & Function of cell membrane Describe ...
Transport-cell membrane
... Facilitated Diffusion • Uses specific protein pores in the cell membrane to move certain “large” molecules from high concentration to low concentration. • Used for transport of water soluble molecules (hydrophillic). Ex: ions, amino acids (small proteins), and sugars • Carrier Protein - protein rec ...
... Facilitated Diffusion • Uses specific protein pores in the cell membrane to move certain “large” molecules from high concentration to low concentration. • Used for transport of water soluble molecules (hydrophillic). Ex: ions, amino acids (small proteins), and sugars • Carrier Protein - protein rec ...
Cells - Tuckahoe Common School District
... • Osmosis is the diffusion of water into or out of a cell. • Both diffusion and osmosis do not require the cell to use up it’s energy. ...
... • Osmosis is the diffusion of water into or out of a cell. • Both diffusion and osmosis do not require the cell to use up it’s energy. ...
The Modification of a Germ Cell to Form a
... all eggs. This acts to protect the egg. • Eggs that are deposited in water have a jelly-like coating that surrounds the egg (frogs eggs) • Eggs that are deposited on land have particularly elaborate envelopes. The eggs of birds have a vitelline envelope, a fibrous layer, an outer layer of albumin (e ...
... all eggs. This acts to protect the egg. • Eggs that are deposited in water have a jelly-like coating that surrounds the egg (frogs eggs) • Eggs that are deposited on land have particularly elaborate envelopes. The eggs of birds have a vitelline envelope, a fibrous layer, an outer layer of albumin (e ...
Chapter 3, Section 1
... The cell theory grew out of the work of many scientists and improvements in the microscope. • Many scientists contributed to the cell theory. • More was learned about cells as microscopes improved. • The cell theory is a unifying concept of biology. ...
... The cell theory grew out of the work of many scientists and improvements in the microscope. • Many scientists contributed to the cell theory. • More was learned about cells as microscopes improved. • The cell theory is a unifying concept of biology. ...
CELL TRANSPORT
... plasma membrane. This is how many hormones are secreted and how nerve cells communicate with each other. ...
... plasma membrane. This is how many hormones are secreted and how nerve cells communicate with each other. ...
Organelle Presentations
... Cable Bridge- the large support beams hold the structure up Microtubules and the cables help stabilize the structure (Intermediate filaments, and Microfilaments) - Also comparable to the human skeletal system. ...
... Cable Bridge- the large support beams hold the structure up Microtubules and the cables help stabilize the structure (Intermediate filaments, and Microfilaments) - Also comparable to the human skeletal system. ...
Cell Transport Notes PP
... collect water flowing in and pump it out to prevent them from over-expanding. •Salt water fish pump salt out of their specialized gills so they do not dehydrate. •Animal cells are bathed in blood. Kidneys keep the blood isotonic by remove excess salt and water. ...
... collect water flowing in and pump it out to prevent them from over-expanding. •Salt water fish pump salt out of their specialized gills so they do not dehydrate. •Animal cells are bathed in blood. Kidneys keep the blood isotonic by remove excess salt and water. ...
Test 1 answers_ marksheme
... a) List two features that are common to both prokaryotic and eukaryotic cells 1. cell membrane 2. cytoplasm 3. ribosomes 4. DNA I also allowed flagella as some prokaryotic cells and some eukaryotic cells can have these but all of either do not. If wording had ask common to all pro and euk cells then ...
... a) List two features that are common to both prokaryotic and eukaryotic cells 1. cell membrane 2. cytoplasm 3. ribosomes 4. DNA I also allowed flagella as some prokaryotic cells and some eukaryotic cells can have these but all of either do not. If wording had ask common to all pro and euk cells then ...
File
... of mitosis should be known. To avoid confusion in terminology, teachers are encouraged to refer to the two parts of a chromosome as sister chromatids, while they are attached to each other by a centromere in the early stages of mitosis. From anaphase onwards, when sister chromatids have separated to ...
... of mitosis should be known. To avoid confusion in terminology, teachers are encouraged to refer to the two parts of a chromosome as sister chromatids, while they are attached to each other by a centromere in the early stages of mitosis. From anaphase onwards, when sister chromatids have separated to ...
Animal Cell 3-Part Cards - Montessori for Learning
... Laminate for durability. Cut apart description and labels from 3 part cards. 2. As an introductory lesson, students can match the correct picture to the control card and then find the label and description that matches the correct picture. *** Students can actually place the picture on top of the pi ...
... Laminate for durability. Cut apart description and labels from 3 part cards. 2. As an introductory lesson, students can match the correct picture to the control card and then find the label and description that matches the correct picture. *** Students can actually place the picture on top of the pi ...
Diffusion, Osmosis, And Some Others…
... • Lastly, Carbohydrates also are found within the membrane – They attach to membrane proteins and serve as identification tags – This allows cells to cell membrane distinguish one type of cell from another ...
... • Lastly, Carbohydrates also are found within the membrane – They attach to membrane proteins and serve as identification tags – This allows cells to cell membrane distinguish one type of cell from another ...
5.1 The Cell Cycle
... Cells divide at different rates. • The rate of cell division varies with the need for those types of cells. ...
... Cells divide at different rates. • The rate of cell division varies with the need for those types of cells. ...
cell membrane - Cloudfront.net
... E. Facilitated Diffusion • Molecules, that cannot diffuse across the cell membrane’s lipid bilayer on their own, can move With the help of protein channels move from high to low concentration • Molecules still ___________________ Facilitated Diffusion Section 7-3 ...
... E. Facilitated Diffusion • Molecules, that cannot diffuse across the cell membrane’s lipid bilayer on their own, can move With the help of protein channels move from high to low concentration • Molecules still ___________________ Facilitated Diffusion Section 7-3 ...
Build your own cell
... the nose and wafting it to the back of the throat so that it can be swallowed. Cytoplasm A jelly-like substance where many of the cell’s reactions occur. Lysosomes Break down old proteins and recycle them. Mitochondria Produce energy in a useful form for the rest of the cell. Nucleus Contains geneti ...
... the nose and wafting it to the back of the throat so that it can be swallowed. Cytoplasm A jelly-like substance where many of the cell’s reactions occur. Lysosomes Break down old proteins and recycle them. Mitochondria Produce energy in a useful form for the rest of the cell. Nucleus Contains geneti ...
Cells
... • Animals - cytokinesis (cleavage) appearance of cleavage furrow in cell surface near old metaphase plate. • Cytoplasmic side of cleavage furrow contractile ring of actin microfilaments and motor protein myosin form. • Contraction of ring pinches cell in 2. ...
... • Animals - cytokinesis (cleavage) appearance of cleavage furrow in cell surface near old metaphase plate. • Cytoplasmic side of cleavage furrow contractile ring of actin microfilaments and motor protein myosin form. • Contraction of ring pinches cell in 2. ...
The Cell Membrane
... penetrate lipid bilayer, usually across whole membrane transmembrane protein ex: transport proteins ...
... penetrate lipid bilayer, usually across whole membrane transmembrane protein ex: transport proteins ...
Cell nucleus
In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel) is a membrane-enclosed organelle found in eukaryotic cells. Eukaryotes usually have a single nucleus, but a few cell types have no nuclei, and a few others have many.Cell nuclei contain most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes. The genes within these chromosomes are the cell's nuclear genome. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression—the nucleus is, therefore, the control center of the cell. The main structures making up the nucleus are the nuclear envelope, a double membrane that encloses the entire organelle and isolates its contents from the cellular cytoplasm, and the nucleoskeleton (which includes nuclear lamina), a network within the nucleus that adds mechanical support, much like the cytoskeleton, which supports the cell as a whole.Because the nuclear membrane is impermeable to large molecules, nuclear pores are required that regulate nuclear transport of molecules across the envelope. The pores cross both nuclear membranes, providing a channel through which larger molecules must be actively transported by carrier proteins while allowing free movement of small molecules and ions. Movement of large molecules such as proteins and RNA through the pores is required for both gene expression and the maintenance of chromosomes. The interior of the nucleus does not contain any membrane-bound sub compartments, its contents are not uniform, and a number of sub-nuclear bodies exist, made up of unique proteins, RNA molecules, and particular parts of the chromosomes. The best-known of these is the nucleolus, which is mainly involved in the assembly of ribosomes. After being produced in the nucleolus, ribosomes are exported to the cytoplasm where they translate mRNA.