Diffusion/Osmosis
... Passive Transport-movement of any substance across a membrane w/o use of chemical energy Facilitated Diffusion: transport proteins help move materials across cell membrane Gated Channel: protein controlled opening (channel), some are permanently open ...
... Passive Transport-movement of any substance across a membrane w/o use of chemical energy Facilitated Diffusion: transport proteins help move materials across cell membrane Gated Channel: protein controlled opening (channel), some are permanently open ...
普通生物學 - 高雄師範大學生物科技系
... (c) the degradation of cyclin (d) synthesis of DNA (e) an increase in the cell’s volume-to-genome ratio. 14. How many different combinations of maternal and paternal chromosomes can be packaged in gametes made by an organism with a diploid number of 8 (2n=8)? (a) 2 (b) 4 (c) 8 (d) 16 (e) 32 15. The ...
... (c) the degradation of cyclin (d) synthesis of DNA (e) an increase in the cell’s volume-to-genome ratio. 14. How many different combinations of maternal and paternal chromosomes can be packaged in gametes made by an organism with a diploid number of 8 (2n=8)? (a) 2 (b) 4 (c) 8 (d) 16 (e) 32 15. The ...
Specialised Cells
... and animals consist of many cells and so are known as multicellular They contain many different types of cells. Each type of cell is designed to carry out a particular job or function. This is known as cell specialism Not all cells look the same. Some cells have a special shape and feature ...
... and animals consist of many cells and so are known as multicellular They contain many different types of cells. Each type of cell is designed to carry out a particular job or function. This is known as cell specialism Not all cells look the same. Some cells have a special shape and feature ...
File
... Capsule- Outside the cell wall. For additional protection. Plasma membrane- Regulates what crosses into the cell Nucleiod Region- where circular DNA is found Ribosomes- Workbench, where proteins are made ...
... Capsule- Outside the cell wall. For additional protection. Plasma membrane- Regulates what crosses into the cell Nucleiod Region- where circular DNA is found Ribosomes- Workbench, where proteins are made ...
Chromosomes
... • Consists of two main phases: – Interphase • Period that cells are in when not dividing. • 90% of cell cycle ...
... • Consists of two main phases: – Interphase • Period that cells are in when not dividing. • 90% of cell cycle ...
Nerve Cells (Human)
... Nerve Cells (Human) 1 Neurons Structure Nerve cells are called neurons. They do not go through the process of reproducing themselves (mitosis). They are said to be amitotic: if destroyed, they cannot be replaced. Ganglia are collections of nerve-cell bodies outside the central nervous system. All ne ...
... Nerve Cells (Human) 1 Neurons Structure Nerve cells are called neurons. They do not go through the process of reproducing themselves (mitosis). They are said to be amitotic: if destroyed, they cannot be replaced. Ganglia are collections of nerve-cell bodies outside the central nervous system. All ne ...
Mitosis20PowerPoint1
... Cell Cycle -- series of events cells go through as they grow and divide •Cell grows, prepares for division, then divides to form 2 daughter cells – each of which then begins the cycle again ...
... Cell Cycle -- series of events cells go through as they grow and divide •Cell grows, prepares for division, then divides to form 2 daughter cells – each of which then begins the cycle again ...
Reading on Mitosis
... chromosomes. After each chromosome is duplicated, the two copies are called chromatids. Chromatids are held together at a region called the centromere. The joined chromatids condense into an X shape, as shown in Figure 3. After this step, the cell enters the second stage of the cell cycle. In the se ...
... chromosomes. After each chromosome is duplicated, the two copies are called chromatids. Chromatids are held together at a region called the centromere. The joined chromatids condense into an X shape, as shown in Figure 3. After this step, the cell enters the second stage of the cell cycle. In the se ...
Biology Test 1 Study Guide – Things to know
... 27. Which cell structure contains the cell’s genetic material and controls many of the cell’s activities? 28. An animal cell, like a red blood cell, that is surrounded by fresh water will burst. Why? 29. What do prokaryotes lack that makes them different from eukaryotes? 30. A nucleus is an organell ...
... 27. Which cell structure contains the cell’s genetic material and controls many of the cell’s activities? 28. An animal cell, like a red blood cell, that is surrounded by fresh water will burst. Why? 29. What do prokaryotes lack that makes them different from eukaryotes? 30. A nucleus is an organell ...
Slide 1
... Human skin cell = 46 chromosomes Human heart cell = 46 chromosomes Human muscle cell = 46 chromosomes Fruit fly = 8 chromosomes Fruit fly skin cell = 8 chromosomes Fruit fly heart cell = 8 chromosomes Fruit fly muscle cell = 8 chromosomes ...
... Human skin cell = 46 chromosomes Human heart cell = 46 chromosomes Human muscle cell = 46 chromosomes Fruit fly = 8 chromosomes Fruit fly skin cell = 8 chromosomes Fruit fly heart cell = 8 chromosomes Fruit fly muscle cell = 8 chromosomes ...
Meiosis - KrejnusBiology
... the new organism, which is now a random mix of chromosomes from each parent. ...
... the new organism, which is now a random mix of chromosomes from each parent. ...
Cell Specialization
... reproduce, make everything it needs to make, regulate everything it needs to regulate, and do everything! All by itself! ...
... reproduce, make everything it needs to make, regulate everything it needs to regulate, and do everything! All by itself! ...
Cell function notes
... Thick, jelly-like substance Holds cell organelles in place inside the cell Helps support & protect the cell’s organelles ...
... Thick, jelly-like substance Holds cell organelles in place inside the cell Helps support & protect the cell’s organelles ...
Bacteria Jeopardy
... What is the slimy coating on the outside of the cell wall of some bacteria? ...
... What is the slimy coating on the outside of the cell wall of some bacteria? ...
Mitosis
Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. In general, mitosis (division of the nucleus) is often followed by cytokinesis, which divides the cytoplasm, organelles and cell membrane into two new cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of an animal cell cycle—the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell.The process of mitosis is divided into stages corresponding to the completion of one set of activities and the start of the next. These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei. The cell may then divide by cytokinesis to produce two daughter cells. Producing three or more daughter cells instead of normal two is a mitotic error called tripolar mitosis or multipolar mitosis (direct cell triplication / multiplication). Other errors during mitosis can induce apoptosis (programmed cell death) or cause mutations. Certain types of cancer can arise from such mutations.Mitosis occurs only in eukaryotic cells and the process varies in different organisms. For example, animals undergo an ""open"" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi undergo a ""closed"" mitosis, where chromosomes divide within an intact cell nucleus. Furthermore, most animal cells undergo a shape change, known as mitotic cell rounding, to adopt a near spherical morphology at the start of mitosis. Prokaryotic cells, which lack a nucleus, divide by a different process called binary fission.