NECO Biology · Concept of living
Transport system: NECO Biology Past Questions and Answers
What the WAEC syllabus covers in Transport system
Our summary: Why organisms need transport, how blood and lymph move materials in animals, and how water, minerals and food move in plants.
- Need for transport: surface area/volume ratio; substances have to move greater distances (Source of materials and forms in which they are transported and where they are transported to should be studied. Media of transport: cytoplasm in cells, cell sap or latex in most plants and body fluid in invertebrates.)
- Transport in animals: structure of the heart, arteries, veins and capillaries; composition and function of blood and lymph; materials for transport: excretory products, gases, digested food, and other nutrients (Candidates should be familiar with the general circulatory system. Open circulatory systems in invertebrates. The names of the blood vessels responsible for transporting excretory products, gases, digested food and other nutrients should be mentioned.)
- Transport in plants: uptake and movement of water and mineral salts in plants (Description of uptake of water and mineral salts from the soil into a plant. Movement of water and mineral salts through the plant. Experiments using eosin solution to show water and mineral salts uptake.)
- Translocation (Movement of organic materials from leaves to roots. Basic theories (pressure flow hypothesis and cytoplasmic streaming) underlying translocation. Ringing experiment to demonstrate that transport of synthesized organic nutrients occurs through the phloem.)
- Transpiration (Advantages and disadvantages of transpiration. Types of transpiration. Environmental factors affecting transpiration. Determination of the rate of transpiration.)
- Movement of water to the apex of trees and herbs (Physiological factors affecting the rise of water in the xylem: root pressure, transpiration, cohesion-tension mechanism, adhesion, water potential gradient. Experiments to measure the rate of transpiration.)
Syllabus content © The West African Examinations Council (WASSCE (harmonised West African syllabus)). NECO questions are matched to the WAEC syllabus topic.
NECO Biology questions on Transport system
- NECO 2009Digested food is carried from small intestine to the liver by the
- NECO 2005Blood carrying digested food from the small intestine flows into the liver via the
- NECO 2005All these statements are correct about a vein EXCEPT that it
- NECO 2004The tricuspid valve is located between the
- NECO 2004In which of the following blood vessels does exchange of materials occur
- NECO 2004Xylem tissue consists of the following cells EXCEPT
- NECO 2003Thrombocytes are responsible for
- NECO 2003The rate of transpiration of a leafy shoot can be measured with
- NECO 2003Translocation of food substances in plants takes place through
- NECO 2002Oxygenated blood from the lungs is carried to the left atrium of the heart through the
- NECO 2002The pro-condition for transfusion of blood to an accident victim is
- NECO 2001The tissue which carries organic food from its site of production to all other parts of the plant is called the
- NECO 2001The instrument used to measure the rate of transpiration in plants is called a/an
- NECO 2001The blood vessel that supplies blood rich in digested food to the liver is the
- NECO 2001The movement of food in soluble form within the vascular bundles to all parts of the plant is known as
Years with Transport system questions in DeeepSolve's question bank
From the past questions DeeepSolve holds, not a count of everything the exam body has set.
- 2009
- 2005
- 2004
- 2003
- 2002
- 2001