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Focus Area Plus One Botany 👉  Notes (PDF) 👉 Questions & Answers Focus Area Plus One Zoology 👉  Notes (PDF) 👉  Questions & Answers 👉  Online Test Focus Area Plus Two Botany 👉  Notes (PDF) 👉 Questions & Answers Focus Area Plus Two Zoology 👉  Notes (PDF) 👉  Questions & Answers

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Focus Area 2021 | Questions and Answers | Plus One Zoology The living world Animal Kingdom Structural Organization in Animals Biomolecules Digestion and Absorption Breathing and exchange of gases Body fluids and circulation Excretory products & their elimination Locomotion and movement Neural control and co-ordination Chemical Coordination & Integration 👉 PDF DOWNLOAD

CHEMICAL COORDINATION AND INTEGRATION 1.   Complete the given table appropriately. (Score 3) Gland Hormones Function (A) ............ Androgens Development of male accessory sex organs Adrenal medulla (B) .............. (C) ................ (D) ............ Glucagon Maintains normal blood glucose levels Pineal (E) .............. (F) .................. Answer: (A) Testis (B) Adrenalin & Noradrenalin (C) Response to stress emergency situations (Hormones of fight or flight). (D)  Pancreas (E) Melatonin (F) Regulates diurnal (24-hour) rhythm. 2.  Identify the picture and label the parts A, B, C, D. (Score 2) Answer: Hypothalamus and pituitary. A= Hypothalamus                    B= Posterior Pituitary C= Anterior pituitary                D= Portal circulation 3. Note the rela

NEURAL CONTROL AND COORDINATION 1.     Neurons are the structural and functional units of the neural system. Given below is the structure of a typical neuron. Label A to F. (Score 3) Answer: A= Dendrite                B= Cell body C= Axon                     D= Myelin sheath E= Node of Ranvier   F= Synaptic knob 2. Distinguish between Electric synapse and Chemical synapse. (Score 2) Answer: Electric synapse: The membranes of pre-and post-synaptic neurons are nearer. Faster impulse transmission. Chemical synapse: There is a fluid-filled space (synaptic cleft) between the presynaptic neuron and the postsynaptic neuron. 3. In…(A) type of synapse the membranes of pre-synaptic and post-synaptic neurons are in very close proximity In…(B)... type of synapse the membrane of pre-synaptic and post-synaptic neurons are separated by a fluid-filled space. (Score 2)      a) Name the type of synapse A and B.      b) Name the fluid-filled space in the synapse B. A