I want assertion and resoning questions for class 9 biology chapter- tissues
Answers
Explanation:
CLASS 9
BIOLOGY REVISION WORKSHEET
Science for CLASS IX: General Instructions:
i) The question paper comprises of four sections, A, B, C & D. You are to attempt all the
sections.
ii) All questions are compulsory.
iii) Internal choice is given in Section B, C & D.
iv) Question numbers 1 to 4 in Section A are Objective type questions including Multiple
Choice Questions, Assertion- Reason questions, Fill in the blanks and Very short
questions. These are to be answered in one word or one sentence.
v) Qusetions 5 to 11 in Section B are 3 marks questions. These are to be answered in in
about 50 words.
vi) Qusetions 12 to 17 in Section C are 5 marks questions. These are to be answered in in
about 70 words.
vii) Questions 18-23 in Section D are based on practical skills. Questions 18 to 20 are 1
mark each. Questions 21 to 23 are 3 marks each.
Q1.
A) Name the following:
a) Long and unbranched extension of a neuron.
b) Thin, hair - like projections present at the free ends of cuboidal epithelium.
c) Waterproof layer present on the outer wall of epidermal cells.
d) The process of taking up a permanent shape, size and function.
e) Tissue that stores fat in our body.
f) Tissue present at the lining oesophagus.
g) A kharif crop
h) Two examples of weed.
B) ASSERTION-REASON QUESTIONS:
The following questions consist of two statements-Assertion(A) and Reason(R).Answer the
questions selecting the appropriate option below:
a) Both A and R are true and R is the correct explanation for A
b) Both A and R are true and R is not the correct explanation for A
c) A is true but R is false
d) A is false but R is true
1) ASSERTION: The inner mitochondrial membrane is highly folded
REASON: To increase the surface area for ATP synthesis.
2) ASSERTION: Nervous tissue is made of neurons that receive and conduct impulses.
REASON: All cells possess the ability to respond to stimuli.
3) ASSERTION: Simple epithelium has only a single layer of cells.
REASON: Stratified epithelium takes care of wear and tear in skin and oesophagus.
4) ASSERTION: Blood is a fluid connective tissue
REASON: The plasma in the blood is mostly water
5) ASSERTION: Preventive and control measures have to be taken care of for the storage of grains.
REASON: Several biotic and abiotic factors affect the grains when they are store
C) Fill up the blanks:
1) Bee keeping is done to produce _________ and _________
2) New cells formed by the meristematic cells undergo ______________
3) The husk of coconut is made of ______________ cells.
4) _____________ and ___________ form the supportive connective tissue.
5) To enhance poultry production, cross breeding is done between ___________ and _________
breeds for variety improvement.
Q2 Define:
(a) Mariculture (b) White Revolution (d) Composite fish Culture (e) Crop Rotation
Q3 Differentiate between
a) parenchyma, collenchyma and schlerenchyma on the basis of their cell walls.
b) Aerenchyma and chlorenchyma
Q4. Name two Indian breeds of cow, Mention two types of food requirements for milch animals.
Q5 What is hybridisation? What are its types?
Q6 What do you mean by green manuring. Write one difference and one similarity between green
manures and vermicomposting.
Q7 How do storage grain losses occur? State three control measures taken for storage of agricultural
produce.
Q8 (a) Name the different components of xylem
(b) Draw diagram for a conducting component of xylem
(c) State the functions of the various components.
Q9 Diagrammatically differentiate between smooth and skeletal muscles.
Q10. (a) Name the tissue that smoothens bone surface at joints.
(b) Describe its structure with the help of a diagram
(c) Differentiate between bone and cartilage.
Q11. (a)List the characteristics of cork.
(b)How are they formed ?
(c) Mention their role.
Q12 State what will happen when
(a) Dry apricots are left for sometime in pure water and later transferred to sugar solution.
(b) A Red Blood Cell is kept in concentrated saline solution
The plasma membrane of a cell breaks down.
(d) Golgi apparatus is removed from the cell.
Q13. Draw a plant cell and label the parts which
(a) determines the function and development of the cell.
(b) packages materials coming from the endoplasmjc reticulum
(c) provides resistance to microbes to withstand hypotonic external media without bursting.
(e) is a fluid matrix inside the nucleus.
Q18.
(a) Differentiate between mixed cropping and inter cropping. Give one example of each.
(b) How is crop rotation different from the above two?
(c) Mention two advantages of intercropping.
Q19
(a) Name a local variety and an exotic variety of bee used for honey production.
(b) State the desirable traits of honey bees.
(c) State two factors on which quality of honey depend