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1st Semester Final
Term | Definition |
---|---|
hypothesis | possible answer to a question |
independent | variable that is changed |
archaebacteria | prokaryote that can live in harsh environments |
cell wall | helps maintain shape of plant cell |
nucleus | controls all the cell's activities |
cell membrane | regulates what goes in and out of the cell |
chlorophyll | makes food for the plant |
eukaryote | most are multicellular; has a nucleus |
metaphase | stage when homologous chromosomes like up in the middle |
interphase | stage when chromosomes are copied |
chromosomes | part of cell that contains heredity material |
villi | increases surface area of small intestines |
peristalsis | squeezing action that moves food through |
pepsin | breaks down protein in the stomach |
liver | makes bile |
pancreas | regulates blood sugar |
bacteria | killed by antibiotic |
vaccines | prevent but do not cure diseases |
cellular respiration | chemical reactions that involve releasing energy from food |
alveoli | increase surface area of lungs and do gas exchange |
artery | takes blood away from heart |
vein | takes blood to the heart |
white blood cells | fight disease |
neuron | nerve cell |
cerebrum | stores memories in the brain |
cerebellum | controls balance |
medulla | control involuntary processes |
glands | groups of cells that make special chemicals |
hormones | special chemicals made by glands |
homeostasis | maintains stable internal environment |
tendons | connect muscle to bone |
epidermis | thin, top layer of skin |
ovules become | seeds |
ovary becomes | fruit |
placenta | provides embryo with oxygen and nutrients |
meiosis | makes sex cells |
mitosis | makes body cells |
gametes | another word for sex cells |