Mark-Schemes

Marking Scheme: Coordination and Response This is the marking scheme for quiz: Coordination And Response Section 1: Core Syllabus Question 1 An automatic [1] Rapid/unconscious response to a stimulus [1] Question 2 (a) Muscle or gland that carries out the response [1] (b) Protects the organism from harm [1] by reacting quickly without waiting for brain processing [1] Question 3 Insulin [1] Question 4 (a) Growth of a plant [1] in response to light [1] (b) Auxin [1] ...

Marking Scheme: Metals This is the marking scheme for quiz: Metals Section 1: Core Syllabus Question 1 Good conductor of heat [1] Good conductor of electricity [1] Malleable / Ductile / High melting point / Lustrous (Any one) [1] Question 2 A list of metals [1] Arranged in order of their reactivity/decreasing reactivity [1] Question 3 (a) Bright white light / intense white flame [1] (b) $2Mg(s) + O_2(g) \rightarrow 2MgO(s)$ [2] (1 for correct formula, 1 for balancing) ...