CBSE Class 10 Biology Life Processes Worksheet Set C

Read and download free pdf of CBSE Class 10 Biology Life Processes Worksheet Set C. Download printable Science Class 10 Worksheets in pdf format, CBSE Class 10 Science Chapter 6 Life Processes Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Science Class 10 Assignments and practice them daily to get better marks in tests and exams for Class 10. Free chapter wise worksheets with answers have been designed by Class 10 teachers as per latest examination pattern

Chapter 6 Life Processes Science Worksheet for Class 10

Class 10 Science students should refer to the following printable worksheet in Pdf in Class 10. This test paper with questions and solutions for Class 10 Science will be very useful for tests and exams and help you to score better marks

Class 10 Science Chapter 6 Life Processes Worksheet Pdf

Life Processes Notes Class 10 Science

Autotrophic nutrition :- Organisms synthesise their food from simple inorganic substances .
* Photosynthesis:- it is a complex process by which green plants synthesise their food
* 6CO2 + 12H2O → C6H12O+ 6O+ 6HO
* Sites of photosynthesis:- chloroplasts containing chlorophyll
* events in photosynthesis:-
a. Absorption of light energy by chlorophyll.
b. Conversion of light energy into chemical energ and splitting of water molecule in into hydrogen and oxygen.

Reduction of carbon di oxide to carbohydrates .
Photosynthesis- A process in which green plants takes carbon dioxide and water and converts them into carbohydrates in the presence of sunlight and chlorophyll. 6CO2+6H2O Sunlight C6H12O6+6O2 Chlorophyll

Mechanism:
(i) Absorption of light energy by chlorophyll.
(ii) Conversion of light energy to chemical energy.
(iii) Splitting of water molecules (H2O) into hydrogen and oxygen.
(iv) Reduction of carbon dioxide to carbohydrate.

2. Heterotrophic nutrition :-
a. Holozoic nutrition :- Complex food molecules are taken in .
Ex. Herbivores, carnivores and omnivores.
b. Saptrotrophic nutrition:-
* feed upon dead organic matter, breakdown complex molecul outside the body then absorb.
Ex. Fungi, mushroom, yeast and bacteria .
c. parasitic nutrion :- Parasites obtain their nutrition from their host without killing them.

NUTRITION IN HUMAN BEING

""CBSE-Class-10-Biology-Life-Processes-Worksheet-Set-C

*Alimentary canal:-
Mouth ( tongue + teeth ) ,oesophagus, stomach, small intestine, large intestine , anus .

* Digestive glands ;- 1. salivery glands (saliva - salivery digests starch into sugars.

2. Stomach – gastric glands –
a. HCL – Creats an acidic medium , kills bacteria and other microorganisms.
b. pepsin – digests protein .
c. Mucus – Protects the lining of stomach from HCL.
3. Liver – bile juice – emulsification .
4. Pancreas- pancreatic juice – digests carbohydrates, fats amylaseand Intestine – intestinal juice - digests carbohydrates, fat and lipids.

RESPIRATION

Aerobic respiration :- complete breakdown of food in the presence of oxygen , large amount of energy .

Anerobic respitaion :- Incomplete breakdown of food in the absence of oxygen , small amount of energy.

""CBSE-Class-10-Biology-Life-Processes-Worksheet-Set-C-1

Exchange of gases in plants :- in leaves ( stomata ) , in stems ( lenticels), roots.

Exchange of gases in animals:-
In aquatic animals :- Through gills and body surface .
In terrestrial animals:- Moist skin (earthworm, frogs), spiracles and air tubes,( cockroach) , lungs ( birds, reptiles and mammals)

Human Respiratory System

""CBSE-Class-10-Biology-Life-Processes-Worksheet-Set-C-2

TRANSPORTATION
1.Human circulatory system consists of blood, the heart and network of blood vessels.
2.Blood:- is a specialized connective tissue consisting of plasma , RBCs, WBCs and platelets.
3.Lymph :- Is similar to blood with less proteins. It absorbs fat from intestine and drains back excess fluid to blood.
4.Blood pressure :- force exerted by the blood on the walls of blood vessels . It is measured by sphygmomanometer.
The normal range of BP in human is 120/80 mmHg

 
""CBSE-Class-10-Biology-Life-Processes-Worksheet-Set-C-4
 
Transportation in plants :-
* Xylem transport transport water and minerals . It occurs due to transpiration pull and root pressure.
* Phloem transport the food by using energy ( translocation ) .
 
EXCRETION
Unicellular animals excrete through their body surface ( diffusion ).
Nephrons are structural and functional units of kidneys .
Formation of urine :- it involves three stages
* Ultra filtration in glomerulus .
* Selective reabsorption of useful substances
* tubular secretion
 
""CBSE-Class-10-Biology-Life-Processes-Worksheet-Set-C-5
 
Excretion in plants
Gaseous waste products are excreted through stomata and lenticels.
Liquid waste products ( water , gums resins etc ) are excreted through stomata or hydathodes.
Solid waste products are stored in cellular vacuoles . plants get rid of them by falling their leaves .
 
 
MCQ Questions for NCERT Class 10 Science Life Processes

Question. Large intestine in man mainly carries out
(a) absorption
(b) assimilation
(c) digestion of fats
(d) digestion of carbohydrates

Answer : A

Question. In which mode of nutrition an organism de-rives its food from the body of another living organism without killing it?
(a) Saprotrophic nutrition
(b) Parasitic nutrition
(c) Holozoic nutrition
(d) Autotrophic nutrition

Answer : B

Question. A gland not associated with the alimentary canal is
(a) liver
(b) salivary glands
(c) pancreas
(d) adrenal

Answer : D

Question. The site of photosynthesis in the cells of a leaf is
(a) chloroplast
(b) mitochondria
(c) cytoplasm
(d) protoplasm

Answer : A

Question. The unit of kidney is called
(a) Bowman’s capsule
(b) glomerulus
(c) nephron
(d) collecting tubule

Answer : C

Question. Which is not the function of kidney?
(a) Synthesis of urea
(b) Excretion of urea
(c) Reabsorption of water
(d) Secretion

Answer : A

Question. If the loop of Henle is abolished
(a) tubular secretion will not take place
(b) bile will not be excreted
(c) water content in urine would be higher
(d) uric acid will not be excreted

Answer : C

Question. Correct route of the passage of urine is
(a) collecting tubule—ureter—urinary bladder—urethra
(b) convoluted tubule—loop of Henle—urinary bladder
(c) ureter—urethra—urinary bladder
(d) urethra—urinary bladder—ureter

Answer : A

Question. Where does the pelvis of kidney lie?
(a) In cortex
(b) In medulla
(c) In ureter
(d) In urinary bladder

Answer : B

Question. Which of the following is/are correct about heart?
(a) Left ventricle receives pure blood.
(b) Right ventricle pumps impure blood.
(c) Left atrium has thicker wall than the right ventricle.
(d) Right atrium opens into the left ventricle.

Answer : A

Question. Mammalian kidney is
(a) oval
(b) cylindrical
(c) bean shaped
(d) trilobed

Answer : C

True and False :

Question. The release of energy in aerobic process is less than in anaerobic process. 
Answer : False

Question. Before testing for starch, chlorophyll has to be removed from the leaf as it interferes in the test for starch due to its green colour. 
Answer : True

Question. The respiration in plants occurs at a fast rate whereas the respiration in animals occur at a much slower rate. 
Answer : False

Question. The process in which the absorbed food is taken in by body cells and used for energy, growth and repair is called egestion.
Answer : False

Question. The length of small intestine in a human adult is about 3.5 m.
Answer : False

Question. Lymph and plasma have the same chemical composition.
Answer : True

Question. Distal convoluted tubule opens in the loop of Henle.
Answer : False

Question. Filtrate is hypotonic in proximal tubule.
Answer : True

Question. Kidney produces RBC.
Answer : False

Question. Blood capillaries are lined with cuboidal cells.
Answer : False

Question. Afferent arteriole brings blood to the nephron.
Answer : True

Fill in the Blanks :

Question. ………. is the longest part of the alimentary canal.
Answer: Small intestine

Question. The process in which the digested food passes through the intestinal wall into blood stream is called ________ .
Answer: absorption

Question. The teeth covered with a sticky, yellowish layer of food particles and bacteria is called _____________ .
Answer: plaque

Question. The blood has ………. cells which plug the leakage in the vessels by helping to clot the blood at the point of injury.
Answer: platelet

Question. ………. transports products of photosynthesis from the leaves to other parts of the plant.
Answer: phloem

Question. Iodine turns blue-black on reacting with _____________ .
Answer: starch

Question. The energy produced during respiration is stored in the form of ATP which stands for _____________ .
Answer: Adenosine Tri-phosphate

Question. Pyruric acid is a three carbon compound which is also known as _____________ .
Answer: pyruvate

Question. Rings of cartilage are present in the wind pipe to ensure that the ………. .
Answer: air-passage does not collapse

Question. ………. is the site of the complete digestion of carbohydrates, proteins and fats.
Answer: Small intestine

Question. Heart of fish pumps ...... blood, whereas the heart of bird pumps ...... blood.
Answer: deoxygenated, oxygenated

Question. The unit of kidney is called ...... .
Answer: nephron

Question. The duct that emerges from kidney is called ...... .
Answer: ureter

Question. The dialyser works as kidney except ...... .
Answer: selective absorption

Question. Heart is largely composed of ...... muscles.
Answer: cardiac

Question. The bunch of blood capillary in nephron is called ...... .
Answer: glomerulus

Question. Valves prevent ...... flow of blood and are also present in ...... .
Answer: back, heart

                 A                               B

(i) Right atrium                      (a) Oscilloscope screen
(ii) ECG                                 (b) Amphibia
(iii) Auricle                            (c) Vena cava
(iv) Three-chambered heart    (d) Fish
(v) Two-chambered heart       (e) Atria


Answer: (i)(c)  (ii)(a)  (iii)(e)  (iv)(b)  (v)(d)


Important Questions for NCERT Class 10 Science Life Processes

Very Short Answer :

Question. What are alkaloids?
Answer: A group of toxic waste products

Question. Define transitional heart.
Answer: The heart which has two atria and one ventricle (sometimes incompletely divided) is called transitional heart.

Question. What is the relation between heart and lungs?
Answer: Heart sends impure blood to lungs, and lungs sends back oxygenated pure blood to heart.

Question. Define double heart.
Answer: The heart with four chambers, two atria and two ventricles, is called double heart.

Question. Which chamber of the heart receives impure blood from the body?
Answer: Right atrium

Question. What is micrograph? 
Answer: Micrograph is a photograph taken using a microscope.

Question. Why does bread taste sweet on mastication?
Answer: Salivary amylase act on starch of food and change it into a sweet sugar called maltose.

Question. Which pancreatic enzyme is effective in digesting proteins?
Answer: Trypsin is the pancreatic enzyme which is effective in digesting proteins.

Question. What is the name given to the biological catalyst which speed up the chemical reactions taking place in cells.
Answer: Enzymes.

Question. Where does digestion of fat take place in our body?
Answer: Digestion of fat takes place in the small intestine of our body.

Question. What is emulsification? 
Answer: Breakdown of large gloubule fats into smaller fats droplets is known as emulsification.

Question. What do you mean by transpiration? 
Answer: The evaporation of the water from the leaves of a plant is called transpiration.
 
Question. What are the various organs of the circulatory system? 
Answer: The various organs of the circulatory system in humans are: heart, arteries, veins and capillaries.
 
Question. What is the job of the heart? 
Answer: The job of heart is to pump blood around our body.
 
Question. Define oxygenated and deoxygenated blood?
Answer: The blood carrying oxygen in it is called oxygenated blood and the blood having no oxygen in it is called deoxygenated blood.
 
 
Click below to download practice worksheet for CBSE Class 10 Biology Life Processes Worksheet Set C
 
Chapter 06 Life Processes
CBSE Class 10 Biology Excretion Set A
CBSE Class 10 Biology Excretion Set B
CBSE Class 10 Biology Excretion Set C
CBSE Class 10 Biology Heterotrophic Nutrition Worksheet Set A
CBSE Class 10 Biology Heterotrophic Nutrition Worksheet Set B
CBSE Class 10 Biology Life Processes Nutrition In Animals Worksheet
CBSE Class 10 Biology Life Processes Nutrition In Plants Worksheet
CBSE Class 10 Biology Life Processes Nutrition Worksheet Set A
CBSE Class 10 Biology Life Processes Nutrition Worksheet Set B
CBSE Class 10 Biology Life Processes Nutrition Worksheet Set C
CBSE Class 10 Biology Life Processes Nutrition Worksheet Set D
CBSE Class 10 Biology Life Processes Reference Materials Worksheet
CBSE Class 10 Biology Life Processes Respiration In Animals Worksheet
CBSE Class 10 Biology Life Processes Respiration Worksheet Set A
CBSE Class 10 Biology Life Processes Respiration Worksheet Set B
CBSE Class 10 Biology Life Processes Respiration Worksheet Set C
CBSE Class 10 Biology Life Processes Respiration Worksheet Set D
CBSE Class 10 Biology Life Processes Transporation Worksheet Set A
CBSE Class 10 Biology Life Processes Transporation Worksheet Set B
CBSE Class 10 Biology Life Processes Transporation Worksheet Set C
CBSE Class 10 Biology Life Processes Transporation Worksheet Set D
CBSE Class 10 Biology Life Processes Worksheet
CBSE Class 10 Biology Life Processes Worksheet Set A
CBSE Class 10 Biology Life Processes Worksheet Set B
CBSE Class 10 Biology Life Processes Worksheet Set C
CBSE Class 10 Biology Life Processes Worksheet Set D
CBSE Class 10 Biology Life Processes Worksheet Set E
Chapter 09 Heredity and Evolution
CBSE Class 10 Biology Heredity And Evolution Set D
Chapter 13 Magnetic Effects of Electric Current
CBSE Class 10 Physics Magnetic Effects of Electric Current Worksheet Set E

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