7th science exam Word Scramble
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Question | Answer |
What is scientific method? | A form of a series of procedures |
What are the parts of a scientific method? | State the problem, gather information, form a hypothesis, perform an experiment, analyze data, draw conclusions. |
5 traits of a living thing. | organized, respond, energy, reproduce, grow develop. |
Cytoplasm | a gelatin like substance that constantly flows inside the cell membrane. important chemical reactions occur here. |
Cell membrane | An outer covering all cells have, it is made of one or more layers of linked molecules. |
Cell wall | tough rigid outer coverings that protect the cell and give it shape. |
Nucleus | Directs all cell activities and is separated from the cytoplasm by a membrane |
Ribosome | small structures scattered around the cell, make their own proteins. |
Rough endoplasmic recticulum | Extends from the nucleus to the cell membrane (has ribosomes on it). materials can be processed and moved around inside the cell. |
Smooth endoplasmic reticulum | Extends from the nucleus to the cell membrane. materials can be processed and moved around inside the cell. |
Mitochondria | The energy in food is stored until it is released by the... |
Chloroplast | Food is made in green organelles in the cytoplasm called... |
Golgi body | Stacked, flattened membranes, sorts proteins and other cellular substances and package them into membrane bound structures called vesicles. |
Vacuole, Vesicle | A space within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid. |
Lysosome | Contain digestive chemicals that help break down food molecules, cell wastes, and worn out cell parts. |
Cytoskeleton | A framework through out the cytoplasm, which helps maintain or change its shape, they enable some cells to move. |
Tissue | a group of similar cells that work together to one job. |
Organ | a structure made up of two or more different types of tissues that work together. |
Cell | The smallest unit of an organism that carries on the functions of life. |
What are the cell theory steps? | All organisms are made up of one or more cells, The cell is the basic unit of organization in organisms, all cells come from cells. |
Who concluded that plants are made of cells in the 1830s? | Matthias Schleiden |
Who concluded that all animals are made of cells? | Theodor Schwann |
Who hypothesized that cells divide to form new cells? | Rudolf Virchow |
If the eyepiece of a microscope is 10x and the lense is 4x, what is the total? | 40x |
If the eyepiece of a microscope is 10x and the lense is 40x, what is the total? | 400x |
Virus | A strand of hereditary material surrounded by a protein coating. |
Is a virus living? | No |
Why is a virus living or why is it not living? | Viruses are not living because they lack a cell membrane, nucleus, and organelles. |
How can a virus be treated? | Vaccinating people, improving sanitary conditions, quarantining patients, and controlling animals that spread disease. |
Matter | Anything that takes up space and is made of atoms (even air). |
Energy | anything that brings about change. |
What are atoms made of? | Protons, neutrons, and electrons. |
Protons | Positive charge |
Neutron | No charge |
Electron | Negative charge |
Is a virus a non living thing? | Yes |
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