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Science Final :)
Almost all chapter test questions
| Question | Answer |
|---|---|
| What molecules form much of the cell membrane? | phospholipids |
| What molecule is the major energy carrier in the cell? | ATP |
| What type of molecule is in DNA? | a nucleic acid |
| What do gravity, light, and sounds have in common? | They are examples of stimuli |
| Maintaining stable internal conditions is called_______. | homeostasis |
| What happens when organisms reproduce? | They make organisms similar to themselves |
| What is the passing of genetic traits from parent to offspring called? | heredity |
| What do most chemical reactions involved in metabolism require? | water |
| What is a complex carbohydrate manufactured by plants? | starch |
| When a duck dives under water, its inner eyelids automatically raise to cover the duck's eyes. Water acts as a______. | stimulus |
| The molecule that provides energy for cellular processes is______. | ATP |
| The subunits of proteins are______. | amino acids |
| What are all living things made of? | one or more cells |
| What are food, water, air and a place to live? | basic needs of living things |
| How much of the human body is water? | about 70% |
| What are hunger, sounds and light? | examples of stimuli |
| What is DNA? | a nucleic acid |
| What is one thing all living things do? | They grow and develop |
| How do people warm up their bodies when they are cold? | shiver |
| What is reproduction in which sex cells from two parents unite? | sexual reproduction |
| What is the reproduction that does not involve the union of sex cells? | asexual reproduction |
| What is the total of all the chemical activities that the organism performs? | metabolism |
| What is the smallest unit that can perform all life processes? | cell |
| What is an organism that makes its own food? | producer |
| What is an organism that eats other organisms? | consumer |
| What is an organism that breaks down the remains of dead organisms or animal waste to get energy? | decomposer |
| What is a molecule made of sugars? | a carbohydrate |
| What is an energy-storing compound that cannot mix with water? | lipid |
| Table sugar is an example of a ______ carbohydrate. | simple |
| A potato is an example of a ______ carbohydrate. | complex |
| What six characteristics do all living things have in common? | They all have cells, sense and respond to change, reproduce, have DNA, use energy, and grow and develop |
| After all the water is removed from an insect's body, it weighs 3 g. Find its original weight. | 10 grams |
| Give an example of a producer, consumer, and decomposer. | Producer = apple tree Consumer = lion Decomposer = mushroom |
| What are the two functions of lipids? | To store energy and to from the cell membrane |
| What are the five building blocks of cells? | proteins, carbohydrates, lipids, ATP, and nucleic acids |
| Humans like you are_____. | organisms |
| One beniefit of being a large organism is that you have_____. | fewer predators |
| The life span of a multicellular organism is______. | not limited to the life of a single cell |
| A group of organisms 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 highes 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 helped discover cells but also______. | helped develop the microscope |
| Most cells are a very small size because_____. | their volume is limited by how large their surface area is. |
| 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 proteins are found on the membranes of the______. | endoplasmic reticulum |
| Energy released by the cells mitochondria is stored in_____. | ATP |
| What cell parts carry materials between organelles such as the ER and the Golgi complex? | vesicles |
| A large vesicle that aids in digestion within plant cells the way lysosomes do is called____. | a vacuole |
| Most of the cell's ATP is made and stored in the inner membrane of the______. | mitochondria |
| Specialization in cells makes tissues, organs, and systems______. | run more efficently |
| What are all organisms made of? | cells |
| Where do all cells come from? | cells |
| How are archaebacteria different from eubacteria? | Archaebacteria have different ribosomes. |
| Both archaebacteria and eubacteria_____. | have circular DNA |
| Protists are a group of organisms thay include_______. | both prokaryotes and eukaryotes |
| The complex sugar cellulose is found in the cell walls of ______. | plants |
| Because lipids are hydrophobic and face inward, their ends______. | keep water inside the cell |
| The hydrophilic ends of phospholipids face outward, where they serve to_____. | attract water |
| What does the Golgi complex do in a cell? | it packages and distributes proteins |
| What is the job of the lysosomes? | They digest food particles |
| A structure made of two or more tissues working together is calles an______. | organ |
| Larger size, longer life, and more specialized cells are the characteristics of ______ organisms. | multicellular |
| What are timy, round organelles made of proteins and other material? | ribosomes |
| What is the fluid inside a cell? | cytoplasm |
| What is an organism that consists of a single cell without a nucleus? | prokaryote |
| The "brain" of a cell is the_____. | nucleus |
| A cell with a nucleus is______. | eukaryotic |
| What is the role of the nucleolis? | to make ribosomes |
| What four basic types of tissues do animals have? | nerve, muscle, connective, and protective |
| Osmosis is important to cells because_____. | cells are filled with fluids that are made mostly of water |
| Cellular respiration is the process by which_____. | cells use oxygen to produce energy from food |
| Onw type of fermentation in muscle cells produces_______. | lactic acids |
| Photosynthesis allows_____. | a plant to produce food (glucose) |
| Organelles and chromosomes are copied during_____. | the first stage of the eukayotic cell cycle |
| When particles travel from an area of high concentration to low concentration, it is called______. | diffusion |
| Diffusion allows materials to______. | move in and out of cells |
| A cell does not use energy during _______. | diffusion |
| Why does a plant need to produce glucose? | in order to obtain energy |
| Cellular respiration allows an organism to get energy from_____. | food |
| Food particles move through a cell membrane without the use of energy during______. | passive transport |
| When wilted celery is soaked in water, it becomes crisp again due to____. | osmosis |
| What are the products of photosynthesis? | Glucose, oygen, and energy |
| What do all organisms need to get rid of in order to live? | wastes |
| Fermentation occurs when a cell cannot get_____. | oxygen needed for cellular respiration |
| What do materials go in and out of an organism's cell through? | cell membranes |
| What is the process that moves particles from lower concentration to higher concentration? | active transport |
| When a human feels hungry, it is because his or her cells need_____. | energy |
| Where is chlorophyll located? | in chloroplasts |
| What gas is released during cellular respiration? | carbon dioxide |
| In a prokayotic cell, the chromosomes are located in the main ring of______. | DNA |
| What is the process by which cells ged rid of large particles? | exocytosis |
| What is the process by which a cell membrane surrounds and encloses a large particle to bring it into the cell? | endosytosis |
| What is the process of chromosome seperation? | mitosis |
| What are the life stages of a cell called? | the cell cycle |
| What are pairs of similar chromosomes? | homologous chromosomes |
| What is a container for DNA? | chromosome |
| What is the division of the cytoplasm called? | cytokinesis |
| At what stage are chromosomes copies? | interphase |
| At what stage do homologous chromosomes pair up along the equator of the cell? | metaphase |
| At what stage do chromatids seperate and move to opposite sides of the cell? | anaphase |
| How do prokaryotic cells make more cells? | Through the process of binary fission |
| What do materials pass through in the cell membrane to get in and out of the cell? | channels |
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artmullin1997
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