25 cm3 of a solution of sodium hydroxide reacts with 15 cm3 of 0.1 mol/dm3 HCl. What is the molar concentration of the sodium hydroxide solution? 4. Succinic acid has the formula (CH2)n(COOH)2 and reacts with dilute sodium hydroxide as follows: (CH2)n(COOH)2 + 2NaOH → (CH2)n(COONa)2 + 2H2O 2.0 g of succinic acid were dissolved in water and the solution made up to 250 cm3. This solution was placed in a burette and 18.4 cm3 was required to neutralise 25 cm3 of 0.1 moldm-3 NaOH.
Peristalsis is a) a wave of distension b) a wave of contraction c) voluntary muscular activity d) recoil following distension 20. The term 'pica' means a) extreme weight loss b) abnormal, depraved appetite c) excessive straining to pass faeces or urine d) rapid involuntary movements of the eyeball 14. Which of the following is a function of the kidney? a) production of urea b) storage of glycogen c) assimilation of protein d) production of erythropoietin 21. Absorption of nutrients occurs mainly from the a) liver b) colon c) stomach d) small intestine 15.
What is a function of the lymphatic system g. Absorb digested fats h. Produce & Mature immune cells i. Reabsorb extracellular fluid & Return it to the bloodstream j. All the above 3. Which type of WBC can travel out of the blood and turn into a macrophage to perform phagocytosis in the tissues? k. Basophil l. Eosinophil m. Neutrophil n. Monocyte 4. Regulating Temperature is NOT a function of the Lymphatic System o.
Red Blood Analysis: Presence indicates renal dysfunction. Chemistry: * Genetic Screening indicates that Mr. Newman has a mutation on Chromosome 16. * The mutation results in the formation of an abnormal membrane protein called polycystin. Cellular Defects: * A genetic mutation has resulted in the formation of cysts in Mr. Newman’s kidneys. * Cysts form when cells in a region of the nephron divide rapidly.
Results Table 2. Concentration of Thyroxine and Thyroid Stimulating Hormone (TSH) in Blood Serum Normal Thyroxine (mg/l) TSH (mIU/l) Type of thyroid disorder 0.05-0.14 0.35-4.5 Value 0.23 0.07 Patient 1 Status High Low Hyperthyroidism Value 0.01 9.74 Patient 2 Status Low High Primary Hypothyroidism Value 0.02 0.18 Patient 3 Status Low Low Secondary Hypothyroidism 1. The normal range for total amount of Thyroxine in serum is 0.05 - 0.14 mg/L. For each patient, type in their serum Thyroxine concentration and indicate if it is lower, within, or higher than the normal range. a.
* Question 1 1 out of 1 points | | | Which of the following is not a cardinal sign of diabetes mellitus? | | | | | Selected Answer: | All of these are signs. | Answers: | polyuria | | polydipsia | | polyphagia | | All of these are signs. | | | | | * Question 2 1 out of 1 points | | | ADH ________. | | | | | Selected Answer: | is inhibited by alcohol | Answers: | increases urine production | | promotes dehydration | | is produced in the adenohypophysis | | is inhibited by alcohol | | | | | * Question 3 1 out of 1 points | | | Normal development of the immune response is due in part to hormones produced by the ________.
Give an example of each of the following solutes: a. Ions/electrolytes sodium b. Colloids proteins c. Nonelectrolytes glucose 6. List the major extracellular and intracellular cations and anions a. Extracellular cations: sodium, potassium, calcium, & magnesium anions: bicarbonate, sulfate, phosphates, & chloride b. Intracellular cations: sodium, potassium, & magnesium anions: bicarbonate, sulfate, phosphates, & chloride 7. Within a fluid compartment, the total number of positive charges must be equal to the total number of negative charges. 8. Name four of the seven functions given for electrolytes: a. secondary active transport b. muscle contraction c. cofactors for enzymes d. action potentials 9.
Learning more about red blood cells, Zelman, Tompary, Raymond, Holdaway & Mulvihill (2010) stated, “Erythrocytes, or red blood cells (RBCs), make up about half the blood’s volume” (p. 152). These cells carry oxygen from the lungs to your body’s tissue and take carbon dioxide back to your lungs then exhaled. However, there is more to the blood then just red blood cells. Blood also contains thrombocytes, also known as platelets, which are small, colorless fragments in the blood whose main function is to interact with clotting proteins to stop or inhibit bleeding. There is also a fluid in the blood called plasma.
5-6 liters B. 3-4 liters C. 8-10 liters D. 10-12 liters 4. Red blood corpuscles are formed in the A. Liver B. Bone marrow C. Kidneys D. Heart 5. How many bones are there in an adult human being?
5 marks HL Award 1 mark for each of the following structures clearly drawn and labelled correctly. * outer membrane * intermembrane space / outer compartment * inner membrane * matrix * cristae * ribosome * naked / circular DNA * ATP synthase Do not accept plasma membrane. 5. Explain how the structure of the mitochondrion allows it to carry out its function efficiently. 8 marks HL * membranes to compartmentalise / separate from processes in the cytoplasm * small size gives large surface are to volume ratio * large surface area to volume ratio allows rapid uptake / release of materials * matrix contains enzymes of the Krebs cycle / matrix carries out Krebs cycle * inner membrane invaginated /