Sunday, October 30, 2022

NCERT EXAMPLER,Chapter- 6 TISSUES,CLASS 9th

 1. Which of the following tissues has dead cells?

(a) Parenchyma

(b) Sclerenchyma

(c) Collenchyma

(d) Epithelial tissue

2. Find out incorrect sentence

(a) Parenchymatous tissues have intercellular spaces

(b) Collenchymatous tissues are irregularly thickened at corners

(c) Apical and intercalary meristems are p5ermanent tissues

(d) Meristematic tissues, in its early stage, lack vacuoles

3. Girth of stem increases due to

(a) apical meristem

(b) lateral meristem

(c) intercalary meristem

(d) vertical meristem

4. Which cell does not have perforated cell wall?

(a) Tracheids

(b) Companion cells

(c) Sieve tubes

(d) Vessels

5. Intestine absorb the digested food materials. What type of epithelial cells

are responsible for that?

(a) Stratified squamous epithelium

(b) Columnar epithelium

(c) Spindle fibres

(d) Cuboidal epithelium

6. A person met with an accident in which two long bones of hand were

dislocated. Which among the following may be the possible reason?

(a) Tendon break

(b) Break of skeletal muscle

(c) Ligament break

(d) Areolar tissue break

7. While doing work and running, you move your organs like hands, legs etc.

Which among the following is correct?

(a) Smooth muscles contract and pull the ligament to move the bones

(b) Smooth muscles contract and pull the tendons to move the bones

(c) Skeletal muscles contract and pull the ligament to move the bones

(d) Skeletal muscles contract and pull the tendon to move the bones

8. Which muscles act involuntarily?

(i) Striated muscles

(ii) Smooth muscles

(iii) Cardiac muscles

(iv) Skeletal muslces

(a) (i) and (ii)

(b) (ii) and (iii)

(c) (iii) and (iv)

(d) (i) and (iv)

9. Meristematic tissues in plants are

(a) localised and permanent

(b) not limited to certain regions

(c) localised and dividing cells

(d) growing in volume

10. Which is not a function of epidermis?

(a) Protection from adverse condition

(b) Gaseous exchange

(c) Conduction of water

(d) Transpiration

11. Select the incorrect sentence

(a) Blood has matrix containing proteins, salts and hormones

(b) Two bones are connected with ligament

(c) Tendons are non-fibrous tissue and fragile

(d) Cartilage is a form of connective tissue

12. Cartilage is not found in

(a) nose

(b) ear

(c) kidney

(d) larynx

13. Fats are stored in human body as

(a) cuboidal epithelium

(b) adipose tissue

(c) bones

(d) cartilage

14. Bone matrix is rich in

(a) fluoride and calcium

(b) calcium and phosphorus

(c) calcium and potassium

(d) phosphorus and potassium

15. Contractile proteins are found in

(a) bones

(b) blood

(c) muscles

(d) cartilage

16. Voluntary muscles are found in

(a) alimentary canal

(b) limbs

(c) iris of the eye

(d) bronchi of lungs

17. Nervous tissue is not found in

(a) brain

(b) spinal cord

(c) tendons

(d) nerves

18. Nerve cell does not contain

(a) axon

(b) nerve endings

(c) tendons

(d) dendrites

19. Which of the following helps in repair of tissue and fills up the space inside

the organ?

(a) Tendon

(b) Adipose tissue

(c) Areolar

(d) Cartilage

20. The muscular tissue which function throughout the life continuously

without fatigue is

(a) skeletal muscle

(b) cardiac muscle

(c) smooth muscle

(d) voluntary muscle

21. Which of the following cells is found in the cartilaginous tissue of the body?

(a) Mast cells

(b) Basophils

(c) Osteocytes

(d) Chondrocytes

22. The dead element present in the phloem is

(a) companion cells

(b) phloem fibres

(c) phloem parenchyma

(d) sieve tubes

23. Which of the following does not lose their nucleus at maturity?

(a) Companion cells

(b) Red blood cells

(c) Vessel

(d) Sieve tube cells

24. In desert plants, rate of water loss gets reduced due to the presence of

(a) cuticle

(b) stomata

(c) lignin

(d) suberin

25. A long tree has several branches. The tissue that helps in the side ways

conduction of water in the branches is

(a) collenchyma

(b) xylem parenchyma

(c) parenchyma

(d) xylem vessels

26. If the tip of sugarcane plant is removed from the field, even then it keeps on

growing in length. It is due to the presence of

(a) cambium

(b) apical meristem

(c) lateral meristem

(d) intercalary meristem

27. A nail is inserted in the trunk of a tree at a height of 1 metre from the

ground level. After 3 years the nail will

(a) move downwards

(b) move upwards

(c) remain at the same position

(d) move sideways

28. Parenchyma cells are

(a) relatively unspecified and thin walled

(b) thick walled and specialised

(c) lignified

(c) none of these

29. Flexibility in plants is due to

(a) collenchyma

(b) sclerenchyma

(c) parenchyma

(d) chlorenchyma

30. Cork cells are made impervious to water and gases by the presence of

(a) cellulose

(b) lipids

(c) suberin

(d) lignin

31. Survival of plants in terrestrial environment has been made possible by

the presence of

(a) intercalary meristem

(b) conducting tissue

(c) apical meristem

(d) parenchymatous tissue

32. Choose the wrong statement

(a) The nature of matrix differs according to the function of the tissue

(b) Fats are stored below the skin and in between the internal organs

(c) Epithelial tissues have intercellular spaces between them

(d) Cells of striated muscles are multinucleate and unbranched

33. The water conducting tissue generally present in gymnosperm is

(a) vessels

(b) sieve tube

(c) tracheids

(d) xylem fibres





NCERT EXAMPLER CLASS-9th, Chapter- 5(The Fundamental UNIT OF LIFE)

 

        Multiple choice questions


1. Which of the following can be made into crystal?

(a) A Bacterium

(b) An Amoeba

(c) A Virus

(d) A Sperm

2. A cell will swell up if

(a) The concentration of water molecules in the cell is higher than the

concentration of water molecules in surrounding medium

(b) The concentration of water molecules in surrounding medium is higher

than water molecules concentration in the cell

(c) The concentration of water molecules is same in the cell and in the

surrounding medium

(d) Concentration of water molecules does not matter

3. Chromosomes are made up of

(a) DNA

(b) protein

(c) DNA and protein

(d) RNA

4. Which of these options are not a function of Ribosomes?

(i) It helps in manufacture of protein molecules

(ii) It helps in manufacture of enzymes

(iii) It helps in manufacture of hormones

(iv) It helps in manufacture of starch molecules

(a) (i) and (ii)

(b) (ii) and (iii)

(c) (iii) and (iv)

(d) (iv) and (i)

5. Which of these is not related to endoplasmic reticulum?

(a) It behaves as transport channel for proteins between nucleus and

cytoplasm

(b) It transports materials between various regions in cytoplasm

(c) It can be the site of energy generation

(d) It can be the site for some biochemical activities of the cell

6. Following are a few definitions of osmosis

Read carefully and select the correct definition

(a) Movement of water molecules from a region of higher concentration to

a region of lower concentration through a semipermeable membrane

(b) Movement of solvent molecules from its higher concentration to lower

concentration

(c) Movement of solvent molecules from higher concentration to lower

concentration of solution through a permeable membrane

(d) Movement of solute molecules from lower concentration to higher

concentration of solution through a semipermeable membrane

7. Plasmolysis in a plant cell is defined as

(a) break down (lysis ) of plasma membrane in hypotonic medium

(b) shrinkage of cytoplasm in hypertonic medium

(c) shrinkage of nucleoplasm

(d) none of them

8. Which of the following are covered by a single membrane?

(a) Mitochondria

(b) Vacuole

(c) Lysosome

(d) Plastid

9. Find out the false sentences

(a) Golgi apparatus is involved with the formation of lysosomes

(b) Nucleus, mitochondria and plastid have DNA; hence they are able to

make their own structural proteins

(c) Mitochondria is said to be the power house of the cell as ATP is

generated in them.

(d) Cytoplasm is called as protoplasm

10. Find out the correct sentence

(a) Enzymes ( packed in Lysosomes are made through RER (rough

endoplasmic reticulum)

(b) Rough endoplasmic reticulum and smooth endoplasmic reticulum

produce lipid and protein respectively

(c) Endoplasmic reticulum is related with the destruction of plasma

membrane

(d) Nucleoid is present inside the nucleoplasm of eukaryotic nucleus

11. Which cell organelle plays a crucial role in detoxifying many poisons and drugs in a cell?

(a) Golgi apparatus

(b) Lysosomes

(c) Smooth endoplasmic reticulum

(d) Vacuoles

12. The proteins and lipids, essential for building the cell membrane, are manufactured by

(a) rough endoplasmic reticulum

(b) golgi apparatus

(c) plasma membrane

(d) mitochondria

13. The undefined nuclear region of prokaryotes are also known as

(a) nucleus

(b) nucleolus

(c) nucleic acid

(d) nucleoid

14. The cell organelle involved in forming complex sugars from simple sugars are

(a) endoplasmic reticulum

(b) ribosomes

(c) plastids

(d) golgi apparatus

15. Which out of the following is not a function of vacuole?

(a) Storage

(b) Providing turgidity and rigidity to the cell

(c) Waste excretion

(d) Locomotion

16. Amoeba acquires its food through a process, termed

(a) exocytosis

(b) endocytosis

(c) plasmolysis

(d) exocytosis and endocytosis both

17. Cell wall of which one of these is not made up of cellulose?

(a) Bacteria

(b) Hydrilla

(c) Mango tree

(d) Cactus

18. Silver nitrate solution is used to study

(a) endoplasmic reticulum

(b) golgi apparatus

(c) nucleus

(d) mitochondria

19. Organelle other than nucleus, containing DNA is

(a) endoplasmic reticulum

(b) golgi apparatus

(c) mitochondria

(d) lysosome

20. Kitchen of the cell is

(a) mitochondria

(b) endoplasmic reticulum

(c) chloroplast

(d) golgi apparatus

21. Lipid molecules in the cell are sythesized by

(a) smooth endoplasmic reticulum

(b) rough endoplasmic reticulum

(c) golgi apparatus

(d) plastids

22. Cell arises from pre-existing cell was stated by

(a) Haeckel

(b) Virchow

(c) Hooke

(d) Schleiden

23. Cell theory was given by

(a) Schleiden and Schwann

(b) Virchow

(c) Hooke

(d) Haeckel

24. The only cell organelle seen in prokaryotic cell is

(a) mitochondria

(b) ribosomes

(c) plastids

(d) lysosomes

25. Organelle without a cell membrane is

(a) ribosome

(b) golgi apparatus

(c) chloroplast

(d) nucleus

26. 1 µm is

(a) 10–6 m

(b) 10–9 m

(c) 10–10 m

(d) 10–3 m

27. Lysosome arises from

(a) endoplasmic reticulum

(b) golgi apparatus

(c) nucleus

(d) mitochondria

28. Living cells were discovered by

(a) Robert Hooke

(b) Purkinje

(c) Leeuwenhoek

(d) Robert Brown

29. Select the odd one out

(a) The movement of water across a semi permeable membrane is affected

by the amount of substances dissolved in it.

(b) Membranes are made of organic molecules like proteins and lipids

(c) Molecules soluble in organic solvents can easily pass through the

membrane.

(d) Plasma membranes contain chitin sugar in plants



Class 9th Ncert Exampler Science

Chapter 1 -  MATTER IN OUR SURROUNDINGS Chapter 2 - IS MATTER AROUND US PURE Chapter 3 - ATOMS AND M OLECULES Chapter 4 - STRUCTURE OF THE ...