Question

1. Name the cell organelle which is generally small sized in animal cells and large in plant cells.(1)
2. name the process by which Amoeba acquires its food.(1)
3.State the function of chromosome in a Cell. (1)
4. Expand ATP. Where is it produced.(1)
5. Identify and name the following structures: (1)
a) the undefined nuclear region of prokaryotic cell.
b) site of energy released inside the cell.
6. What is endoplasmic reticulum? Name the two types of endoplasmic reticulum. Write its main functions.(2)
7. Differentiate between osmosis and diffusion.(2)
8. Describe the role played by the lysosomes in a cell. Why these are termed as suicidal bags? How do they perform their function?(3)
9. a) which cell organelle would you associate with ATP production? How is this organelle able to make its own proteins?
b) A student performed an experiment by placing the deshelled egg in a concentrated salt solution for 5 minutes. What changes did he observed in the egg? Give reason for the same.(3)
10. a) why is the cell called the structural and functional unit of life. b)why is the plasma membrane called a selectively permeable membrane?
c) write the name of different plant parts in which chromoplast, chloroplast and leucoplast are present.(5)​

Answer 1

1. vacuole
2. endocytosis
3. chromosome contains genetic material called gene which help in transfer of inheritance characteristics from parents to offsprings
4. Adenosene Tri phosphate. It is produced in the mitochondria.
5. a) nucleoid b) mitochondria
6. endoplasmic reticulum is a cell organelle. Two types of endoplasmic reticulum are :

1. rough endoplasmic reticulum

2. smooth endoplasmic reticulum

it's main functions are : it helps in synthesis of fats and lipids with the help of ribosomes it synthesis proteins and also help in membrane Biogenesis.

7 .diffusion = it is a process in which gases moves through a semipermeable membrane from a region of higher concentration to lower concentration.

• osmosis : it is a process in which water molecules move through a semipermeable membrane through a region of higher concentration to lower concentration.

8. lysosomes helping the elimination of foreign substances entering the cell and destroying the worn out substances in the cell. it is called suicidal bag because when the cell when is cell don't work properly and then the lysosomes burst and and its digestive enzymes destroy its own cell there for it is called suicidal bag.

9. mitochondria. it is able to make its own proteins because it contains its own ribosomes.

Answer 2

1.vacoule 2.endocytossis 3.to carry information about structure and function of the cell. 4.ATP stands for adenosine triphosphate. it is called energy currency of the cell.it is produced in [email protected]. b.mitochondria.6.a fllaten membranous structure that is found near the nucleus is called endoplasmic reticulum (ER) . they are of two types (a.smooth ER b.rough ER . it's main function is to synthesise protein and lipids and to provide space for various chemical reaction that takes place in the cell.

7.difussion is the spontaneous movement of substance from the region of higher concentrations to the region of lower concentrations

while ,

osmosis is diffusion of water through a selectively permeable membrane.

8.lysosome acts as waist disposal system of the cell.they are called suicidal bag of the cell because sometimes they digest the whole cell.they perform their function with the help of High digestive enzyme

9.mitochondria. it makes it's own protein because it has own ribosome..

(b) if it a hypotonic solution then the egg will swail up.

10.it is called structural unit o because it is building blocks of our body .It is called functional unit because it perform all the functions at basic level.(b) because it allows only some selected substance to move in and out of the cell membrane.(c) chromoplast is found in steam and flowers , chloroplast is found in leaves and leucoplast is found in roots.

. That's enough bro