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54 Cards in this Set
- Front
- Back
When you breathe, your lungs take in oxygen and remove _____.
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carbon dioxide
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Cell respiration ivolves supplying your body's cells with ____.
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oxygen
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The ___ is a tubelike passageway for both food and air.
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pharynx
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Within the lungs, the exchange of oxygen and carbin dioxide occurs between the ___ and the capillaries.
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alveoli
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The ___ prevents food or liquid from entering your trachea.
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epiglottis
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People whose ___ don't work may have to undergo dialysis.
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kidneys
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When urinary organs don't work, this does not occur
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homeostasis
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A disorder of the lungs called ___ is often an allergic reaction.
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asthma
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___ in cigarette smoke is the greatest contributor to lung cancer.
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tar
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The main excretory organs of your body are the large intestine, kidney, lungs, and ___.
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skin
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The organs of your urinary system are ___ organs.
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excretory
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A tube called the ___ leads from the bladder to the outside of the body.
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urethra
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The amount of water in blood is important except in maintaining ____.
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normal blood presure
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An atom's nucleus contains ___.
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protons and neutrons
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A chemical formula shows the kinds and number of atoms that form a ___.
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compound
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Organic compounds that store important coded information in cells are ___.
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nucleic acids
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The function of the selectively permeable cell ___ is to allow some things to pass through it but not others,
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membrane
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Bacteria are taken into cells by ___.
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endocytosis
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Organic comounds are compounds that always contain __.
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carbon
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___ are organic compounds made of sugars and starches
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Carbohhydrates
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__ are organic compounds that store energy.
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lipids
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In a ____, substances mix evenly with other substances.
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solution
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The movements of large molecules through the cell membrane out of the cell is called ____.
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exocytosis
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If the movement if molecules requires ATP energy, it is ___.
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active transport
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Most of the life of any cell is spent in a period of cell growth and development called ___.
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interphase
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Only animals have spindle fibers during ___.
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mitosis
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___ is not composed of body cells.
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sperm
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Each human skin cell has ___ pairs of chromosomes
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23
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Human sex cells have ___ individual chromosomes.
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23
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In sexual reproduction, a new organism is produced when ____.
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sex cells combine
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By ___, a new organism can grow from just a part of the parent organism .
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regeneration
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In ___, a new organism grows from the body of the parents organism.
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budding
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The number of chromosomes in a sex cell of an organism is its ___ chromosome number.
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haploid
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Meiosis consists of ___ divisions of the nucleus.
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two
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At the end of meiosis, ___ cells have been produced from one cell.
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four
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Protein are made of units called, ____ wich are linked together in a specific order.
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amino acids
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The code for making proteins is carried to the ribosomes by ___.
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mRNA
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In DNAm adenine always pairs with ____.
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thymine
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Most carbon dioxide enters plants through stomata on the __.
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lower surface of leaves
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Light, ___, and carbon dioxide all affect the opening and closing of stomata.
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water
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The plant hormone that causes stomata to close and that helps plants respond to water loss is ___.
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abscisic acid
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The autumn colors of tree leaves are due to ___ in the leaves.
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pigment
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Light energy for the plant to use in making its food is trapped by ___.
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chlorophyll
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The type of growth response having to do with light is called ___.
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photoperiodism
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___ causes fruit to ripen.
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Ethylene gas
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Plants that require short night to flower are called ___ plants.
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long-day
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Most of the life in any cell is spent in a period of growth and development called ___.
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interphase
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In a punnett squarem, a capital letter (T) stands for a ____ allele.
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dominant
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The combination Tt represents a ____ genotye.
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heterozygous
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Experiments with four o'clock flowers produced examples of ___ dominance
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incomplete
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Blood type is an example of ___.
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multiple alleles
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Color blindness is an example of ___.
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a sex-linked disorder
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Genetic engineering has already helped people by _____.
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producing medicine
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Through recombinant DNA, scientists have been able to ___.
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improve tomatoes.
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