Showing posts with label class10-biology. Show all posts
Showing posts with label class10-biology. Show all posts

Friday, 11 June 2021

Class 10 Biology: Life Processes (Worksheet) (#class10Biology)(#cbse2021)(#eduvictors)

Class 10 Biology: Life Processes (Worksheet)

Class 10 Biology: Life Processes (Worksheet) (#class10Biology)(#cbse2021)(#eduvictors)


Fill in the blanks with suitable words.


1. ____ regulate the exchange of gases and the loss of water vapour from the leaves.


2. Who won the Nobel Prize for his work on photosynthesis?


3. ____are stacks of thylakoid membrane.


4. Photosynthesis occurs in which organelle of the cell?


5. Iodine can be used to test the presence of____.

Thursday, 29 April 2021

CBSE Class 10 Biology - Questions and Answers Related to Activity To Show Chlorophyll is Necessary For Photosynthesis (#class10Biology)(#class10Science)(#eduvictors)

CBSE Class 10 Biology - Questions and Answers Related to Activity To Show Chlorophyll is Necessary For Photosynthesis

Chapter: Life Processes (NCERT Book Activity 6.1)

CBSE Class 10 Biology - Questions and Answers Related to Activity To Show Chlorophyll is Necessary For Photosynthesis (#class10Biology)(#class10Science)(#eduvictors)


Activity Steps

Step 1: Take a potted plant with variegated leaves – for example, a money plant or croton.

Step 2: Keep the plant in a dark room for three days so that all the starch gets used up.

Step 3: Now keep the plant in sunlight for about six hours.

Step 4: Pluck a leaf from the plant. Mark the green areas in it and trace them on a sheet of paper.

Step 5:  Dip the leaf in boiling water for a few minutes.

Step 6:  After this, immerse it in a beaker containing alcohol.

Step 7: Carefully place the above beaker in a water bath and heat till the alcohol begins to boil.

What happens to the colour of the leaf? What is the colour of the solution?

Step 8: Now dip the leaf in a dilute solution of iodine for a few minutes.

Take out the leaf and rinse off the iodine solution.

Observe the colour of the leaf and compare this with the tracing of the leaf done in the beginning.

What can you conclude about the presence of starch in various areas of the leaf?

Friday, 8 January 2021

CBSE Class 10 Biology - Control and Coordination - Assertion Reasoning Questions (#class10Biology)(#eduvictors)(#cbse2021)

 CBSE Class 10 Biology - Control and Coordination - Assertion Reasoning Questions

CBSE Class 10 Biology - Control and Coordination - Assertion Reasoning Questions (#class10Biology)(#eduvictors)(#cbse2021)


In each of the following questions, a statement of Assertion is given by the corresponding statement of Reason. Of the statements, mark the correct answer as.

(a) If assertion is true and reason is correct explanation of assertion.

(b) If assertion is true but reason is false.

(c) If assertion is false but reason is true.

(d) If both are false.


Q1: 

Assertion: We detect the smell of agarbati (incense stick)

Reason: Smell is detected by phono receptors of nose, which further relay impulses to the brain.

Friday, 25 December 2020

Class 10 Science - Question Bank - Very Short Answers Based Questions (Unsolved)(#class10Science)(#cbse2020)(#eduvictors)

Class 10 - SCIENCE - Question Bank - Very Short Answers Based Questions (Unsolved)

Class 10 Science - Question Bank - Very Short Answers Based Questions (Unsolved)(#class10Science)(#cbse2020)(#eduvictors)


1. Why does not a wall immediately acquire a white colour when a coating of slaked lime is applied on it ?


2. Define displacement reaction with one example.


3. Identify the most reactive and least reactive metal : Al, K, Ca, Au.


4. Which of the following is a combination reaction and which is a displacement reaction ?

(a) Cl₂ + 2KI ——–> 2KCl + I₂

(b) 2K + Cl₂ ——–> 2KCl.


5. What is the difference between the following two reactions ?

(a) Mg + 2HCl ——–> MgCl2 + H2

(b) NaOH + HCl ——–> NaCl + H2O.


6. Identify the compound which is oxidised in the following reaction

H₂S + Br₂ ———–> 2HBr + S.


7. What happens chemically when quick lime is added to water ?

Saturday, 3 October 2020

Biology - Scientific Names (#Class11Biology)(#NEET)(#Class12Biology)(#Class9Biology)

 Biology - Scientific Names 

Biology - Scientific Names (#Class11Biology)(#NEET)(#Class12Biology)(#Class9Biology)


1. Swedish botanist Carolus Linnaeus established binomial nomenclature. 

2. Caper Bauhin expressed proposed binomial nomenclature for the first time 

3. In binomial nomenclature, the first word is a generic name having first letter capital and second word is a  specific epithet having first letter. e.g.  Homo sapiens, Mangifera indica

4. After end of biological name, the name of author is written in abbreviated form who gave the name to that organism.

5. Both the words of a biological name when handwritten are separately underlined and when printed are typed in italics to indicate their Latin origin and also give respect to the name.

Friday, 17 July 2020

Class 10 - Biology - Chapter - How do Organisms Reproduce - Asexual Reproduction (Worksheet - 2)(#class10Biology)(#eduvictors)

Class 10 - Biology - Chapter - How do Organisms Reproduce - Asexual Reproduction (Worksheet - 2)

Class 10 - Biology - Chapter - How do Organisms Reproduce - Asexual Reproduction (Worksheet - 2)(#class10Biology)(#eduvictors)

Fill in the blanks with suitable words:


1. The production of new offspring from a single parent with the involvement of gametes is called ________ reproduction.


2. Reproduction in amoeba takes place asexually called _______   _________.


3. Hydra reproduces asexually, the process is called ________.


4. Leishmania, a unicellular protozoan reproduces very similar to amoeba. But the difference is that the parent cell of Leishmania splits in a _______ plane. 


Tuesday, 19 May 2020

CBSE Class 10 - Biology - Control and Coordination (Worksheet - Fill in the Blanks)(#eduvictors)(#cbse)(#Class10Biology)

Control and Coordination (Worksheet - Fill in the Blanks)

CBSE Class 10 - Biology 
CBSE Class 10 - Biology - Control and Coordination (Worksheet - Fill in the Blanks)(#eduvictors)(#cbse)(#Class10Biology)

Fill in the blanks:

1. Control and coordination are the functions of the nervous system and --------------- in our body.

2. The nervous system uses ---------------impulses to transmit messages.

3. Central nervous system consists of -------------and--------------.

4. Largest part of the brain is---------------.

5. The growth of pollen tubes towards the ovules is the result of a ------------- movement.

6. The chemical substances which bring about control and coordination in plants ---------.

Tuesday, 28 January 2020

CBSE Class 10 - Science - MCQs (#cbseClass10Science)(#eduvictors)

Science - MCQs 

CBSE Class 10 

CBSE Class 10 -  Science - MCQs (#cbseClass10Science)(#eduvictors)


Q1: Optical density of a medium depends on

      (a) Density of the medium
      (b) Thickness of the medium
      (c) Velocity of light in that medium
      (d) None of these

Q2: Which of the following is not a physical change?

      (a) Boiling of water to give water vapour
      (b) Melting of ice to give water
      (c) Dissolution of salt in water
      (d) Combustion of Liquefied Petroleum Gas (LPG)


Q3: Which of the following is correct about chromosomes?

      (a) It is composed of DNA and lipids.
      (b) It is composed of DNA and proteins.
      (c) It is composed of DNA only.
      (d) It is composed of RNA and proteins.


Tuesday, 2 July 2019

CBSE Class 10 - Biology - Control and CoOrdination (MCQs-2)(#cbsenotes)(#eduvictors)

Control and Coordination 

(MCQs-2)
Class 10 Biology
CBSE Class 10 - Biology - Control and CoOrdination (MCQs-2)(#cbsenotes)(#eduvictors)
credits:wikipedia



Q1: _________ is necessary to obtain energy from glucose and fatty acid. 
(a) Oxygen 
(b) Hydrogen 
(c) Water 
(d) Nitrogen 



Q2: The movement of the plant in response to the stimulus of light is called _________ movement. 
(a) geotropic 
(b) hydrotropic 
(c) phototropic 
(d) chemotropic 



Q3: In certain sensitive plants like Mimosa, movement is in response to the stimulus of ________ . 
(a) gravity 
(b) air 
(c) light 
(d) touch 

Tuesday, 14 May 2019

CBSE Class 10 - Biology - Life Processes - Worksheet (#cbsenotes)(#class10Biology)(#cbsenotes)

Class 10 - Biology 

Life Processes - Worksheet

CBSE Class 10 - Biology - Life Processes - Worksheet (#cbsenotes)(#class10Biology)(#cbsenotes)

Fill in the blanks

1. The organisms which synthesize their own organic food are called as ___________ .


2. __________ nutrition involves the intake of complex material prepared by other organisms


3. ____ are required for the synthesis of proteins.


4. ____ regulate the exchange of gases and loss of water vapour in plant.

Friday, 26 April 2019

CBSE Class 10 - Biology - Chapter: Life Processes - Assertion Reasoning Type Questions (#eduvictors)(#cbsenotes)

Class 10 - Biology Chapter: Life Processes Assertion Reasoning Type Questions 

CBSE Class 10 - Biology - Chapter: Life Processes - Assertion Reasoning Type Questions (#eduvictors)(#cbsenotes)

From session 2019-20 onwards, CBSE introduces a new pattern of questions which are assertion and reasoning based. 

The questions below consist of statements of an Assertion and a Reason. Use the following key to choose the appropriate answer:

(A) If both assertion and reason are CORRECT and the reason is the CORRECT explanation of the assertion.

(B) If both assertion and reason are CORRECT, but the reason is NOT THE CORRECT explanation of the assertion.

(C) If the assertion is CORRECT, but the reason is INCORRECT

(D) If the assertion is INCORRECT, but the reason is CORRECT

(E) If both assertion and reason are INCORRECT

QUESTIONS:

1. ASSERTION: Molecular movements are needed for life.
REASON: Body structures made up of these molecules need continuous repair and maintenance.

Tuesday, 16 April 2019

Class 10 - Biology - Life Processes - Nutrition in Human Beings - Very Short Answer based Questions (#class10Biology)(#cbsenotes)(#eduvictors)

Class 10 - Biology - Life Processes -  Nutrition in Human Beings 

Very Short Answer based Questions

Human Alimentary Canal
Image Credits: clker.com

Q1: What is common name of buccal cavity?

Answer: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _


Q2: Name the enzyme present in saliva?

Answer: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _


Q3: Which organ releases gastric juice?

Answer: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _


Q4: Name the digestive juice(s) received by small intestine.

Answer: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _


Q5: Name the largest digestive gland.

Answer: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _


Saturday, 9 March 2019

CBSE Class 10 - Science - Biology - 1 Mark Questions Asked in CBSE Examination Papers (Set-1)(#cbsenotes)(#eduvictors)

Class 10 - Science - Biology - 1 Mark Questions Asked in CBSE Examination Papers (Set-1)

CBSE Class 10 - Science - Biology - 1 Mark Questions Asked in CBSE Examination Papers (Set-1)(#cbsenotes)(#eduvictors)

Q1: Which tissue transports soluble products of photosynthesis?

Answer: Phloem.


Q2: What is emulsification?

Answer: Breakdown of fat globules in small intestine into tiny droplets, by bile juice so that lipase enzyme can digest.


Q3:  Mention the site of complete digestion of carbohydrates, proteins and fats in humans.

Answer: Small intestine


Q4: Name a common nutrient that is absorbed in the small intestine and reabsorbed by the kidney tubules.

Answer: Glucose/Amino acids


Wednesday, 6 February 2019

CBSE Class 10 - Biology Quiz - Based on CBSE Class 10 Syllabus (#cbsenotes)(#eduvictors)(#biologyquiz)

Class 10 - Biology Quiz 

Based on CBSE Class 10 Syllabus

CBSE Class 10 - Biology Quiz - Based on CBSE Class 10 Syllabus (#cbsenotes)(#eduvictors)(#biologyquiz)


Quizzes and Worksheets help you learn important keywords and definitions. The following worksheet helps you quickly assess your biology knowledge.
 
Fill in the blanks:

1. ____ regulate the exchange of gases and the loss of water vapour from the leaves.

2. Iodine can be used to test the presence of____.

3. Respiration in the absence of oxygen by micro organisms is called _____.

4. In ATP, energy is stored in organic_____.

5. Respiration in Amoeba occurs by____.

6. __________ are the units of lungs.

7. ________ in human blood is the most efficient carrier of oxygen.

8. Doctors measure blood pressure with the instrument called ________.

9. The matrix of blood is ____.

10. Endocrine glands discharge their secretions into ____.