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Science-Ch. 2-4-exam
Science-Ch.-exam
| Question | Answer |
|---|---|
| What molecules form much of the cell membrane? | phospholiquids |
| What molecule is the major energy carrier in the cell? | ATP |
| What type of molecule is DNA? | a nucleic acid |
| What do gravity, sounds, and light have in common? | They are examples of stimuli. |
| Maintaining stable internal conditions is called... | homeostasis |
| What happens when organismns reproduce? | They make organisms similar to themselves. |
| What is the passing genetic traits from parent to offspring called? | heredity |
| Which of the following is NOT a basic need of most organisms? | plants |
| What do most of the chemical reactions involved in metabolism require? | water |
| What is a complex carbohydrate manufactured by plants? | starch |
| When a duck dives underwater, its inner eyelids automatically raise to cover the duck's eyes. In this case water acts as... | a stimulus |
| The subunits for proteins are... | amino acids |
| What are living things made of? | one or more cells |
| What are food, water, air, and a place to live? | basic needs of most living things |
| How much of the human body is water? | about 70% |
| What are hunger, sounds, and light? | examples of stimuli |
| What is one charcteristic that all living things share? | Their cells have DNA. |
| How do people warm up their bodies when they are cold? | shiver |
| a change that effects the activity of the organism | stimulus |
| reproduction in which the sex cells from two parents unite, producing offspring that share traits from both parents | sexual reproduction |
| reproduction that does not involve the union of sex cells and in which one parent produces offspring identical to itself | asexual reproduction |
| the total of all chemical activities that the oganism performs | metabolism |
| the smallest unit that can perform all life processes | cell |
| an oraganism that makes its own food | producer |
| an oganism that eats other organisms | consumer |
| an organism that breaks down the remains of dead organisms or animal waste to get energy | decomposer |
| a molecule made of sugars | carbohydrate |
| a molecule that is somtimes called the blueprint of life | nucleic acid |
| a large molecule made up of smaller molecules called amino acids | protein |
| a molecule that forms much of the cell membrane | phosopholipid |
| an energy storing compound that cannot mix with water | lipid |
| table sugar | a simple carbohydrate |
| a potato | a complex carbohydrate |
| Humans like you are.. | organisms |
| One benefit of being multicellular is... | fewer predators |
| The life span of a multicellular organism is... | not limited to the life of a single cell. |
| A group of cells with the same function make up ... | a tissue |
| In what kind of tissue does photosynthesis take place? | ground |
| An organ consists of... | two or more tissues |
| The highest level of organization is the... | organ system |
| The functions of an organism's parts are related to those parts'... | structures |
| Robert Hooke and Anton van Leeuwenhoek not only help discover cells but also... | helped develop the microscope |
| What cell part supports the cell and might be made of cellulose or chitin? | cell wall |
| What part of the cell forms a barrier between the cell and its environment? | cell membrane |
| What part of the cell keeps the cell membrane from collapsing? | cytoskeleton |
| Ribosomes, the organelles that make up proteins, are found on the membranes of the... | endoplasmic reticulum |
| Energy released by a cell's mitochondria is stored in... | ATP |
| Larger size, longer life, and specialization are three advantages to being a... | multicellular organism |
| A large vesicle that aids in digestion within plant cells the way lysosomes do is called... | a vacuole |
| Most of the cells ATP is made and stored in the inner membrane of the... | mitochondria |
| Specialization in cells makes tissues, organs, and organ systems... | work more efficiently |
| What are organisms made of... | cells |
| Where do all cells come from? | cells |
| What protects the inside of the cell from the outside world? | cell membrane |
| How are archaebacteria different from eubacteria? | Archaebacteria have different ribosomes. |
| The complex sugar cellulose is found in the cell walls of... | plants |
| What does the Golgi complex do in a cell? | It packages and distributes protein. |
| What is the job of the lysosomes? | They digest food particles. |
| A cell with a nucleus... | eukaryote |
| A cell without a nucleus... | prokaryote |
Created by:
lkopp12
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