Question 2 :
State true or false: Simple and complex tissues are made up of only one type of cells.
Question 3 :
State true or false: Tissue is a group of similar cells which perforn the same function and have a common origin.
Question 7 :
State true or false: Tissue is a group of similar cells wlhich perforn the same function and have a common origin.
Question 11 :
When the plasma membrane of a cell breaks down, it results in death of the cell as protoplasmic structures will get dispersed. Is it true?
Question 12 :
Amoeba obtain its food by the process of phagocytosis. State true or false.
Question 13 :
Name the organelle which show analogy written as: Power house of the cell.
Question 14 :
If cells of onion peel and RBC are separately kept in hypotonic solution what among the following will take place?
Question 15 :
We eat food composed of all the nutrients such as carbohydrates, proteins, fats, vitamins, minerals and water. After digestion, they are absorbed in the form of glucose, amino acids, fatty acids, glycerol, etc. What mechanisms are involved in the absorption of digested food and water?
Question 16 :
Name the organelle which show analogy written as: Transporting channels of the cell.
Question 17 :
Name the organelle which show analogy written as: Control room of the cell.
Question 18 :
Osmosis is diffusion of water from the region of its higher concentration (pure water or dilute solution) to the region of its lower concentration (strong solution) through a semipermeable membrane. Is it true?
Question 19 :
Do you agree that a cell is the building unit of an organism?
Question 20 :
Which kind of plastid is more common in root of the plant?
Question 21 :
When dry apricot are left for some time in pure water and later transferred to sugar solution, can we say that when placed in pure water, dry apricots swell up due to endosmosis. On being transferred to sugar solution, they shrink due to exosmosis?
Question 22 :
Endocytosis is swallowing up of food and other substances (bacteria, viruses) from external medium by the plasma membrane. This is possible only when plasma membrane is in direct contact with external medium. It occurs only in animal cells. Is this true?
Question 23 :
If the plasma membrane reptures or break down then the constant internal chemical composition of the cell will be lost and it will not be able to perform its basic functions. Is it true?
Question 24 :
A cell having low water concentration or hypertonic cell sap will undergo endosmosis and absorb water from outside. It would become turgid. Is it true?
Question 25 :
If the organisation of a cell is destroyed due to some physical or chemical influence, what will happen?
Question 27 :
Lysosomes are called scavengers of the cell because they remove cell debris consisting of dead and worn out cell organelle by digesting the same. Is it true?
Question 29 :
Can you name the organelles we have studied that contain their own genetic material?
Question 30 :
Name the organelle(s) in a plant cell that contain their own genetic material and ribosome.
