8. In an electrocardiogram (ECG), there are three major signals. The first one is called P wave, the
9. What is NOT a criterion for evolution to happen in a natural population?(A) Natural selection occ
11. Protists are __________.(A) larger prokaryotes(B) the organisms first found by Antoni van Leeuwe
12. What are the levels of biodiversity?(A) Phenotypic diversity, species diversity, ecosystems dive
13. Mutations in which of the following genes lead to transformations in the identity of entire body
14. Which organelle contains single membrane?(A) ribosome (B) chloroplast (C) mitochondrion (D) nucl
15. The uptake of low-density lipoproteins is through __________.(A) pinocytosis (B) facilitated tra
16. What complex can be inhibited by hydrogen cyanide (HCN)?(A) Complex I (B) Complex II (C) Complex
17. The linking number of supercoiled DNA can be changed by __________.(A) DNA polymerase (B) Histon
19. What following compounds is NOT required for purine biosynthesis?(A) CO2 (B) Glutamate (C) Aspar
21. A lipid derived from isoprenoid precursors is __________.(A) palmitate (B) cholesterol (C) arach
22. The biological function of the pentose phosphate pathway is to __________.(A) act as a source of
23. What is the direct product of pyruvate carboxylase?(A) Acetyl-CoA (B) Citrate (C) Lactate (D) Ph
24. Which of the following enzymes of the citric acid cycle listed below results in the formation of
25. Which of the following amino acids is a key gluconeogenic amino acid that is synthesized in musc
26. Fatty acid synthesis uses which unit for each stepwise addition?(A) Acetyl-CoA (B) Malonyl-CoA (
27. Which compound represents the most highly concentrated form of stored biological energy?(A) Prot
29. What following compounds can enhance inorganic iron absorption from our meal?(A) Vitamin C (B) V