Study

National 5 Biology Unit 2 2.1-2.3

  •   0%
  •  0     0     0

      Back   Restart
  • the brain is an example of
    an organ
    a system
    a tissue
    a cell
  • What part of the brain controls balance and coordination?
    cerebrum
    cerebellum
    medulla
  • What term describes the fusion of the nuclei of the sperm and the egg to form a zygote?
    fertilisation
    ovidiuct
    reproduction
    reproduction
  • Which is in the correct order
    cells-tissue-organs-systems
    cells-organs-tissue-systems
    systems-cells-tissue-organs
    tissue-cells-organs-systems
  • What are the Gonads
    testis and ovaries
    testis
    overies
    testis and the sperm duct
  • The order of nerves along a reflex arc is....
    sensory - inter - motor
    inter - motor - sensory
    sensory - motor - inter
    motor - inter - sensory
  • Why do cell divide in multicellular organisms
    reproduce
    growth and repair
    strengthen the blood vessels
    increase their numbers
  • In Mitosis what is the stage after chromosomes thicken and shorten
    a new nuclear membrane forms
    the chromosomes line up at the equater
    the cytoplasm divides and two daughter cells are formed
    Each chromosome doubles to form two identical chromatids
  • Why is it important the daughter cells receive the full set of chromosomes?
    maintain their cell size
    answer 2 and 3
    so that they can function properly
    has the same genetic information as parents
  • What are the basic units of life?
    organs
    tissues
    systems
    cells
  • Where does fertilisation occur in animals?
    oviduct
    ovary
    uterus
    vagina
  • R.A.P is used to summarise a protective mechanism in the body. What is it called
    reflection arc
    reflex arc
    effector
    reflex neuron
  • Cells that can divide and differentiate into specialised cells are....
    embryonic cells
    magic
    tissue cells
    stem cells
  • What is the name given to cell division
    Myoloses
    fertilisation
    Mitosis
    reproduction
  • Which of the following is NOT a feature of red blood cells?
    contain haemoglobin
    biconcave shape
    has a cell wall
    no nucleus
  • When the nuclei of a sperm fuses with a nuclei of an egg what is produce
    a baby
    ovary
    an embryo
    a zygote
  • Where is pollen produced?
    anther
    flower
    stigma
    ovary
  • What does the nervous system consist of?
    Brain and spinal cord
    Brain, spinal cord and nerves
    Sensory, inter and motor
    all the nerves
  • What do hormones attach when the reach the target tissue?
    cytoplasm
    its cell wall
    receptor phospholipids
    receptor proteins
  • Sex cells are...
    diploid
    quadroid
    triploid
    haploid
  • What is the gap between neurones called?
    diffusion
    reflex
    synapse
    sinuses
  • What structure attaches to the centromere of each chromosome and helps pull them apart?
    another centromere
    the equator
    spindle fibres
    the poles
  • In animals what is excess glucose stored as?
    glycogen
    starch
    glucagon
    insulin
  • What part of the brain controls heart rate and breathing rate?
    medulla
    cerebrum
    cerebellum
  • What are hormones made of?
    protein
    carbohydrate
    sugar
    fats
  • Which cells can reproduce and differentiate into the greatest variety of specialised cells
    embryonic stem cells
    adult tissue stem cells
    neurons
    liver cells
  • Does the Reflex arc need a signal from the brain to initiate a responce
    no
    sometimes
    yes
  • What disease results from the body being unable to control blood glucose?
    parkinsons
    respiratory disease
    angina
    diabetes
  • Which of the following is NOT true about hormones?
    they are chemical messengers
    they are carried in the blood
    they are a type of protein
    they are fast acting
  • Where are the hormones insulin and glucagon produced?
    pancreas
    testis
    liver
    brain
  • How many sets of chromosomes do diploid cells contain?
    4
    1
    3
    2
    • Your experience on this site will be improved by allowing cookies.