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Science exam review
Question | Answer |
---|---|
When should you wear goggles in the science lab | Using chemicals, using heat, using glassware |
Nucleus | Controls the actions of the cell; location of genetic material: DNA |
Cell wall | An organelle that is on the outer part of a plant cell, the animal cell does not have this organelle |
Mitochondria | Powerhouse of the cell |
Chloroplast | Organelle in plant cell that helps convert energy into food; it often looks like green coins |
What instrument do we use to look at slides of a cheek cell ans an Elodea cell | Microscope |
What are the three main components of the cell theory | 1. All organisms are composed of one or more cells 2. Cell is the basic unit of life 3. All cells come from prexisting cells |
What are the levels of organization | Cells, tissue, organs.organ system, organism |
What is the main function of the cell membrane | Allows things to come in and out of the cell |
Besides chloroplast what cell structure does a plant cell have that an animal cell DOES NOT | Cell wall |
What is the main function of the chloroplast | Make sugar through Photosynthesis |
What is the function of an organelle | To perform a specific task in a cell |
What are the main functions of the digestive system | Mouth, Esophagus, Stomach, Large intestine, Small intestine |
What are some examples of organs in the human body | Heart, Skin, Lungs, Brain, Kidney |
What are some examples of an external stimuls | Echo location and seasonal changes |
What is the function of the vacuole | Store food, water, and waste |
What is the function and structure of cytoplasm | Holds organelles in place and it's a jelly like substance |
What is a response by your body getting an infection | Increased tempeature |
Homeostasis | The ability of an organism to maintain a stable envoirment |
What two body systems work together to get more O2 to a runner's muscles | Respitory and Circulatory |
What is a likely response to food poisoning | Vomiting |
How do skeletal muscles work | In pairs |
When you chew up a cracker what type of digestion is it | Mechanical digestion |
What is the main function of the reproductive system | The continuation of the human species |
What is the main function of the excretory system | To rid the body of liquid waste |
Stimulas | A change in an organisms environment that causes an response |
What is the purpose of the nervous system | Controls actions and reactions |
What body system to hormones belong to | Endocrine system |
What two body systems help you move | Skeletal and Muscular |
What two body systems help you breathe | Respitory and Muscualr |
Which body systems produce and distribute hormones on the body | Endocrine and Circulatory |
Hydrotropism | When a plant moves towards water |
Phototropism | When a plant moves towards the sun |
Thingmatropism | When a plant responds to touch |
What is the main function of the integumentary system | Protection of the body |
Vegetive propagation | Growing anew plant from a piece of a plant |
Heredity | The passing of traits fron one generation to the next |
What must astronauts do offset the effects of a low gravity space environment | Excercise daily |
What parts of the space suit keeps an astronaut alive | Oxygen system |
Binary fission | Becoming two by the division of the complete organism |
Regeneration | The ability to restore lost or damaged tissues or organs |
What effects do microgravity have on the body | 1. bone loss 2. muscle loss 3. low blood volume |
Where are genes lovated within the cell | On the DNA |
Budding | Process by which a new duplicate organism begins to form at the side of the parent and enlarges until an indivisual is created |
Genetics | The study of Hereidty |
Who is the botanist that studied pea plants and what specific parts did he study | Gregor Mandal he studied...... 1. height of the plant 2. color of the plant 3. color of the seed |
How are chromosomes and genes related | Genes are within the DNA and DNA makes up chromosomes |
Trait | Qualities that are passed from one generation to the next |
What protects an astronaut from cosmic rays | Space suit |