Branches of science

• biology


  study of life
• chemistry


  study of substance properties
• cell


  the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body.
• what are the 2 types of cell and fill the missing parts of it.

  A) centrioles

  B) cell membrane

  C) vacuole

  D) ribosomes

  E) endoplasmic reticulum

  F) mitochondrion

  G) nucleus

  H) nucleolus

  I) chromosomes

  J) golgi complex

  K) cytoplasm

  L) plasma membrane

  M) vacuole

  N) chloroplast

  O) ribosomes

  P) cell wall

  Q) plasmodesma

  R) plant cell

  S) animal cell

  
• cell membrane


  controls what enters and leaves the cell
• chromosomes 


  genetic information in the nucleus
• endoplasmic reticulum 


  transport system in cell
• ribosome 


  organelle makes proteins
• vacuole 


  stores water and/or waste
• mitochondria 


  organelle for cellular respiration provides energy; the power house of the cell
• golgi ( complex / apparatus )

  organelle packages proteins made by ribosomes sorted for transport to their eventual destinations: lysosomes, the plasma membrane, or secretion.
• cytoplasm 


  a watery jelly like liquid that fills the cell it is where the chemical reactions take place
• nucleus 


  the control centre of the cell; it contains the genetic information
• chloroplasts

  that absorbs the sunlight energy for use in photosynthesis they contain the green pigment and chlorophyll
• lysosome 


  breaks down old cell parts
• nucleolus


   to produce and assemble the cell's ribosomes
• plasmodesmata


  facilitate the movement of molecules between cells, ranging from small photosynthetic products to large proteins and mRNA
• endocrine system


  essential in regulating growth and development, metabolism as well as reproductive processes composed of groups of glands.
• pituitary 


  stimulates growth and controls the function of other glands
• thyroid 


  regulates body metabolism and causes storage of calcium in bones
• parathyroid


  controls the calcium levels and normalizes bone growth
• thymus 


  produces certain antibodies
• adrenal


  prepares the body for action or emergency proposes
• pancreas 


  regulates blood sugar level
• reproductive 


  involved in sexual reproduction of a male and female
• Testis/Testes


  Oval shaped organs found inside a protective sac called the scrotum
• Scrotum


  Sac of skin that holds the testis
• Penis


  Deposits sperms into the vagina during mating
• Vas deferens


  Tube that carries sperm from testes to urethra
• Urethra


  Carries sperm and urine out of the body
• Glands


  • Seminal vesicle
  • Prostate gland
  • Bulbourethral gland
• Seminal vesicle


  Secretes a fluid that makes up most of the components of semen
• Prostate gland


  Secretes a slightly alkaline milky fluid that is discharged as part of the semen
• Bulbourethral gland


  Secretes a thick and clear mucus that lubricates and neutralizes the trace of acidic urine in the urethra
• Testes


  • Begin to produce sperm only after males reach puberty
  • Their function is regulated by two hormones secreted by the pituitary gland in the brain: LH (Luteinizing Hormone) which stimulates the secretion of the sex hormone testosterone; FSH (Follicle-stimulating hormones) stimulates sperm production in the seminiferous tubules together with testosterone.
• The Female Reproductive System functions


  • Produces female sex cells
  • Receives sperm cells from the male
  • Nurtures the development of and provides nourishment for the new individual
• Parts of the Female Reproductive System

  • Ovary
  • Oviduct (fallopian tube)
  • Uterus
  • Vagina
  • Cervix
• Ovary


  Produces egg cells
• Oviduct (fallopian tube)


  Serves as passageway from the ovary to the uterus; Site of egg fertilization
• Uterus


  Serves as the site of egg implantation; Is where the fertilized egg develops