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8th Science Midterms
SRB *th grade science midterms
| Question | Answer |
|---|---|
| The molecule that provides energy for cellular processes is... | ATP |
| What is the passing of traits from parent to offspring called? | heredity |
| An organism that makes its own food. | producer |
| The maintenance of a stable internal condition. | homeostasis |
| 3 benefits of being multicellular are... | longer life, larger size, and cell specialization |
| What is the smallest unit that can perform all processes necessary for life? | THE cell |
| What molecules form most of the cell membrane? | phospholipids |
| What are the 3 parts of the cell theory? | all organisms are made up of 1 or more cells, the cell is the basic unit of all living things, and all cells come from existing cells |
| What part of the cell forms a barrier between the cell and its enviroment? | cell membrane |
| Most of a cell's ATP is made and stored in the inner membane of the... | mitochondria |
| What is a cell without a nucleus? | prokaryote |
| What is a cell with a nucleus? | eukaryote |
| What does the Golgi complex do in a cell? | packages and distributes proteins |
| What are the two types of carbohydrates? | simple and complex |
| What are ribosomes? | tiny, round organelles made of protein and other material |
| Where is DNA stored in a cell? | the nucleus |
| A group of cells with the same function make up what? | a tissue |
| An organ consists of what? | 2 or more tissues |
| What do most chemical reactions involved in metabolism require? | water |
| What is the sum of all chemical activities a living thing performs called? | metabolism |
| What is diffusion? | the travel of particles from areas of high concentration to areas of low concentration? |
| What is osmosis? | the diffusion of water through a semipermeable membrane |
| In a prokaryotic cell, the chromosomes are located where? | the main ring of DNA |
| Most complex organisms obtain energy through... | cellular respiration |
| What is the equation for photosynthesis? | 6CO +6H O+light energy=C H O +6O 2 2 6 12 6 2 |
| What is the equation for cellular respiration? | C H O +6O =6CO +6H O+ ATP 6 12 6 2 2 2 |
| What is the chemical equation for glucose? | C H O 6 12 6 |
| In what kind of tissue does photosynthesis take place? | ground tissue |
| Protists are a group of organisms that include what? | eukaryotes and prokaryotes |
| What is the job of lysosomes? | digest food particles |
| What does ATP stand for? | Adenosine Triphosphate |
| What is the process where a cell gets rid of large particles? | exocytosis |
| What is the process where a cell brings in a large particle? | endocytosis |
| Fermentation occurs when? | when a cell can't get oxygen needede for cellular respiraion |
| What is the difference between active and passive transport? | active transport requires energy |
| How many chromosomes do humans have? | 46 |
| What are the four stages of mitosis in order? | prophase, metaphase, anaphase, telophase |
| What are pairs of similar chromosomes called? | homologous chromosomes |
| What do all organisms need to get rid of in order to live? | wastes |
| What are amino acids? | small mlecules that make up proteins |
| What are the two types of reproduction? | sexual and asexual |
| What are food water and a place to live? | basic needs of most living things |
| Why do plants need to produce glucose? | to pbtain energy |
| When wilted celery is soaked in water, it becomes crisp again due to... | osmosis |
| What is the division of cytoplasm? | cytokinesis |
| What is the first stage of the cell cycle of eukaryotic cell? | interphase |
| How do prokaryotic cells make new cells? | through binary fission |
| One type of fermentation produces what? | lactic acid |
| A group of organs that work together is called what? | organ system |
| Robert Hooke and Anton van Leeuwenhoek not only helped discover cells but also... | helped develop the microscope |
Created by:
matt1
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