MCQ The Fundamental Unit of Life | Online Test

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MCQ The Fundamental Unit of Life - Eukaryotic Cell — **Eukaryotic Cell**

Online Test | MCQ The Fundamental Unit of Life | NCERT Class 9 Science Chapter 5 | CBSE Syllabus

Every student of class 9 of NCERT/CBSE syllabus may take part this online test of NCERT Class 9 Science Chapter 5 MCQ The Fundamental Unit of Life and verify his score to check preparedness and verify his score to check preparedness

#1. Plasmolysis in a plant cell is defined as

a) break down of plasma membrane in hypotonic medium

b) shrinkage of cytoplasm in hypertonic medium

c) shrinkage of nucleoplasm

d) none of them

#2. 1 µm is

a) 10^-6m

b) 10^-9m

c) 10^-10m

d) 10^-8m

#3. Cell theory was given by

a) Hooke

b) Virchow

c) Schleiden & Schwann

d) Haeckel

#4. Which one of the following is the correct definition of osmosis?

a) Movement of water molecules from a region of of higher concentration to a region of lower concentration through a semi-permeable 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 semi-permeable membrane.

d) Movement of solute molecules from lower concentration to higher concentration of solution through a semi-permeable membrane.

#5. Which cell organelles plays a crucial role in detoxifying many poisons & drugs in a cell?

a) Golgi apparatus

b) Lysosomes

c) Smooth endoplasmic reticulum

d) Vacuoles

#6. Which is called kitchen of the cell

a) chloroplast

b) Golgi bodies

c) endoplasmic reticulum

d) mitochondria

#7. 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 & lipids.

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

d) Plasma membranes contain chitin sugar in plants.

#8. The cell organelles involved in forming complex sugars from simple sugars are

a) endoplasmic reticulum

b) plastid

c) ribosomes

d) Golgi apparatus

#9. Cell arises from pre-existing cell was stated by

a) Haeckel

b) Virchow

c) Hooke

d) Schleiden

#10. Silver nitrate solution is used to study

a) endoplasmic reticulum

b) mitochondria

c) Golgi apparatus

d) nucleus

#11. Lipid molecules in the cell are synthesized by

a) Rough Endoplasmic Reticulum

b) Smooth Endoplasmic Reticulum

c) Plastid

d) Golgi Apparatus

#12. Which is correct?

a) Enzymes packed in lysosomes are made through RER (Rough Endoplasmic Reticulum).

b) Rough Endoplasmic Reticulum & Smooth Endoplasmic Reticulum produce lipid & protein respectively.

c) Endoplasmic Reticulum is related with the destruction of plasma membrane.

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

#13. Lysosomes arises from

a) endoplasmic reticulum

b) Golgi apparatus

c) mitochondria

d) nucleus

#14. Which of the following can be made into crystal

a) bacterium

b) sperm

c) virus

d) amoeba

#15. Living cells were discovered by

a) Robert Hook

b) Robert Brown

c) Purkinje

d) Leeuwenhoek

#16. Which is not correct?

a) Golgi apparatus is involved with the formation of lysosomes

b) Nucleus, mitochondria & plastid have DNA, hence they can make their own structural proteins

c) Mitochondria are said to be the powerhouse of the cell as ATP is generated in them

d) Cytoplasm is called as protoplasm

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

a) storage

b) locomotion

c) providing turgidity & rigidity to the cell

d) waste excretion

#18. Amoeba acquires its food through a process termed

a) exocytosis

b) endocytosis

c) plasmolysis

d) exocytosis & endocytosis both

#19. Which are not functions of ribosomes – a. it helps in manufacture in of protein molecules, b. it helps in manufacture in of enzymes, c. it helps in manufacture in of hormones, d. it helps in manufacture in of starch & molecules ?

a & b

b & c

a & d

c & d

#20. Which are covered by a single membrane – a. mitochondria, b. vacuole, c. lysosome, d. plastid ?

a, c

b, c

a, d

c, d

#21. Organelle without a cell membrane is –

a) ribosome

b) nucleus

c) Golgi apparatus

d) chloroplast

#22. The only cell organelle found in prokaryotic cell is

a) lysosome

b) plastid

c) mitochondria

d) ribosome

#23. Organelle other than nucleus containing DNA is –

a) endoplasmic reticulum

b) Golgi apparatus

c) mitochondria

d) lysosome

#24. The proteins & lipids, essential for building the cell membrane, are manufactured by

a) Rough Endoplasmic Reticulum

b) Golgi Apparatus

c) Plasma Membrane

d) Mitochondria

#25. The cell wall of which out of these is not made up of cellulose?

a) Bacteria

b) Hydrilla

c) Mango Tree

d) Cactus

#26. The undefined nuclear regions of prokaryotes are known as

a) nucleus

b) nucleons

c) nucleic acid

d) nucleoid

#27. Which is not related to endoplasmic reticulum?

a) it behaves as transport channel for proteins between nucleus & 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 of some biological activities of the cell

Finish

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To Be Continued