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

Class 10 - Biology Quiz 

Based on CBSE Class 10 Syllabus

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 ____.

Class 10 - Science - Chapter 15: Our Environment (Study Points) (#cbsenotes)(#eduvictors)

Our Environment 

(Study Points)

Environment: 

It is the sum total of all external conditions and influences that affect the life and development of an organism, i.e., the environment includes all the physical or abiotic and biological or biotic factors.

Biodegradable Substances: 

These are those substances which are broken down into simpler, harmless substances in nature with due course of time by the biological processes such as action of microorganisms like certain bacteria.

Eg. Domestic waste products, urine and faecal matter, sewage, agricultural residue, paper, wood,

cloth and cattle dung.

Non-biodegradable Substances:

Non-biodegradable Substances are those substances which cannot be broken down into simpler, harmless substances in nature. These substances may be in solid, liquid or gaseous form and may be inert and accumulate in the environment or may be concentrated in the food chain and harm the organisms.

Eg. DDT, plastics, polythene bags, insecticides, pesticides, mercury, lead, arsenic, aluminium, radioactive wastes, etc.

CBSE Class 10 - All Subjects Sample Question Papers (2018-19) (#cbsepapers)(#eduvictors)

CBSE Class 10 -
 Sample Question Papers (2018-19)

All Subjects

The Central Board of Secondary Education (CBSE) conducts Class 10 Board examinations every year in March. All examination questions depend on this prospectus so students should know about any updates that are made by NCERT. For the examinations, students can likewise download the CBSE board test papers for class 10 free PDF download and work on taking care of issues with us.

By solving the CBSE test papers for class 10, candidates will figure out how to distinguish question paper examples and patterns, answer necessities, kinds of trap questions and the sky is the limit from there. Students are urged to endeavor test question papers inside the predefined time limit. The papers empower them  to find the correct technique and answers for ordinarily made questions. They are urged to solve the problems within the recommended time with the goal that they may assess their regions of solidarity and focus on those they are feeble in.

To endeavor board exam understudies require a great deal of training as ridicule tests and test papers that will plan and empower them to compose the Class 10 CBSE Board Examination with certainty. Since it is the main board exam a kid shows up for there is frequently a great deal of fear included. Explaining these example papers supports certainty and mitigates the dread of board examinations that a great deal of students have.

Here are sample question papers on various subjects for class 10 (session: 2018-19) along with answers and marking schemes:

Class 9 - 12 - Biology - Know About Disease - Brief Notes About AIDS (#cbsenotes)(#eduvictors)

AIDS(A Brief Introduction)

Meaning of AIDS

✤ The word AIDS stands for Acquired Immuno Deficiency Syndrome. This means a deficiency of the immune system, acquired during the lifetime of an individual indicating that it is not a congenital disease [disease or abnormality present from birth]. ‘Syndrome’ means a group of symptoms.


✤ AIDS was first reported in 1981 and in the last twenty-five years or so, it has spread all over the world.

✤ Luc Montagnier, Françoise Barré-Sinoussi, and their colleagues at the Pasteur Institute in Paris were the first to report the discovery of the virus now called the human immunodeficiency virus (HIV) associated with AIDS.


Causes of AIDS

CBSE Class 10 - Biology - Reproduction in Plants - Very Short Questions Answers (#cbsenotes)(#eduvictors)

Reproduction in Plants 

Class 10 Biology

Stamen, Anthers: Credits: Sandeep Handa

Very Short Questions Answers

Q1: Write two ways in which pollination may occur in plants.

Answer: The two ways in which pollination may occur in plants are:
⑴ Self-pollination.
⑵ Cross-pollination.


Q2: Name the three agents of pollination.

Answer: The three agents of pollination are:
⑴ Insect
⑵ Wind
⑶ Water


Q3: Name any three agencies for dispersal of seeds.

Answer:
⑴ Wind
⑵ Water
⑶ Man and animals, birds, bats, squirrels.

CBSE Class 10 - Biology - Our Environment - Revision Assignment (#cbsenotes)(#eduvictors)

Biology - Our Environment 

Revision Assignment

ONE MARK QUESTIONS

1. Using Kulhads as disposable cups to serve tea in trains, proved to be a bad idea. Why?

2. Why is plastic not degraded by bacteria?


TWO MARK QUESTIONS

3. DDT has entered the food chain. Which food habit is safer- vegetarian or non-vegetarian?

4. Classify the flowing as decomposers and producers Green plants, bacteria, fungi, algae, blue-green algae.

5. Distinguish between producers and consumers.

6. Name two environment-friendly practices.

7. Write any two ways of energy flow through an ecosystem.

CBSE CLASS 10 - Biology - Control and Co-ordination (Important Questions) (#cbsenotes)(#eduvictors)

Control and Co-ordination

(Important Questions to Revise)

ONE MARK QUESTIONS

1. Which endocrine gland is unpaired?

2. Which part of the brain controlled posture and balance of the body?

3. Where in a neuron, conversions of electrical signal to a chemical signal occur?

4. Which gland secretes digestive enzyme as well as hormones?

5. We suddenly withdraw our hand when a pin pricks. Name the type of response involved in this action.

6. Name the hormone which helps in regulating sugar level in our blood? Name the gland which secretes this hormone?

7. State the main function of abscises acid

CBSE CLASS-X - SCIENCE ASSIGNMENT-MANAGEMENT OF NATURAL RESOURCES (#cbsenotes)(#eduvictors)

MANAGEMENT OF NATURAL RESOURCES

ASSIGNMENT

1) When was Ganga action plan project (gap) started and why was it started?

2) Name the type of bacteria whose presence in water causes intestinal disorders?

3) How does Ganga water pollute? List at least four human activities.

4) How do industries pollute the Ganga water?

5) What leads to the killing of fish in the large section of Ganga water?

6) What is the PH of water?

CBSE CLASS 12 - Biology - Digestion - Five Digestive Juices (#cbsenotes)(#eduvictors)

Digestion - FIVE DIGESTIVE JUICES

Image credits: LadyOfHats (Wikimedia)

There are five digestive juices i.e.

① Saliva,

② Gastric juice

③ Pancreatic juice

④ Intestinal juice (succus entericus)

⑤ Bile juice

CLASS 10 - Biology - Heredity and Evolution – Unit Test Paper (#cbsePapers)(#eduvictors)

Heredity and Evolution

Unit Test Paper

Q1: Define the following:
a) Inheritance
b) Heredity
c) Phenotype
d) Genotype

Q2: How does the creation of variation in a species promote survival?


Q3: Give scientific reasons:

i. In sexual mode of reproduction greater diversities are generated.

ii. Phenotypic and genotypic ratios are different.

iii. A cross between a tall plant (TT) and short pea plant (tt) resulted in progeny that were all tall plants


Q4: How do genes regulate the height of a plant ?

CBSE Class 10 - Biology - Study Notes about Plant Growth Hormones (Phytohormones) (#cbseNotes)

Plant Hormones (Phytohormones)

Plant hormones or phytohormones are small, simple chemical molecules, which are present in low concentration in plants and regulate growth, differentiation and development.


Two Categories of Phytohormones:

① Plant growth promoters: Examples are auxins, gibberellins and cytokinins.
② Plant growth inhibitors: Examples are abscisic acid, ethylene.


All about Auxins
⒈ Auxins are weakly acidic growth hormones.

⒉ Darwin (1880) was first to find about Auxins in the tip of canary grass.

⒊ These hormones are found in shoot apex, leaf Primordia and developing seeds.

CBSE Class 10 - Biology - Heredity and Evolution - Origin Of Life On Earth (Concept Points) (#cbseNotes)

Origin Of Life On Earth (Concept Points)

① Most scientists believed that life arose from nonliving matter, mostly from gases. It originated in primitive form in the oceans of the earth.

② 4 billion years ago, the primitive atmosphere was formed. It had little oxygen and was likely thick with water vapor, along with compounds released by volcanic eruptions, such as nitrogen oxides, carbon dioxide, methane, ammonia, and hydrogen.

CBSE Class 10 - Biology - - Arteries vs Veins (#cbseNotes)

Biology - Arteries vs Veins

Areteries vs Veins
credits: Kelvinsong (Wikimedia) under CC-BY-SA-3.0

Arteries and Veins are parts of closed circulatory system and both carry blood. Here follows the differences between the two:

CBSE Class 10 - Biology - Life Processes (TRANSPORTATION and EXCRETION) - Assignment Sheet (#cbseNotes)

TRANSPORTATION & EXCRETION (Biology - Life Processes) - Assignment Sheet

1. Name any 5 substances transported by human blood.


2. Describe briefly the composition of blood.


3. Write the functions of the following :
a) Red Blood Cells
b) White Blood Cells
c) Blood Platelets
d) Plasma
e) Lymph
f) Bicuspid and Tricuspid valves
g) Pericardial Fluid

CBSE Class 10 - Biology - Asexual reproduction vs Sexual reproduction (#cbseNotes)

Asexual reproduction vs Sexual reproduction

No.	Asexual reproduction	Sexual reproduction
1.	Only One parent is involved.	Both male and female parents are involved.
2.	Occurs in unisexual plants.	Occurs in bisexual plants.
3.	Occurs in lower plants.	Occurs in higher plants and animals.
4.	Reproductive organs are not present	Fully developed reproductive parts are present.

CBSE Class 10 - BIOLOGY ASSIGNMENT - CONTROL AND COORDINATION (#cbseNotes)

CONTROL AND COORDINATION (BIOLOGY ASSIGNMENT)

1. What are gustatory and olfactory receptors?

2. Draw a diagram of neuron and neuro muscular function.

3. What is synapse?

4. What is reflex arc?

5. Draw a diagram to show reflex arc

6. What does CNS comprise of? Write its function.

7. What is peripheral nervous system? Write its functions.

8. Name the three parts and regions of brain.

9. Why forebrain is main thinking part of brain?

10. How sensation of feeling full stomach is felt?

CBSE Class 10 - Science - Life Processes - Pathway of Air (#cbseNotes)

 Life Processes - Pathway of Air
(Breathing Process)

CBSE Class 10 - Science - Biology

Breathing process involves a the pathway of air from nostril to alveolus. It is a physical process. The pathway is described as follows:

Nostrils:         ⇅	Air usually enters the body through the nostrils.
Nasal cavity: ⇅	Air is filtered. The moist surface of the lining of the nasal cavity, and the hairs growing from its sides, remove some of the tiny particles of dirt in the air. In addition, as the inhaled air passes through the nasal cavity, its temperature is brought close to that of the body, and it takes up water vapour so that it becomes more moist than before.

CBSE Class 10 - Biology - Life Processes - 51 Questions You must Revise (#cbseNotes)

LIFE PROCESSES
51 Questions You must Revise

(Revision Questions based on NCERT Chapter)

Q1: Define nutrition.

Q2: Is the presence of only one life process sufficient to decide whether an object is living or non-living?

Q3: Explain the types of heterotrophic nutrition on the basis of food habit.

Q4: What is the role of iodine solution in activity 6.1?

Q5: Give scientific reason. Unwanted and harmful waste products need to be eliminated from the body.

Q6: What is the role of KOH in activity 6.2?

Q7: What is the function of pancreas in human digestive system?

CBSE Class 10 - Biology - Life Processes (Holiday Assignment) Q & A (#cbsenotes)

Life Processes 

(Assignment Q & A) 

Structure Of Leaf
credits: Zephrys, undr CCAS 3.0, Wikimedia Commons

Q1. Where are chloroplasts present in the leaf?

Answer: Below the epidermis, there are layers of palisade cells that contain chloroplasts.


Q2.  Name the pigments that can absorb solar energy. Also name the enzyme required for photosynthesis.

Answer: Chlorophyll. RuBisCo (Ribulose-1,5-bisphosphate carboxylase/oxygenase), a protein enzyme is required to initiate photosynthesis.

(Note: RuBisCo is the most abundant protein in the world due to its presence in green plants.)


Q3. Name one organism each having saprophytic and parasitic and holozoic nutrition.

Answer:
Saprophytic: Mushroom, yeast
Parasitic: Cuscutta (Dodder plant), Ring Worm, Leech
Holozoic: Human, amoeba


Q4. Enlist two functions of bile juice of liver.

Answer:
1. Bile neutralized the acidic medium of food coming from stomach and  makes it alkaline.
2. It breaks the large fat globules into smaller ones, this increases the enzyme action.

CBSE Class 10 - Biology - Digestive Organs and Their Functions (#cbsenotes)

Digestive Organs and Their Functions