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Class 10 Assignment Ch-07 – Control and Coordination

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CBSE Class 10 Assignment 6 – Control and Coordination Section A 1. Which of these plant hormones is a growth inhibitor a) Ethylene b) auxin  c) abscisic acid  d) cytokinin 2. Master gland of the body is: a) Testis b) pituitary c) thyroid d) adrenal 3.Which hormone brings about contraction of uterine wall, leading to labour pain? a) Estrogen b) progesterone c) relaxin d) oxytocin 4.People suffering from diabetes mellitus are unable to secrete: a) Insulin b) adrenaline c) thyroxin d) vasopressin 5.The activities of the internal organs are controlled by the: a) Central nervous system b) peripheral nervous system c) Autonomic nervous system d) none of these 6. The gap between two neurons is called a: a) Dendrite b) synapse c) axon d) impulse 7.the brain is responsible for: a) Thinking b) regulating heart beat c) balancing the body d) all the above Section B [Knowledge ] 8.Name the organ responsible for regulation of: a) Metabolism of carbohy...

Class X Control and Coordination solved Questions

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CBSE ADDA: 10th Control and Coordination solved Questions : CBSE class 10 Biology Chapter : control and coordination --- Trend Setter solved Problems 1. How does the nervous tissue cause action?   Ans:. When a nerve impulse reaches the muscle,the muscle fibre must move by changing their shape.this is  possible as muscle cells have special proteins that change both their shape and arrangement in the cell in response to nervous electrical impulses.when ths happens new arrangements of these proteins give the muscle different shapes.  2.Which organ secretes hormone when the  blood sugar  rises?name a digestive enzyme released by this organ. Ans: Pancreas secretes hormone insulin when sugar level rises.Digestive enzyme secreted by pancreas is  trypsin(that digests protein).......................   Read full post  Quick Revision Notes Ch: Control and  Co- Ordination Download File 10th C...

CBSE Class 9 - Biology - CH6 – Animal Tissues Trend Setter Solved Problems

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CBSE Class 9 - Biology - CH6 – Animal Tissues Trend Setter Solved Problems Q1: Based on functions performed, list the types of animal tissues. Answer: Four Category types: 1. Epithelial tissue 2. Connective tissue 3. Nervous tissue 4. Muscle tissue Q2: Which tissues are called covering or protective tissues? Answer: Epithelial Q3: Where do we find epithelial tissues on animal body? Answer: A few examples are:  skin  the lining of the mouth  the lining of blood vessels  lung alveoli  kidney tubules Q4: What are the general identifying features of epithelial tissues? Answer: 1. Tightly packed cells and form a continuous sheet. 2. Tissue is avascular i.e. without blood vessels. 3. All epithelium is usually separated from the underlying tissue by an extracellular fibrous basement membrane. Q5:Based on layer and shape of cells, how Epithelial tissues can be classified? Answer: 1. Squamous Epithelium 2. Cuboidal Epithelium 3. Colu...