Science study guide for the 7th graders at West Point Middle School.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| What are the functions of the cell parts? (no. 1.5) (cytoplasm,mitochondria, and endoplasmic reticulum) | Cytoplasm-helps transport things. Mitochondria-produce energy for the cell. Endoplasmic reticulum-carry proteins to dif. parts of the cell.
🗑
|
||||
| Understand the increasing validity as you go from hypothesis to conclusion to theory to law. | Idea-hypothesis(based on your idea)-conclusion-theory-law
🗑
|
||||
| IV | The variable that you change (does NOT depend on anything)
🗑
|
||||
| DV | The variable that changes as the IV changes (depends on the IV)
🗑
|
||||
| Constants | Things that stay the same all throughout the experiment
🗑
|
||||
| Control | The standard, or measure, for the experiment
🗑
|
||||
| Temperature=25 degrees f,Cricket calls=25 per minute,Temperature=50 degrees f Cricket calls=50 calls per minute, What can you conclude from the data? | If the temperature increases, then the cricket calls will decrease.
🗑
|
||||
| Why do all scientists use the International system of measurement? | So they can communicate their discoveries to each other in a way that they will all understand
🗑
|
||||
| Liquid volume=? | mL or millileters
🗑
|
||||
| Solid mass=? | g or grams
🗑
|
||||
| Distance=? | m or meters
🗑
|
||||
| What are the parts of a cell? | Cell membrane, cell wall, cytoplasm, nucleus, rough ER, smooth ER, mitochondria, chloroplasts, lysosomes, golgi bodies, vacuoles
🗑
|
||||
| Compare active and passive transport in a cell. | Active uses energy to move things in and out of the cell. Passive does not use energy to move things in and out of the cell.
🗑
|
||||
| How are living things organized? | Cells, tissues, organs, organ systems, organism
🗑
|
||||
| What is the most abundant compound found in living cells? | Water
🗑
|
||||
| Compare stimulus and response. | A stimulus is a change in an organism's environment that causes it to react. A response is an action or change of behavior caused by a stimulus.
🗑
|
||||
| What is the source of energy for all living things? | The sun
🗑
|
||||
| What is homeostasis? The maintenance of stable internal conditions despite changes in the surroundings | Cells, tissues, organs, organ systems, organism
🗑
|
||||
| What are the needs of living things? | energy, water, living space, stable internal conditions
🗑
|
||||
| Compare biogenesis and spontaneous generation. | Spontaneous generation is the mistaken theory that living things arise form nonliving things. Biogenesis is the theory that life can only come from life. Obviously, biogenesis is the accepted theory.
🗑
|
||||
| Who was Robert Hooke? | Robert Hooke was a scientist who was one of the first to observe cells. He built a compound microscope and looked at a cork through it. He saw (voila!) cells.
🗑
|
||||
| What are the three parts of the cell theory? | All living things are composed fo cells. Cells are the basic unit of structure and function in living things. All cells are produced from other cells.
🗑
|
||||
| Which scientists are associated with the cell theory? | Robert Hooke, Anton Leeuwenhoek, Matthias Schleiden, and Theodor Schwann
🗑
|
||||
| What are the functions of the cell parts? (Cell wall, cell membrane, nucleus, cytoplasm, mitochondria, endoplasmic reticulum) | Cell wall-protects the cell. Cell membrane-protects and separates the cell from its environment. Nucleus-directs the cell.
🗑
|
||||
| Robert Hooke was a scientist who was one of the first to observe cells. He built a compound microscope and looked at a cork through it. He saw (voila!) cells.
🗑
|
|||||
| What are the functions of the cell parts (cytoplasm, mitochondria, endoplasmic reticulum) | (Cytoplasm-helps transport things. Mitochondria-produce energy for the cell. Endoplasmic reticulum-carry proteins to dif. parts of the cell.
🗑
|
||||
| What are the functions of the cell parts? no.2 (ribosomes, golgi bodies, chloroplasts) | Ribosomes-produce proteins. Golgi bodies-package and distribut ematerials throughout the cell. Chloroplasts-capture energy from the sun and use it to produce food for the cell.
🗑
|
||||
| What are the functions of the cell parts? no. 3 (vacuoles, lysosomes) | vacuole-storage for the cell. lysosomes-break down large food particles into smallers ones.
🗑
|
||||
| What plant parts are not in an animal cell? | Chloroplasts, cell wall.
🗑
|
||||
| Compare mitosis to meiosis. | Mitosis is cell division. Meiosis is sex cell division in which the cells only have half the number of chromosomes needed to produce offspring.
🗑
|
||||
| What are the phases of mitosis and what order do they occur in? | Prophase Metaphase Anaphase Telophase Cytokinesis
🗑
|
||||
| vacuole-storage for the cell. lysosomes-break down large food particles into smallers ones.
🗑
|
|||||
| What does meiosis produce? | 4 sex cells with half the number of chromosomes.
🗑
|
||||
| What is asexual reproduction? | The reproductive process that involves only one parent and produces offspring that are identical to the parent.
🗑
|
||||
| What are the different types of passive transport? | Diffusion, where the molecules move from an area of higher concentration to an area of lower concentration, and osmosis, the diffusion of water molecules.
🗑
|
||||
| What are the dif. types of active transport? | Transport by proteins, where the cell moves things in and out by using transport proteins that "pick up" the molecule. Transport by engulfing is where the cell engulfs a particle and then forms a vacuole around the particle.
🗑
|
||||
| What will happen when a cell is placed in pure water, and then salt water? | The cell will fill with pure water. It will shrink because of the high levels of salt.
🗑
|
||||
| How are living things organized? | Cells, tissues, organs, organ systems, organism
🗑
|
||||
| What compound do living things need to undergo cellular respiration? | Oxygen
🗑
|
||||
| The cell will fill with pure water. It will shrink because of the high levels of salt.
🗑
|
|||||
| When fermentation (anaerobic respiration) occurs in muscle cells, what happens? | Lactic acids build up and make your muscles feel tired, sore, and weak.
🗑
|
||||
| Where does photosynthesis occur? | In the leaves of the plant or other green parts.
🗑
|
||||
| What are the products of photosynthesis? | Glucose and Oxygen.
🗑
|
||||
| How are photosynthesis and respiration related? | They are basically the opposite of each other. One produces food the other breaks it down.
🗑
|
||||
| What is DNA? | The genetic material that carries information about an organism that is passed from parent to offspring.
🗑
|
||||
| Where are genes located? | In the chromosomes of the cell
🗑
|
||||
| What is a mutation? | Any change that occurs in a gene or chromosome
🗑
|
||||
| What are proteins made up of? | Amino acids
🗑
|
||||
| What does transfer RNA bring to messenger RNA during protein synthesis? | Amino acids to add to the protein
🗑
|
||||
| Compare phenotype and genotype. | Phenotype is the physical characteristics of the organism. Genotype is the genetic characteristics of the organism.
🗑
|
||||
| What are some common genetic disorders? | Cystic fibrosis, Sickle-cell disease, hemophilia, Huntington's disease, and Down syndrome
🗑
|
||||
| Who is the father of genetics? | Gregor Mendel
🗑
|
||||
| What is heredity? | The passing of traits from parents to offspring
🗑
|
||||
| What did Darwin notice about finches from the Galapagos Islands?They had each adapted to their specific environment | Cystic fibrosis, Sickle-cell disease, hemophilia, Huntington's disease, and Down syndrome
🗑
|
||||
| How does natural selection power evolution? | Only the organisms with the helpful trait survive. This makes for organisms with that trait. Evolution can now act.
🗑
|
||||
| When do you use a beaker, graduated cylinder, or flask? | When measuring volume
🗑
|
||||
| When do you use a ruler, measure tape, or meter stick? | When measuring length
🗑
|
||||
| When do you use a balance or scale? | When measuring mass
🗑
|
||||
| Have human activities over the past few hundred years increased the rate of extinctions of plants and animals or decreased them? | Increased
🗑
|
||||
| What is an adaptation? | A trait that helps an organism survive and reproduce
🗑
|
||||
| List supporting evidence for evolution by natural selection. | Helpful adaptations accumulate in a species because only the organisms with those traits survive. That way the species evolves by the only living things that have the trait will survive.
🗑
|
||||
| What causes genetic mutations? | Mutations in the DNA of an organism.
🗑
|
||||
| A trait that helps an organism survive and reproduce
🗑
|
|||||
| List supporting evidence for evolution by natural selection. | Helpful adaptations accumulate in a species because only the organisms with those traits survive. That way the species evolves by the only living things that have the trait will survive.
🗑
|
||||
| What causes genetic mutations? | Mutations in the DNA of an organism.
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
wpedersen10079
Popular Science sets