BIOLOGY CH 1 AND 2 Word Scramble
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Question | Answer |
What is the characteristics of life? | organization, reproduction, homeostasis, obtain and utilize energy, and evolution. |
What is a chromosome? | a continuous molecule of DNA wrapped around protein in the nucleus of a eukaryotic cell; also, the genetic material of a prokaryotic cell. |
What is a codon? | A triplet of mRNA bases that specifies a particular amino acid. |
Housekeeping genes: | genes turned "on" in all cells at all times. |
Cell type specific genes: | genes turned "on" in each cell that give a cell its special properties. |
Developmental regulatory genes: | genes specific to certain stages during growth and development of a person. |
Inducible gene: | genes not normally expressed but can be in response to external stimuli. |
Who wrote Micrographia? | Hooke |
Who came up with: all living things consists of cells, the cell is the basic unit of structure of all organisms? | Schleiden and Schwann |
Who proposed that all cells come from other cells? | Virchow |
Who conducted an experiment in which supported Virchow's statement? | Pasteur |
What is simple/small, has no membrane bound organelles, uses DNA for genetic information, and enclosed in a membrane? | Prokaryotic cells |
What is large/complex, has membrane bound organelles, uses DNA for genetic information, and enclosed in a membrane? | Eukaryotic cells |
What type of reproduction, involves a single parent and is genetically identical? | Asexual reproduction |
What type of reproduction involves two parents and is genetically diverse? | Sexual reproduction |
What are the three domains of life? | Bacteria, Archaea, and Eukarya |
What are the three factors that determines whether a substance is permeable to a cell membrane? | Size, charge, and polarity |
Which have a mitochondria? | Animal and plants |
Which have RNA polymerase? | animal, plants, prokaryote |
Which use glycolysis? | animal, plants, prokaryote |
Which have a cell wall? | plants and prokaryote |
Which have a nucleoid? | prokaryote |
Name two large organic molecules that are part of ALL membranes? | Carbohydrates, and proteins. |
Name three of the defining characteristics of the members of Kingdom Animalia? | multicellular, heterotrophs, contain nuclei |
Name three distinct structures, components and/processes that are common to both prokaryotic and eukaryotic cells? | Use DNA as genetic code, enclosed in a membrane, they both go through glycolysis. |
What is a scientific question? | observations and/or information from previous research. Not all can be answered scientifically. |
What are the two main types of scientific inquiry? | 1. Discoverable science/ observational 2. hypothesis based |
What is a hypothesis? | A tentative explanation for an observed phenomenon, it can be used if it is falsifiable. Must be possible to collect/observe data that does not support it. |
What is an independent variable? | what the investigator deliberately changes |
What is the depenedent variable? | What the scientist measures or records in order to learn the effect of changing. |
What is the constant variables? | All variables (with the exception of the variable being tested) must be kept constant! |
What is a control treatment? | in which the independent variable is eliminated or set at a standard value to ensure that the effect on the dependent variable is attributed to the independent variable. must be performed parallel to the experiment treatments. |
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