Umar Draz, Author at DocMCQs

Which organelle is responsible for protein synthesis in a cell?

A. Mitochondria

B. Ribosome

C. Golgi apparatus

D. Lysosome

Correct answer is: B. Ribosome

Ribosomes are the cellular structures that synthesize proteins by translating mRNA.

What is the approximate blood circulation rate in human capillaries in mm/sec?

A. 0.1 mm/sec

B. 1 mm/sec

C. 10 mm/sec

D. 100 mm/sec

Correct answer is: B. 1 mm/sec

Blood flows slowly in capillaries at about 1 mm/sec to allow nutrient and gas exchange.

Malaria is spread through:

A. Bacteria

B. Virus

C. Plasmodium

D. Anopheles

Correct answer is: C. Plasmodium

Malaria is caused by Plasmodium species, which are transmitted to humans through Anopheles mosquito bites.

Which is a key gland that plays a crucial role in digestion by producing enzymes that break down carbohydrates, proteins, and fats, and also secretes bicarbonate to neutralize stomach acid?

A. Pancreas

B. Gallbladder

C. Thyroid

D. Liver

Correct answer is: A. Pancreas

The pancreas produces digestive enzymes and bicarbonate, aiding in digestion and neutralizing stomach acid.

What is the function of the IF function in Excel?

A. To perform a logical test and return a value based on the result

B. To add up a range of cells

C. To find the average of a range of cells

D. To count the number of cells in a range

Correct answer is: A. To perform a logical test and return a value based on the result

The IF function checks a condition and returns one value if TRUE and another if FALSE.

In PowerPoint, Themes could be found under:

A. Home tab

B. Design tab

C. Insert tab

D. View tab

Correct answer is: B. Design tab

Themes in PowerPoint are available under the Design tab to quickly format presentations.

From which tab can headers and footers be inserted in MS Word?

A. Home

B. Insert

C. Layout

D. View

Correct answer is: B. Insert

Headers and footers in Word are added via the Insert tab.

By default, how many worksheets are there in a new Microsoft Excel workbook?

A. 1

B. 3

C. 5

D. 10

Correct answer is: A. 1

Excel 2013 and later versions default to 1 worksheet in a new workbook for simplicity.

Through which tab can comments be added in MS Word?

A. Home

B. Insert

C. Review

D. View

Correct answer is: C. Review

Comments are added to documents in Word using the Review tab.

If 1/5 of the keyboards are not working out of a total of 3,000, how many keyboards are working?

A. 1000

B. 1500

C. 2000

D. 2400

Correct answer is: D. 2400

1/5 of 3,000 = 600 not working; 3,000 − 600 = 2,400 working keyboards.

Author name: Umar Draz