7.2. Digestive system
A subsection of Biology, 0610, through 7. Human nutrition
Listing 10 of 103 questions
For Examiner's Use is a diagram of the human digestive system. A B C D E F G H J Use the letters from to complete Table 1.1 to give the part of the human digestive system that is identified by each function. Write one letter only in each box. You may use the same letter more than once. There are some letters that you will not use. The first one has been done for you. Table 1.1 function letter peristalsis B protein digestion insulin production deamination partially digested food is mixed with bile most water is reabsorbed For Examiner's Use The human diet provides nutrients for the synthesis of biological molecules that make up cells, cell products and tissues. Complete Table 1.2 to show the nutrients that are absorbed from food to synthesise the large molecules listed. Table 1.2 large molecules nutrients absorbed protein glycogen fat Mineral ions are required in the human diet in small quantities. State the mineral ion required for each process: making bone making haemoglobin. State another type of nutrient required in the human diet in small quantities. For Examiner's Use One role of nutrients is to provide materials for the repair of damaged tissues. shows the events that happen after a cut to the skin. immediately after the cut 24 hours later 3 to 7 days later 2 weeks later epidermis damaged capillary released blood scab blood clot phagocytes new capillary Use the information in to describe what happens to seal the wound in the skin and repair the skin tissue.
0610_s12_qp_31
THEORY
2012
Paper 3, Variant 1
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State three uses of energy in the human body. shows part of the digestive system of a human. diaphragm L K H C D E B A G F Complete Table 1.1. One row has been done for you. Table 1.1 function name of structure letter from pushes food to the stomach oesophagus A assimilation of amino acids to produce plasma proteins storage of bile secretion of insulin absorption of fatty acids and glycerol secretion of pepsin digestion of starch Describe the role of the liver in the recovery from oxygen debt after strenuous exercise. Alcohol is a drug. Define the term drug. State two immediate effects of excessive alcohol on the body. State two long-term effects of excessive alcohol on the body. Pregnant women are advised not to drink alcohol as it may have harmful effects on the fetus. Outline these harmful effects. State two harmful substances other than alcohol that can cross the placenta.
0610_s20_qp_43
THEORY
2020
Paper 4, Variant 3
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The four boxes on the left contain definitions of processes carried out by the alimentary canal. The six boxes on the right contain the names of processes. Draw a straight line to join each definition to the matching process. Draw only four lines. The breakdown of large, insoluble molecules into small, soluble molecules. The movement of digested food molecules into the cells of the body where they are used, becoming part of the cells. The passing out of food that has not been digested or absorbed, as faeces, through the anus. The taking of food substances, e.g. food and drink, into the body through the mouth. absorption assimilation chemical digestion egestion mechanical digestion ingestion definition process shows yeast being used to produce alcohol. A mixture of yeast and fruit juice is placed in a jar. Fruit juice contains sugar. A valve lets gas out of the jar but stops gas from entering the jar. valve gas escaping from the liquid jar mixture of yeast and fruit juice State the name of the process that the yeast uses to make alcohol. State the name of the gas produced when yeast makes alcohol. State the name of the gas that must be stopped from entering the jar when alcohol is being made. State the name of the group of chemicals that yeast uses to catalyse the breakdown of glucose molecules. Choose your answer from the list. antibiotics antibodies enzymes hormones
0610_s21_qp_33
THEORY
2021
Paper 3, Variant 3
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Questions Discovered
103