7th grade science cell structure and function

Write. Terms in this set (25) Cell. 7th Grade Science - Cells. Tuesday, September 9, 2014. An invention that makes small objects look larger. All organisms are made up of one or more cells 2. _____ cells and _____ cells BOTH have cell walls. Start studying 7th Grade Science, Ch. b. Bacterial cells have a cell wall and a cell membrane. Test. A microscope that uses a beam of electrons to examine a specimen is called a(n) _____. Cells need _____ to carry out all life functions. Cell Membrane. The basic unit of structure of living things is the cell. … PLAY. Its smallest unit is called a(n) ____. Sing the song, play some cell games. Description: Organism organization (cells - tissues - organs - systems- organism) Cells; Human Body Systems (respiratory, circulatory, digestive, skeletal, nervous, rep… Brief Summary of Unit (Including curricular context and unit goals): In this unit on cell theory and cell structure and functions, 7thgrade students will be able to recognize the different levels of organization in plants and animals including cells, tissues, organs, organ systems, and organisms (7.12C). The nucleus, which in real cells often looks like a dark-stained dot, contains the DNA and controls the cell. mskaptason. The main function of the _____ is to control what comes into and out of a cell. organism. Which letter of each sentence is true about bacterial cells? _____ is the ability to make things look larger than they are. Almost all cells are too small to see with the naked eye so we use a tool called a microscope to look at cells. The rigid layer of nonliving material that surrounds plant cells is the _____. Chromatin contains the instructions that direct the functions of a cell. Match. They have energy-rich organic compounds made of carbon, hydrogen, and oxygen. Where is the cell membrane located in cells that have cell walls? **Large vacuole found in plant cells, while many small vacuoles found in animal cells, -Makes proteins in the cell -Found in cytoplasm and on rough endoplasmic reticulum, but initially made in the nucleolus **Found in both plant and animal cells, -flat curved sacs used for storing and packaging - Packages proteins made by the ribosomes and sends them to other parts of the cell where needed **Found in both plant & animal cells, -Folded membranes that act like a road in the cell, transporting substances such as proteins. Spell. STUDY. They speed up a chemical reaction in a living thing. The ability of microscopes to clearly distinguish the individual parts/fine details of an object. Quiz *Theme/Title: Cell Structure & Function * Description/Instructions ; For grade 7. terms and overview of structure and function. Gravity. Theodor Schwann worked alone to develop cell theory. Brian_Schaefer2. List the three points of the cell theory. Two ways of moving things into and out of cells that do NOT need energy are _____ and _____. Organelle functions: mitochondria, Golgi apparatus, vacuole, nucleus, ribosome, chloroplast, etc. Protein that speeds up chemical reactions in living things. STUDY. (The sharpness of an image.). any living thing- all organisms are made up of cells. Accuracy versus Precision... Know Cell Organelles Structure and Function Mitochondria - makes food into energy Golgi … 1/Cell Structure & Function, Review. The cell is the basic unit of all organisms 3. Its smallest unit is the _____. There are 5 important organelles for you to know. A membrane bound structure that is the basic unit of life. Rough ER are rough due to the presence of ribosome; Smooth ER lacks ribosomes **Found in both plant & animal cells, -A sac in the cell that has digestive enzymes that can break down cell waste and old cell parts that have died **Found mostly in animal cells, rarely in plants, -The outer boundary of the cell that surrounds the cytoplasm -regulates what enters and exits the cell-protects and supports the cell **Found in both plant & animal cells, -a rigid structure that surrounds the cell membrane of plants and provides support to the cell & allows water to pass **plants only, -Located within the nucleus and made of DNA (genetic material), -Clear, jelly fluid that is within the cell and contains all the organelles of the cell-Moves material through the cell **Found in plant and animal cells, -Located inside the Nucleus - Stores RNA (genetic material), Things to remember: plant cell vs animal cell, Plant cells: chloroplasts, cell wall, vacuole is larger than in animal cell. They are large organic molecules made up of _____, _____, _____, _____, _____. The cell membrane is _____, which means that some things can pass through it while others cannot. Cell Theory. Cell Theory. Gravity . FALSE, Matthais Schleiden also worked on it. Created by. -Control center or "brain of the cell" -Contains the DNA (genetic material stored in chromosomes) **Found in both plant & animal cells, -Powerhouse of the cell -Releases chemical energy from food, -Produces food for the plant cell by photosynthesis-Contains chlorophyll **Found in plant cells only, -stores food, water, minerals, waste. Process by which molecules move from an area of higher concentration to one of lower concentration. Compounds that do not contain carbon are called _____. Starch is a kind of carbohydrate. Learn. What kind of microscope did Anton van Leeuwenhoek use? The structure of each kind of body cell is suited to its _____ _____. Three ways that substances can move into and out of a cell are: In diffusion, molecules move from an area of _____ concentration to an area of _____ concentration. What did the invention of the microscope make possible? It magnifies an object by bending the light that passes through them. Cell structure, organelle. Cell Structure 7th grade. It allowed scientists to observe the cells that make up living things, therefore making it possible for people to discover and learn about cells. A red blood cell shape where there is high concentration of water molecules outside the cell. But they contain even more energy than carbohydrates. When two or more elements combine chemically, they form a(n) _____. True or false: Both DNA and RNA are proteins. The process by which water moves across a cell membrane is called. Active transport requires the cell to use energy, while passive transport does not. The storage compartment of the cell is the _____. As a cell gets larger, it takes longer for a molecule to reach the _____ of the cell.

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