1) How do hormones travel around the body? 2) Name the process where cells divide. 3) What are stem cells? 4) What is the function of the cerebrum? 5) Describe the first stage of a reflex arc. 6) Name the vessel which carries blood from the body into the heart. 7) Describe stage 1 of mitosis. 8) What processes are stem cells involved in? 9) State the hormone the pancreas releases in response to a decrease in blood glucose levels. 10) Name the female gamete in animals. 11) Are zygotes haploid or diploid? 12) What is continuous variation? 13) Describe stage 4 of mitosis. 14) If a parent cell has 24 chromosomes how many chromosomes will one daughter cell have? 15) Describe the hierarchy that exists in multicellular organisms. 16) What does haploid mean? 17) What is the function of the effectors? 18) Explain what a chromatid is 19) Name the three parts of the brain. 20) Describe stage 5 of mitosis. 21) What is the function of the sensory neuron? 22) If an animal had a diploid number of 32, how many chromosomes would be present in each sperm cell? 23) What is the function of the inter neuron? 24) Explain why hormones only have an effect on their target tissues and not others. 25) Name the two hormones released by the pancreas. 26) Where in the body are the inter neurons found? 27) Which term is used to describe two different alleles of a genotype i.e. Aa or Bb? 28) What does insulin stimulate the liver to do? 29) Put the following reflex pathway in to the correct order - motor neuron, muscle, inter neuron in the spinal cord, receptor in the sense organ, sensory neuron 30) What is the name of the storage carbohydrate found in the liver? 31) Name the organ which produces the male gamete in plants. 32) Explain the response of the body to a decrease in blood glucose levels using the following words (pancreas, glucagon, liver, glucose and glycogen) 33) Name the structures found on the surface of target tissues which hormones bind to (these ensure that only that specific tissue will be affected by these hormones) 34) Why would a cell be described as haploid? 35) What is the function of the motor neuron? 36) Are pollen cells haploid or diploid? 37) Name the male gamete in animals. 38) Name the male gamete in plants. 39) Name the gaps found between neurons. 40) Name the organ which produces the female gamete in animals. 41) What does diploid mean? 42) Name the organ which produces the female gamete in plants. 43) What is transpiration? 44) Name the two main parts of the nervous system 45) Explain what happens during fertilisation. 46) Give the definition of a species. 47) How do messages get transferred between neurons? 48) Describe stage 2 of mitosis. 49) Give two examples of continuous variation. 50) Which structure is found in the small intestine which absorbs nutrients from food? 51) Give two examples of discrete variation. 52) What type of blood is carried into the heart from the body? 53) Multicellular organisms produce sex cells to go through reproduction. What are these sex cells known as? 54) Give the definition of an allele. 55) Name the three generations in a monohybrid cross 56) Describe the structure of veins. 57) Which term is used to describe the two alleles being the same for a genotype i.e. AA or aa? 58) What is the name given to the areas of the body that release hormones? 59) What type of inheritance leads to discrete variation? 60) Which term is used to describe the physical appearance expressed by an organism due to their genotype? 61) Describe stage 3 of mitosis. 62) Why do tissues contain capillary networks? 63) What do genes code for? 64) Name the vessel in a plant that carries water and minerals. 65) Explain the difference between dominant and recessive alleles. 66) What is the effect of an increase in wind speed on the rate of transpiration? 67) Name the three plant organs. 68) Apart from wind speed and humidity name one other factor which can affect the rate of transpiration. 69) Are the cells that make up the phloem vessel living or dead? 70) Name the two parts that make up the phloem vessel. 71) What name is given to the top layer of a leaf? 72) Name the different components of the blood in mammals. 73) What does the blood in mammals transport? 74) Name the three types of neurons in order. 75) Which type of inheritance involves many genes acting together to control one characteristics? 76) Name the part of the villi which absorbs fatty acids and glycerol 77) Name the four chambers in a heart. 78) In what form do red blood cells transport oxygen in? 79) Name the vessel which carries blood from the heart to the lungs. 80) What is the function of the medulla? 81) Name the vessel which carries blood from the heart to the body. 82) Describe how the structure of a root hair cell helps them to carry out their function. 83) What type of blood is carried from the lungs into the heart? 84) Describe the function of arteries. 85) Describe the role of the pallisade mesophyll layer in a leaf. 86) What is the function of Capillaries? 87) What is the function of valves? 88) What effect do large surface area, thin walls and extensive blood supply have? 89) Name the gas exchange organ in the body. 90) Name the part of a villi which absorbs amino acids.
National 5 Unit 2
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