More from F.I BIOEDUCATIONALSUPPORT

Question 1 :
Differentiate the given activity on the basis of voluntary or involuntary muscles: Jumping of frog.

Question 2 :
Xylem allows to transport water and minerals vertically. TRUE or FALSE ?

Question 4 :
Cells of cork are dead and have a substance called __________ in their walls that makes them impervious to gases and water.

Question 6 :
Epidermis protects all the parts of the plant. TRUE or FALSE ?

Question 8 :
In some plants like desert plants, epidermis has a thick waxy coating of cutin (chemical substance with waterproof quality) on its outer surface. TRUE or FALSE ?

Question 10 :
State true or false: Tissue is a group of similar cells wlhich perforn the same function and have a common origin.

Question 11 :
State true or false: Tissue is a group of similar cells which perforn the same function and have a common origin.

Question 15 :
The movement of food in the alimentary canal or the contraction and relaxation of blood vessels are voluntary movements. TRUE or FALSE ?

Question 16 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d2def59b460d7261f647.PNG' /> In the above figure, perform the activity as given. • Take a plant stem and with the help of your teacher cut into very thin slices or sections. • Now, stain the slices with safranin. Place one neatly cut section on a slide, and put a drop of glycerine. • Cover with a cover-slip and observe under a microscope. Observe the various types of cells and their arrangement. Compare it with the given figure. Then, answer the question given below: How many types of cells can be seen?

Question 17 :
Depending on shape and function, which tissue is classified as squamous, cuboidal, columnar, ciliated and glandular?

Question 18 :
Epithilial tissue , Connective tissue , Muscular tissue and Nervous tissue are the types of animal tissue . YES or NO ?

Question 19 :
Which of these is not the role of epidermis in plants?

Question 20 :
The cells of connective tissue are loosely spaced and embedded in an intercellular matrix. TRUE or FALSE ?

Question 21 :
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 22 :
Carry out the following osmosis experiment: Take four peeled potato halves and scoop each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now, (a) Keep cup A empty (b) Put one teaspoon sugar in cup B (c) Put one teaspoon salt in cup C (d) Put one teaspoon sugar in the boiled potato cup D. Keep these for two hours. Then observe the four potato cups and Why is potato A necessary for this experiment?

Question 23 :
Mitochondrion is known as the powerhouse of the cell because it contains enzymes that are needed for stepwise oxidation of food stuffs (carbohydrate, fats or lipids and proteins) present in the cells to $CO_2$ and water. Is it true?

Question 24 :
Carry out the following osmosis experiment: Take four peeled potato halves and scoop each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now, (a) Keep cup A empty (b) Put one teaspoon sugar in cup B (c) Put one teaspoon salt in cup C (d) Put one teaspoon sugar in the boiled potato cup D. Keep these for two hours. Then observe the four potato cups and Explain why water does not gather in the hollowed out portions of A and D?

Question 25 :
Name the organelle which show analogy written as: Digestive bag of the cell.

Question 26 :
A cell having equal water concentration to its surrounding medium will neither gain nor lose water to the external medium. Is it true?

Question 27 :
The skin of your fingers shrink when you wash clothes for a long time due to exosmosis. Is it true?

Question 28 :
Which kind of plastid is more common in root of the plant?

Question 30 :
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 31 :
When a red blood cell is kept in concentrated salt solution, they shrink and give a shrivelled appearance (crenation). Is it true?

Question 34 :
Name the organelle which show analogy written as: Power house of the cell.

Question 35 :
If the organization of a cell is destroyed due to some physical and chemical influence, it will not be able to maintain homeostasis and thus will not be able to perform basic functions ( such as respiration, obtaining nutrition ,etc. )and such a cell will ultimately die. Is it true?

Question 36 :
How do substances such as carbon dioxide and water move in and out of the cell?

Question 37 :
If you are provided with some vegetables to cook, you generally add salt into vegetables during cooking process. After adding salt, vegetables release water. What mechanism is responsible for this?

Question 38 :
Which kind of plastid is more common in leaves of the plant?

Question 39 :
Name the organelle which show analogy written as: Packaging and dispatching unit of the cell.

Question 40 :
Name the organelle which show analogy written as: Control room of the cell.

Question 41 :
The diffusion of water or solvent through a semi-permeable membrane from a solution of lower concentration of solutes to a solution of higher concentration of solutes is called _______.

Question 42 :
As lysosomes are organelles which on bursting can kill cells possessing them, they are called suicide bags. Is it true?

Question 45 :
As lysosomes are organelles which on bursting can kill cells possessing them, they are called suicide bags. Is it true?

Question 46 :
Plasma membrane is called selectively permeable membrane because it allows the movement of only selected molecules across it. State true or false

Question 47 :
Can you name the organelles we have studied that contain their own genetic material?

Question 48 :
Name the organelle which show analogy written as: Storage sac of the cell.

Question 49 :
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?