Total Question


Compleated Test


Total Syllabus


Visitor Counter

Question - 1 : সালোকসংশ্লেষনে সবচেয়ে বেশি হয় -

a) নীল আলোতে

b) লাল আলোতে

c) সবুজ আলোতে

d) বেগুনি আলোতে

Discus in Board
Question - 2 : কোনটি শুদ্ধ বানান ?

a) স্বায়ত্ত্বশাসন

b) স্বায়ত্তশাসন

c) সায়ত্ত্বশাসন

d) স্বায়ত্বশাসন

Discus in Board
Question - 3 : If the second day of the month is a Monday, the eighteenth day of the month is a _.

a) Sunday

b) Tuesday

c) Wednesday

d) Monday

Discus in Board
Question - 4 : Amnesty International কত সালে নোবেল শান্তি পুরস্কার পেয়েছিল?

a) ১৯৮১

b) ১৯৭৯

c) ১৯৭৮

d) ১৯৭৭

Discus in Board
Question - 5 : টাকায় ৩টি করে লেবু কিনে টাকায় ২ টি করে বিক্রি করলে শতকরা কত লাভ হবে?

a) ৩০%

b) ২০%

c) ৫০%

d) ৩৩

Discus in Board
Question - 6 : বিদ্যাপতি কোথাকার কবি ছিলেন ?

a) বর্ধমানের

b) বৃন্দাবনের

c) মিথিলার

d) নবদ্বীপের

Discus in Board
Question - 7 : আপনাকে আরো ভাল করতে হবে।

a) You’ve to keep better.

b) You’ve to keeping bettering.

c) You’ve to kept bettering.

d) You’ve to keep bettering.

Discus in Board
Question - 8 : There is no alternative _training.

a) than

b) of

c) for

d) To

Discus in Board
Question - 9 : তার মা তাকে স্কুলে যেত দিলেন |

a) His mother let to him go school.

b) His mother let him goes school.

c) His mother let him go to school.

d) His mother let him go school.

Discus in Board
Question - 10 : 'পাখি সব করে রব রাতি পোহাইল' পঙতির রচয়িতা কে ?

a) রামনারায়ণ তর্করত্ন

b) বিহারীলাল চক্রবর্তী

c) কৃষ্ণচন্দ্র মজুমদার

d) মদনমোহন তর্কালংকার

Discus in Board

Red Blood Cells (likewise called erythrocytes or RBCs)

Known for their brilliant red shading, red cells are the most bounteous cell in the blood, representing around 40 to 45 percent of its volume. The state of a red platelet is a biconcave circle with a straightened focus - as it were, the two essences of the circle have shallow bowl-like spaces (a red platelet resembles a doughnut).

Generation of red platelets is constrained by erythropoietin, a hormone created fundamentally by the kidneys. Red platelets start as juvenile cells in the bone marrow and after around seven days of development are discharged into the circulation system. In contrast to numerous different cells, red platelets have no core and can without much of a stretch change shape, helping them fit through the different veins in your body. Notwithstanding, while the absence of a core makes a red platelet progressively adaptable, it additionally restricts the life of the cell as it goes through the littlest veins, harming the cell's films and draining its vitality supplies. The red platelet makes due all things considered just 120 days.

Red cells contain a unique protein called hemoglobin, which helps convey oxygen from the lungs to the remainder of the body and afterward returns carbon dioxide from the body to the lungs so it tends to be breathed out. Blood seems red as a result of the huge number of red platelets, which get their shading from the hemoglobin. The level of entire blood volume that is comprised of red platelets is known as the hematocrit and is a typical proportion of red platelet levels.