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Cells and Genetics

Suzanne Accashian

South Carolina 7th Grade Science Cells (7-2.1, 7-2.2, 7-2.3, 7-2.4; 7-1.1, 7-1.2, 7-1.7, 7- 5.1, 7-5.2, 7-5.5 and 7-5.7) and Genetics (7-2.5, 7-2.6, 7-2.7 and 7.15)

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Across
2.one or many celled eukaryotic organism that lives in moist or wet surroundings; can be plantlike, animal-like, or funguslike
3.outward physical appearance and behavior of an organism as a result of its genotype
4.Any of various minute single-celled freshwater organisms of the genus Euglena, characterized by the presence of chlorophyll, a reddish eyespot, and a single anterior flagellum
5.a type of passive transport that occurs when water diffuses through a cell membrane
8.Organisms rid the cells of waste products that could be harmful to the cell
10.process by which plants and many other producers use light energy to produce a simple sugar from carbon dioxide and water to give off oxygen
11.Sphere shaped bacteria
13.An individual living thing, such as a bacteria, fungus, protist, plant or animal
14.protective outer covering of all cells that regulates the interaction between the cell and the environment
15.all bacteria are one celled organisms. Their cells are considered prokaryotic because they do not have their genetic material in a nucleus. Some bacteria are found as individual cells. Others grow in groups or in long chains of cells
19.consumer protozoan that surround and trap food particles, such as bacterium, with pseudopods
20.rigid structure that encloses, supports, and protects the cells of plants, algae, fungi, and most bacteria
22.ribonucleic acid, a type of nucleic acid that carries codes for making proteins from the nucleus to the ribosomes
25.section of DNA on a chromosome that contains instructions for making specific proteins
27.the genetic makeup of an organism
28.describes a trait that is covered over, or dominated, by another form of that trait and seems to disappear
29.in life science, organelle that controls all the activities of a cell and contains heredity material made of proteins and DNA.
31.cell organelle that breaks down food and releases energy
33.consumer protozoan that uses cilia to sweep food into mouth like openings
35.cell process in which the nucleus divides to form two nuclei identical to the original nucleus, in a series of steps (prophase, metaphase, anaphase, and telophase)
36.rod shaped bacteria
37.a cross involving one gene, like flower color (dihybrid-a cross involving 2 genes, like flower color and plant height.)
38.A basic unit of living matter separated from its environment by a plasma membrane; the fundamental structural unit of life
Down
1.structure in a cell’s nucleus that contains heredity material
2.a tool to predict the probability of certain traits in offspring that shows the different ways alleles can combine
6.neutral particle formed when atoms share electrons
7.To receive (a characteristic) from one's parents by genetic transmission
9.spiral shaped bacteria
12.describes a trait that covers over, or dominates, another form of that trait
16.membrane bound space used for temporary storage of materials. A vacuole can store water, waste products, food, and other cellular materials. In plant cells, the vacuole may make up most of the cells volume
17.the passing of traits from parent to offspring
18.an alternate form that a gene may have for a single trait; can be dominant or recessive
21.a type of passive transport in cells in which molecules move from areas where there are more of them to areas where there are fewer of them
23.green, chlorophyll-containing, plant-cell organelle that uses light energy to produce sugar from carbon dioxide and water
24.constantly moving gel-like mixture inside the cell membrane that contains heredity material and is the location of most of a cell’s life processes
26.process by which producers and consumers release stored energy from food molecules
30.deoxyribonucleic acid; the genetic material of all organisms; made up of two twisted strands of sugar phosphate molecules and nitrogen bases
31.an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye
32.One of several formed bodies with a specialized function, suspended in the cytoplasm and found in eukaryotic cells
34.strand of heredity material surrounded by a protein coating that can infect and multiply in a host cell

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