10th Science Book Back Answers Unit 21 – Health and Diseases:
Samacheer Kalvi 10th Standard Science Book Back Questions with Answers PDF uploaded and the same is given below. Class-tenth candidates and those preparing for TNPSC exams can check the New Science Book Back Question and Answers PDF below. Samacheer Kalvi Class 10th Std Science Book Back Answers Biology Unit 21 – Health and Diseases Solutions are available below. Complete solutions for all 23 Units’ book back questions with a solutions guide uploaded and available on our site. Check the complete Samacheer Kalvi 10th Science Unit 21 Answers below:
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Samacheer Kalvi 10th Science Book Back Answers Biology Unit 21 – Health and Diseases:
Samacheer Kalvi 10th Science Book Subject One Mark, Two Mark Guide questions and answers are below. Check Science Book Back Questions with Answers. Take the printout and use it for exam purposes.
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10th Science – Biology
Unit 21: Health and Diseases
I. Choose the best answer:
1. Tobacco consumption is known to stimulate the secretion of adrenaline. The component causing this could be
a) Nicotine b) Tannic acid c) Curcumin d) heptin
Ans.: a) Nicotine
2. World ‘No Tobacco Day, is observed on
a) May 31 b) June 6 c) April 22 d) October 2
Ans.: a) May 31
3. Cancer cells are more easily damaged by radiations than normal cells because they are
a) Different in structure b) Non dividing
c) Starved mutation d) Undergoing rapid division
Ans.: d) Undergoing rapid division
4. Which type of cancer affects lymph nodes and spleen?
a) Carcinoma b) Sarcoma c) Leukemia d) Lymphoma
Ans.: d) Lymphoma
5. Excessive consumption of alcohol leads to
a) Loss of memory b) Cirrhosis of liver
c) State of hallucination d) Supression of brain
Ans.: b) Cirrhosis of liver
6. Coronary heart disease is due to
a) Streptococci bacteria b) Inflammation of pericardium
c) Weakening of heart valves d) Insufficient blood supply to heart muscles
Ans.: d) Insufficient blood supply to heart muscles
7. Cancer of the epithelial cells is called
a) Leukemia b) Sarcoma c) Carcinoma d) Lipoma
Ans.: c) Carcinoma
8. Metastasis is associated with
a) Malignant tumour b) Benign tumour c) Both (a) and (b) d) Crown gall tumour
Ans.: a) Malignant tumour
9. Polyphagia is a condition seen in
a) Obesity b) Diabetes mellitus c) Diabetes insipidus d) AIDS
Ans.: b) Diabetes mellitus
10. Where does alcohol effect immediately after drinking?
a) Eyes b) Auditory region c) Liver d) Central nervous system
Ans.: d) Central nervous system
III. True or False (Correct the Statement if it is false)
1. AIDS is an epidemic disease.
Ans.: True.
2. Cancer causing genes are called Oncogenes.
Ans.: True.
3. Obesity is characterized by tumour formation.
Ans.: False.
Correct statement: Cancer is characterized by tumour formation.
4. In leukemia both WBCs and RBCs increase in number.
Ans.: False.
Correct statement: In leukemia WBCs increase in number.
5. Study of cause of disease is called etiology.
Ans.: True.
6. AIDS is not transmitted by contact with a patient’s clothes.
Ans.: True.
7. Type 2 diabetes mellitus results due to insulin deficiency.
Ans.: False.
Correct statement: Type 1 diabetes mellitus results due to insulin deficiency.
8. Carcinogens are cancer causing agents.
Ans.: True.
9. Nicotine is narcotic drug.
Ans.: True.
10. Cirrhosis is associated with brain disorders.
Ans.: False.
Correct statement: Cirrhosis is associated with liver disorder.
III. Expand the following abbreviations:
1. IDDM 2. HIV 3. BMI 4. AIDS 5. CHD 6. NIDDM
Ans.:
1. IDDM – Type-1 Insulin Dependent Diabetes Mellitus
2. HIV – Human Immunodeficiency Virus
3. BMI – Body mass index
4. AIDS – Acquired Immunodeficiency Syndrome
5. CHD – Coronary heart disease
6. NIDDM – Type-2 Non-Insulin Dependent Diabetes Mellitus
IV. Match the following:
1. Sarcoma (a) Stomach cancer
2. Carcinoma (b) Excessive thirst
3. Polydipsia (c) Excessive hunger
4. Polyphagia (d) Lack of blood flow to heart muscle
5. Myocardial Infarction (e) Connective tissue cancer
Answer:
- (e) Connective tissue cancer
- (a) Stomach cancer
- (b) Excessive thirst
- (c) Excessive hunger
- (d) Lack of blood flow to the heart muscle.
V. Fill in the blanks
1. Cirrhosis is caused in liver due to excessive use of ______.
Ans.: Alcohol
2. A highly poisonous chemicals derived from tobacco is _______.
Ans.: Nicotine
3. Blood cancer is called ______.
Ans.: Leukaemia
4. Less response of a drug to a specific dose with repeated use is called _______.
Ans.: Drug tolerance
5. Insulin resistance is a condition in _______diabetes mellitus.
Ans.: Type 2
VI. Analogy-type questions. Identify the first words and their relationship and suggest a suitable word for the fourth blank.
a. Communicable: AIDS: Non-communicable: Ans: Diabetes.
b. Chemotherapy: Chemicals: Radiation therapy: Ans: Radiation.
c. Hypertension: Hypercholesterolemia: Glycosuria: Ans: Hyperglycemia
Other Important links for 10th Science Book Answers Solutions:
For the 10th Standard Science Unit 22 book back question and answers solutions PDF, check the link – Samacheer kalvi 10th Science Unit 22 – Environmental Management
Click here for the complete Samacheer Kalvi 10th Science Book Back Solution Guide PDF – 10th Science Book Back Solutions