QUIZ BEE

• Circulatory system


  Moves oxygen, nutrients and hormones to your body's cells to use for energy, growth and repair
• Parts of the circulatory system

  • Heart
  • Blood vessels
• Heart


  Pumps the blood throughout the body
• Parts of the heart

  • Superior vena cava
  • Aorta
  • Pulmonary valve
  • Pulmonary artery
  • Right atrium
  • Left atrium
  • Aortic valve
  • Tricuspid valve
  • Bicuspid valve
  • Right ventricle
  • Left ventricle
  • Interventricular septum
• Blood vessels

  Carry the blood throughout the body
• Types of blood vessels

  • Arteries
  • Capillaries
• Arteries

  Carry oxygenated blood away from the heart to the cells, tissues, and organs of the body
• Capillaries


  The smallest blood vessels in the body, connecting the smallest arteries to the smallest veins. The actual site where gases and nutrients are exchanged
• Deoxygenated blood path


  1. Body

  2. Superior vena cava

  3. Right atrium

  4. Tricuspid valve

  5. Right ventricle

  6. Pulmonary artery

  7. Lungs
• Oxygenated blood path


  1. Pulmonary vein

  2. Atrium

  3. Bicuspid valve

  4. Left ventricle

  5. Aorta

  6. Body
• Carbon dioxide is the waste material given off during the breathing process
• Ventricle


  Bottom chamber
• Atrium


  Top chamber
• Valve


  Acts as a one-way door
• Heart rate


  The number of times your heart beats in a minute
• Mendelian patterns of inheritance

  The effects of the recessive gene are not observed when the dominant gene is present
• Incomplete dominance

  A heterozygote shows a phenotype that is intermediate between the two homozygous phenotypes. Neither allele is dominant
• Codominance


  Both alleles are expressed equally in the phenotype of the heterozygote
• Multiple alleles


  More than two types of alleles available
• Blood types


  • A
  • B
  • AB
  • O
• Humans have 46 chromosomes in each cell, 23 from the male and 23 from the female. 22 pairs are somatic and one pair is sex chromosomes
• 1. linked genes


  Genes located on the X chromosome
• 1. linked genes

  Genes located on the Y chromosomes
• Sex-linked trait


  Is on the X chromosome
• Sex-limited traits


  Are those that are expressed exclusively in one sex
• Sex-influenced traits


  Are expressed in both sexes but more frequently in one than in the other sex
• Genes


  Located in the chromosomes
• DNA


  A double-stranded helix made up of repeating units of nucleotides
• Nitrogenous bases


  • Adenine
  • Thymine
  • Guanine
  • Cytosine
• Nucleotide

  Composed of sugar, phosphate molecules, and nitrogenous bases
• Allele


  A different form of a gene that controls a certain trait
• Punnett square


  The method by which one can determine the possible genotypes and phenotypes when two parents are crossed
• Antigen


  A substance that when introduced into the body stimulates the production of an antibody
• Gamete


  Reproductive cells that unite during sexual reproduction to form a new cell called a zygote
• Population

  A group or organisms of the same species living in a certain place
• Biodiversity


  Refers to the variety of life in an area
• Limiting factors


  Environmental conditions that keep a population from increasing in size and help balance ecosystems
• Carrying capacity


  Affected by changes in the environment
• Extinction

  Occurs when the last member of a species dies
• Endangered


  When its population is low that it is nearly extinct