Biology Midterm Crossword

active transport energy-requiring process that moves material across a cell membrane against a concentration
adenosine triphosphate (ATP) one of the principal chemical compounds that living things use to store and release
Asexual reproduction new organism has a single parent. the single cell divides in half to form new
biology science that seeks to understand the living
Biosphere the part of earth that contains all ecosystems
cell culture group of cells grown in a nutrient solution from a single
cell fractionation technique in which cells are broken into pieces and different cell parts are
cell membrane thin,flexible barrier around the cell; regulates what goes in and out of the
cell wall strong supporting layer around the cell membrane in plants, algae, and some
cells smallest functional unit of
centriole one of two tiny structures located in the cytoplasm of animal cells near the nuclear
chloroplast captures the energy from sunlight and converts it to chemical
community populations that live together in a defines
controlled experiment when one variable is changed at a time. the other variables are kept unchanged, or
cytoplasm material inside cell membrane-not including the
cytoskeleton network of protein filaments within some cells that helps the cell maintain its shape and is involved in many forms of cell
data The information gathered from
diffusion process by which molecules tend to move from an area where they are more concentrated to an area where they area less
ecosystem community and its nonliving
endocytosis process by which a cell takes material into the cell by infolding of the cell
evolution the change in a kind of organism
exocytosis process by which a cell releases a large amount of
facilitated diffusion movement of specific molecules across cell membranes through protein
golgi apparatus stack of membranes in the cell that modifies, sorts,and packages proteins from the endoplasmic
groups of cells tissues, organs and organ
homeostasis process by which organisms maintain a relatively stable internal
hypertonic when comparing two solutions, the solution with the greater concentration of
hypothesis proposed scientific explanation for a set of
hypotonic when comparing two solutions, the solution with the lesser concentration of
inference a logical interpretation based on prior knowledge or
isotonic when the concentration of two solutions is the
Levels of Organization Biosphere, Ecosystem, Community, Population, Organism, Groups of cells, Cells,
lysosome cell organelle filled with enzymes needed to break down certain materials in the
manipulated variable variable that is deliberately
metabolism combination of chemical reactions through which an organism builds up or breaks down materials as it carries out
metric system system of measurement whose units are based on certain physical standards and are scaled on multiples of
microscopes device that produces magnified images that you cant see with the human
mitochondria cell organelle that converts the chemical energy stored in food into compounds that are more convenient for the cell to
molecules groups of atoms; smallest unit of most chemical
nuclear envelope layer of two membranes that surrounds the nucleus of a
nucleolus small dense region within most nuclei in which the assembly of proteins
nucleus structure that contains the cell's genetic material (DNA) and controls the cell's
observation process of gathering information about events or processes in a careful, orderly way - use of one or more sense (sight,hearing,touch,smell, and sometimes taste) to gather
organism individual living
osmosis diffusion of water through a selectively permeable
phagocystosis process in which extensions of cytoplasm surround and engulf large particles and take them into the
populations group of organisms of one type that live in the same
qualitative data descriptive and involve characteristics that can't usually be
quantitative data are expressed as numbers, obtained by counting or
responding variable that is observed and that changes in response to the manipulated
ribosome small particle in the cell on which proteins are assembled; made of RNA and
spontaneous generation life arising from non living
theory when particular hypothesis' may become so well supported scientists consider
vacuole cell organelle that stores materials such as water, salts, proteins, and