Biology - Mock Test 270

Question 2691

% of water in brain cells is?

A) 20% B) 80% C) 85% D) 90%

---

No Details

Question 2692

Which bond provides stability to complex carbohydrate molecules?

A) C-H B) C-O C) C-C D) C-N

---

No Details

Question 2693

Carbon atom is?

A) Monovalent B) Divalent C) Trivalent D) Tetravalent

---

No Details

Question 2694

The bond formed when two or more atoms complete their electron shells by sharing electrons is called?

A) Ionic bond B) Hydrogen bond C) Covalent bond D) Electrovalent bond

---

No Details

Question 2695

Which one is the basic element of organic compounds ?

A) Oxygen B) Hydrogen C) Sulphur D) Carbon

---

No Details

Question 2696

Reactions in which simple substances are combined to form complex substances are called?

A) Metabolic reactions B) Catabolic reactions C) Anabolic reactions D) None of these

---

No Details

Question 2697

Which chemical component has the greatest contribution in the total mammalian cell weight?

A) Proteins B) Carbohydrate C) Lipids D) Water

---

No Details

Question 2698

Which chemical component has the same % in bacterial as well as the mammalian cell?

A) Water B) Carbohydrate C) Proteins D) Lipids

---

No Details

Question 2699

Which one is an organic compound?

A) CO2 B) Water C) Lipids D) HCI

---

No Details

Question 2700

The branch of biology which deals with the study of chemical compounds and the chemical processes in the fliving organisms is called?

A) Chemistry B) Biochemistry C) Molocular biology D) Both a and b

---

No Details