Why do we fall ill extra questions Mcq?
Why do we fall ill extra questions Mcq?
(b) Cancers can be caused by genetic abnormalities. (c) Peptic ulcers are caused by eating acidic food….Why do we Fall Ill Class 9 MCQs Questions with Answers.
| Column I | Column II |
|---|---|
| (b) Jaundice | (ii) Antibiotic |
| (c) Sleeping sickness | (iii) Female anopheles |
| (d) Acne | (iv) Sexually transmitted disease |
| (e) Virus | (v) Leishmania |
Which of the following cell organelles help in the storage modification and packaging of substances manufactured in the cell *?
Golgi apparatus
The correct answer is Golgi apparatus. Golgi Apparatus is responsible for storage, modification, and packing of products in vesicles.
Is matter around us pure class 9 Mcq with answers online test?
Yes, it is the correct answer as carbon is not a sublimable substance….
| 1. Separation of cream from milk | A. Chromatography |
| 2. Separation of oil from water | B. Centrifugation |
| 3. Separation of pigment from natural colours | C. Fractional distillation |
| 4. Separation of components of air | D. Separating funnel |
What is allows or permits the entry and exit of some material in and out of the cell?
The plasma membrane
The plasma membrane allows or permits the entry and exit of some materials in and out of the cell. Some substances like CO2 or O2 gases can move across the cell membrane by a process called diffusion.
What is the gravitational force between two objects Mcq?
Answer: The force of gravitational attraction between the two bodies of mass (M) and (m) is F=Gr2Mm.
Is matter in our surroundings pure?
In other words, a substance is a pure single form of matter. As we look around, we can see that most of the matter around us exist as mixtures of two or more pure components, for example, sea water, minerals, soil etc. are all mixtures. A substance cannot be separated into other kinds of matter by any physical process.
Is cytoplasm also called protoplasm?
Cytoplasm is full of proteins, which are essential to your body. Cytoplasm is also called protoplasm.
Who discovered the nucleus of the cell?
Robert Brown
-In 1831, Robert Brown discovered the cell nucleus.
Is matter around us pure Class 9 exam fear?
Everything around us is made up of matter. For example: – Wood, paper, even human beings are made up of matter. All the matter present around us is not pure.
Why is the cell membrane called selectively permeable membrane?
Answer- Plasma membrane called a selectively permeable membrane because it regulates the movement of substances from within to outside of the cell. This means that the plasma membrane allows the entry of some substances while preventing the movement of some other substance.
Which is called selectively permeable membrane?
The plasma membrane is called as selectively permeable membrane because it regulates the movement of substances in and out of the cell. It means that the plasma membrane allows some material to pass through it while at the same time it blocks other material from entering through it.
When an apple falls from a tree?
When it falls from a tree, its gravitational potential energy starts decreasing and becomes zero as it reaches the ground. There will be no change in gravitational potential energy after it strikes the ground as the gravitational potential energy becomes zero after reaching the ground.