Chapters
Chapter 2: Plants: Structure and Function
Chapter 3: Properties of Natural Resources
Chapter 4: Nutrition in Living Organisms
Chapter 5: Food Safety
Chapter 6: Measurement of Physical Quantities
Chapter 7: Motion, Force and Work
Chapter 8: Static Electricity
Chapter 9: Heat
Chapter 10: Disaster Management
Chapter 11: Cell Structure and Micro-organisms
Chapter 12: The Muscular System and Digestive System in Human Beings
Chapter 13: Changes – Physical and Chemical
Chapter 14: Elements, Compounds and Mixtures
Chapter 15: Materials We Use
Chapter 16: Natural Resources
Chapter 17: Effects of Light
Chapter 18: Sound: Production of Sound
Chapter 19: Properties of a Magnetic Field
Chapter 20: In the World of Stars
Chapter 11: Cell Structure and Micro-organisms
Balbharati solutions for General Science 7th Standard Maharashtra State Board Chapter 11 Cell Structure and Micro-organisms Exercise [Page 80]
Answer the following question.
What is a 'cell'?
Answer the following question.
Name the different organelles in a cell?
Answer the following question.
What are micro-organisms?
Answer the following question.
Which are the different types of micro-organisms?
Fill in the blanks with the proper word.
The organelle called the ........... is present in plant cells only.
Fill in the blanks with the proper word.
Garbage is converted into .......... by micro-organisms.
Fill in the blanks with the proper word.
In the cell, photosynthesis is carried out with the help of ............ .
Fill in the blanks with the proper word.
An electron microscope is necessary for the study of ............ .
What is difference between us?
Plant cell and animal cell.
What is difference between us?
Prokaryotic cell and eukaryotic cell.
Sketch and describe in your own words, the plant cell
Sketch and describe in your own words, the animal cell
Explain the uses of micro-organisms.
Explain the harmful effects of micro-organisms.
Give reasons.
Diseases spread on a large scale during periods of heavy rainfall and floods.
Give reasons.
There is a possibility of food poisoning if we eat stale food.
Give reasons.
Soil is turned over during tilling.
Give reasons.
Fungus grows quickly in moist or humid conditions.
Give reasons.
A refrigerator is used in almost every home.
Give reasons.
Bread 'rises' during baking.
Give reasons.
Fodder is soaked in water before offering to cattle.
When will you use a simple microscope and when, a compound microscope? Explain in detail how you will use them.
Chapter 11: Cell Structure and Micro-organisms
Balbharati solutions for General Science 7th Standard Maharashtra State Board chapter 11 - Cell Structure and Micro-organisms
Balbharati solutions for General Science 7th Standard Maharashtra State Board chapter 11 (Cell Structure and Micro-organisms) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board General Science 7th Standard Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster.
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Concepts covered in General Science 7th Standard Maharashtra State Board chapter 11 Cell Structure and Micro-organisms are Cell: the Fundamental Unit of Life, Cell to Organism, The Invention of the Microscope and the Discovery of Cell, Organisms Show Variety in Cell Number, Shape and Size, Plant Cell and Animal Cell, Structure of a Cell, Cell Wall - “Supporter and Protector”, Plasma Membrane, Cytoplasm - “Area of Movement”, Nucleus - “Brain” of the Cell, Endoplasmic Reticulum (ER), Golgi Apparatus - "The delivery system of the cell", Lysosome - “Suicidal Bag”, Mitochondria - “Power House of the Cell”, Non-living Substances Or Cell Inclusion, Plastids, Microorganisms (Microbes) and Microbiology, Harmful Effects of Microorganisms (Microbes), Uses of Microorganisms (Microbes), Pathogens: Disease-producing Micro-organisms.
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