Showing posts with label class10-biology. Show all posts

Sunday, 8 May 2022

Class 10 Biology - Reproduction - Important Differences (You Should Know) #class10Science #eduvictors

Biology - Reproduction - Important Differences

Here is a list of important differences related to the Asexual mode and the Sexual Mode of reproduction, commonly asked in examinations.

Binary Fission vs Multiple Fission

Class 10 Biology - Heredity (Worksheet) #heredity #class10Biology #eduvictors #worksheets

Class 10 Biology - Heredity (Worksheet)

Fill in the blanks with suitable word(s).

1. The generation resulting immediately from a cross of the first set of parents is called ____________.

2. All cells forming the body of an organism, except the reproductive cells are called _________ cells.

3. A type of crossing in which only one pair of contrasting characters is considered is called _________ cross.

CBSE Class 10 - Biology - Life Processes MCQs (#class10Biology)(#Class10Term1MCQs)(#class10Science)(#eduvictors)

CBSE Class 10 - Biology - Life Processes MCQs

Q1: Which activity is basic to living beings?

(a) Reproduction

(b) Locomotion

(d) Adaptation

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

Class 10 Biology: Life Processes (Worksheet)

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____.

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)

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?

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

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

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.

(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.

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)

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 ?

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

Biology - Scientific Names

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.

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)

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.

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

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 ---------.

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

Science - MCQs

CBSE Class 10

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.