Study

Natural Science Unit 1: Cells

  •   0%
  •  0     0     0

  • Give an example of a multicellular organism
    trees, butterflies...
  • what does the nucleus do?
    controls everything that happens in the cell
  • name 2 examples of non-seed plants
    ferns, mosses
  • What enters the leaf during photosynthesis? What is expelled?
    enters: CO2 and sunlight; expelled: oxygen
  • what is the cytoplasm?
    a thick, clear, liquid that is made of salts and water
  • What is the shape of nerve cells?
    star-shaped
  • what do plants need for photosynthesis?
    sunlight, water, mineral salts, and carbon dioxide
  • which systems do animals use for INTERACTION?
    locomotor and nervous system
  • What's an example of a plant system?
    Vascular system
  • What do red blood cells do?
    Carry oxygen from the lungs, to the muscles, to the organs
  • How do plants interact?
    roots grow towards water, sunflowers move with the sunlight
  • Which organelles/cell parts CAN'T be found in an animal cell? (there are 2!)
    cell wall, chloroplasts
  • What does unicellular mean?
    organism with only one cell
  • What are the small holes in leaves called?
    stomata
  • how do cells reproduce?
    they divide
  • What does viviparous mean?
    animals that reproduce by growing their young inside the mother's body
  • True or False: Plant cells have cytoplasm and vacuoles
    true
  • What process happens when male and female reproductive cells join?
    fertilisation
  • What substance is inside of chloroplasts?
    Chlorophyll
  • What shape are plant cells?
    rectangular or polygonal
  • Whats an example of a plant organ?
    leaf
  • What does elaborated sap contain?
    nutrients for the palnt
  • What's an example of a unicellular organism?
    Bacteria, yeast
  • What systems do animals use for nutrition? (Name 2)
    digestive system, respiratory system, excretory system
  • Where does photosynthesis take place in a plant?
    the leaves
  • What does oviviviparous mean?
    animals reproduce with eggs that hatch inside the mother's body
  • Put these in order from smallest to largest: tissue, cells, systems, organs
    cells, tissue, organs, systems
  • What are the basic life processes?
    interaction, nutrition, reproduction
  • What are the two types of seed pants?
    flower/fruit plants and cone plants
  • what does the membrane do?
    surrounds the cell, controls what goes in and out of cell
  • what do nerve cells do?
    Transmit nerve impulses from the brain to different parts of the body
  • what is the function of root hairs?
    increase the area of the root that is in contact with the soil
  • Give an example of a system in humans, and what it does
    ...
  • what does oviparous mean?
    animals that reproduce by laying eggs