1st Year Biology Chapter 14 Notes
Important Complete Computerized 1st Year Biology Chapter 14 Notes Transport written by Professor Mr. Adnan Haider Suib. These notes are very helpful in the preparation of Transport of First Year Biology for the students of the intermediate and these are according to the paper patterns of all Punjab boards.
Summary and Contents:
Topics which are discussed in the notes are given below:
- Our comprehensive 1st Year Biology Chapter 14 Notes will ensure you're fully prepared for your exams.
- 1. A contractile pumping device: (a) Vein (b) Heart (c) Liver (d) Lung
- 2. The open circulatory system is present in: (a) Runa tigrina (b) Amphioxus (c) Pheretima (d) Periplaneta
- 3. Normal pH of human blood is: (a) 6.4 (b) 5.4 (c) 4.4 (d) 7.4
- 4. Which of the following is not true about histamine? (a) Cause inflammation (b) Produced by basophills (c) Causes dilation of blood capillaries (d) Released by Eosinophils
- 5. Platelets are fragments of large cells called: (a) Erythrocytes (b) Microkaryoctyes (c) Leucocytes (d) Megakaryocytes
- 6. One cubic millimeter of human male blood contain RBC: (a) 6 - 6.5 millions (b) 5 - 5.5 millions (c) 7 - 7.5 millions (d) 4 - 4.5 millions
- 7. In the embryonic life the red blood cells are formed in: (a) Liver and spleen (b) Red bone marrow (c) In bone marrow of sternum and ribs (d) Bone marrow of vertebrae
- 8. The plasma proteins constitute percent by weight of plasma: (a) 13 - 15 % (b) 11 - 13 % (c) 9 - 11 % (d) 7 - 9 %
- 9. The mammalian red blood cells are: (a) Concave (b) Biconcave (c) Convex (d) Biconvex
- 10. Histamine is produced by: (a) Moncytes (b) Eosinoophils (c) Basophils (d) Neutrphils
- 11. Closed circulatory system in observed in animals belonging to annelids , cephalopod
molluscs ( squids and octopus ) , echinoderms and: (a) Mollusca (b) Vertebrates (c) Tunicates (d) None of these
- 12. Closed circulatory system have respiratory pigment: (a) Haemo cymin (b) Both A & D (c) None of these (d) Haemoglobin
- 13. The uncontrolled production of white blood cells result in: (a) Thalassaemia (b) Leucaemia (c) Asthma (d) Oedema
- 14. Thalassaemia is also called: (a) Mendl's anaemia (b) Thomas anaemia (c) Cooley's anaemia (d) Pete's anaemia
- 15. Enlargement of spleen is seen in: (a) Odema (b) Hepatitis (c) Thalassaemia (d) Blood cancer
- 16. ………….. is employed in treatment of cancer: (a) Gene therapy (b) Chemotherapy and cloning (c) Radiotherapy and chemotherapy (d) Gene therapy
- define osmotic or solute potential.
Ans: It is the component of water potential that takes into account the concentration of
solutes in the cell. It is represented by Ψs and is always negative.
- What do you know about active transport?
Ans: Transfer of substances from region where its concentration is low to where it is high
especially through a membrane accomplished by means of expenditure of energy from
metabolism. Probably all cells can do this.
- Q18: write a short note on heart attack. Ans: Blockage of blood vessel in the heart by an embolus causes necrosis or damage to
portion of heart muscles, a condition known as heart attack or technically myocardial
infarction. Heart attack is due to disruption of control system of the heart with
accompanying arrhythmia, especially ventricular fibrillation.
- Q1: In the process of facilitated diffusion, the carrier molecules are ……… .
- Q2: …… in 1874 suggested that water molecules move along the cells walls of xylem vessels
dueto imbibition.
- Q3: The most abundant compound of blood plasma of man is ………. .
- Q4: The substance produced by basophils which inhibits blood-clotting is ……….. .
- Q5: The insects which feed on the phloem of plants are the ……….. .