Cell Biology

quiz 8

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Biology

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Adenosine triphosphate

Cell surface receptor

Chemokine receptor

A cell lacking glycoproteins on the external surface of its plasma membrane would likely be inefficient in a. transporting ions against a concentration gradient b. cell-cell recognition c. maintaining fluidity of the phospholipid bilayer d. attaching to the cytoskeleton e. establishing the diffusion barrier to charged molecules. White blood cell engulf bacteria through what process? a. exocytosis b. phagocytosis c. pinocytosis d. osmosis e. active transport During signal-transduction Ca++ and cAMP function as a. ligands. b. receptors. c. secondary messengers. d. inhibitors. e. responders

quiz 7

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Biology

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Osmosis

cell

Semipermeable membrane

Which of the following statements is NOT true? a. Phospholipids can move laterally in a membrane but rarely move from the extracellular to the intracellular side. b. Plasma membranes are more like a fluid than a solid. c. In a plasma membrane, the hydrophobic portion is oriented to the inside of the membrane. d. Lipid molecules make the cell membrane relatively impermeable to water. e. Saturated phospholipids make a more fluid membrane.

quiz 4

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Biology

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Cell Biology

cell

Ribose

ADP-ribose diphosphatase

Which of the following molecules contains a glycosidic linkage type of covalent bond? a. 4 b. 6 c. 12 d. 13 e. 15 Which molecule has hydrophilic and hydrophobic properties and would be found in plasma membranes? a. 1 b. 5 c. 6 d. 12 e. 14 Which of the following molecules act as building blocks (monomers) of polypeptides? a. 1, 4, and 6 b. 2, 7, and 8 c. 7, 8, and 13 d. 11, 12, and 13 e. 12, 13, and 15 Which of the following combinations could be linked together to form a nucleotide? a. 1, 2, and 11 b. 3, 7, and 8 c. 5, 9, and 10 d. 11, 12, and 13 e. 12, 14, and 15 The interaction of four polypeptide chains in a hemoglobin molecule is __________ structure. a. primary b. secondary c. tertiary d. quaternary e. stereo

cell

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Biology

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cell

The Cell The cell is one of the most important concepts in biology since every living organism is made of cells. Bacteria are single celled while you are made up of trillions of cells. As different as we are from bacteria, our cells share some important similarities. All cells have a cell membrane that separates them from the outside environment and all cells have ribosomes where proteins are made. Attribution-Noncommercial 3.0 United States, more free study guides at www.Biology101.org, copyright Anthony D'Onofrio a quick overview The basic diagram of the cell shown above represents most eukaryotic cells (humans, plants, fungi). One main distinction is that plants have a cell wall outside the cell membrane that animal cells lack.

BIO CH 11

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Biology

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Intracellular receptors

G protein–coupled receptor

Cell surface receptor

Steroid hormone receptor

Protein kinase A

Protein kinase

Receptor tyrosine kinase

Receptor

Campbell's Biology, 9e (Reece et al.) Chapter 11 Cell Communication Students will encounter the topic of cell signaling repeatedly in this course and throughout their studies of biology. Therefore, the more confident they are regarding the basic principles, the more successful they are liable to be when encountering the topic. This chapter includes more higher-skill-level questions and makes connections to the principle of evolution as well as to other chapters of the text. Multiple-Choice Questions 1) Using the yeast signal transduction pathways, both types of mating cells release the mating factors. These factors bind to specific receptors on the correct cells, A) which induce changes in the cells that lead to cell fusion.

ap_bio_chap_9_cell_cycle.ppt

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Biology

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mitosis

Meiosis

Aster

Spindle apparatus

Cell growth

Cyclin

0 9 The Cell Cycle Overview: The Key Roles of Cell Division The ability of organisms to produce more of their own kind best distinguishes living things from nonliving matter The continuity of life is based on the reproduction of cells, or cell division ? 2014 Pearson Education, Inc. Figure 9.1 Reproduces the entire organism in unicellular organisms Enables multicellular eukaryotes to develop from a single cell and, once fully grown, to renew, repair, or replace cells as needed Is an integral part of the cell cycle, the life of a cell from formation to its own division ? 2014 Pearson Education, Inc. Cell Division Concept 9.1: Most cell division results in genetically identical daughter cells

ap biology chapter1 ppt

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Biology

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Archaea

Domain

Biology

0 1 Introduction: Evolution and the Foundations of Biology Overview: Inquiring About Life An organism?s adaptations to its environment are the result of evolution For example, a beach mouse?s light, dappled fur acts as camouflage, allowing the mouse to blend into its surroundings Inland mice of the same species are darker in color, matching their surroundings Evolution is the process of change that has transformed life on Earth Figure 1.1 Figure 1.2 Biology is the scientific study of life Biologists ask questions such as How does a single cell develop into an organism? How does the human mind work? How do different forms of life in a forest interact? Concept 1.1: Studying the diverse forms of life reveals common themes

Biology Cell part review guide

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Biology

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cell

Outline of cell biology

Vacuole

Ribosome

Cytoplasm

Name_________________________________Date_______________________Pd._____ Cell Review Worksheet Complete the following table by writing the name of the cell part or organelle in the right hand column that matches the structure/function in the left hand column. A cell part may be used more than once. Structure/Function Cell part 1. Stores material within the cell 2. Digests excess or worn-out cell parts, food particles and invading viruses or bacteria 3. Site of protein synthesis 4. Jelly-like substance in the cell 5. Organelle that manages or controls all the cell functions in a eukaryotic cell 6. Contains chlorophyll, a green pigment that traps energy from sunlight and gives plants their green color

venn diagram comparing bacteria, animal and plant cells

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Biology

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Archaea

cell

Outline of cell biology

Similarities and Differences Found in Bacteria, Animal, and Plant Cells ? Lesson 3 Assignment Cells are the smallest unit of life. There are two categories of cells, prokaryotic and eukaryotic. Prokaryotic cells contain no nucleus or organelles. Bacteria and archaea are prokaryotic cells. Eukaryotic cells have a nucleus and separate compartments known as organelles. Cells for plants and animals are eukaryotic. Though animals, plants and bacteria are very different organisms and their cellular structures contain differences, they also have some similarities. The easiest way to show this is through the use of a Venn Diagram: http://www.uic.edu/classes/bios/bios100/lecturesf04am/lect06.htm http://www.ivyroses.com/Biology/Cells/Plant-Animal-and-Bacterial-Cells.php