Summative Practice 4 – Question 1 & 2 (Form 5 Biology Textbook Exercise and Answer)

Question 1:(a) Are xylem vessels living or dead structures? Give a reason for your answer.(b) What is the main function of the xylem vessel? State three structural adaptations of the xylem vessels and their functions.(c) How are the adaptations in the roots of plants similar to the adaptations of the small intestines in humans for … Read more

Formative Practice 4.4 (Form 5 Biology Textbook Exercise and Answer)

Question 1:What does phytoremediation mean? Answer:Phytoremediation is one of the treatment methods which uses plants for the purpose or degradation, extraction or elimination of pollute substances from soil and water. Question 2:Name two uses of phytoremediation in daily life. Answer:(a) To treat waste water by eliminating heavy metals and trap nutrients and microorganisms.(b) To remove … Read more

Formative Practice 4.3 (Form 5 Biology Textbook Exercise and Answer)

Question 1:State the definition of translocation. Answer:The process of transporting organic substances such as sucrose, amino acids and hormones in the phloem from the leaves to other parts of the plant such as the roots and stem. Question 2:What is the role of translocation in plants? Answer:Translocation helps in transporting photosynthetic products from the leaves … Read more

Formative Practice 4.2 (Form 5 Biology Textbook Exercise and Answer)

Question 1:State the factors involved in the water and mineral salts pathway from soil to leaves. Answer:Root pressure, capillary action (adhesion and cohesion forces) and transpirational pull. Question 2:Give the definition of guttation and state its importance. Answer:Guttation is a secretion of water droplets through a special structure at the end of leaf veins without … Read more

Formative Practice 4.1 (Form 5 Biology Textbook Exercise and Answer)

Question 1:Do all plants need a transport system?Explain. Answer:No. Small plants like moss and algae have large surface areas to absorb water directly from its surroundings. Question 2:A tree is attacked by a type of bacteria which damages its xylem vessels. Predict the effects to the tree. Answer:The plant will die as the xylem cannot … Read more