BLG1501 Assignment 1 2024 Semester1 (Solutions)

BLG1501 Assignment 1 2024 Semester1 (Solutions) Question 1 Complete Marked out of 2.00 Flag question Question text What is the basic unit of life? a. Cells b. Nuclei c. Organelles d. DNA Question 2 Complete Marked out of 2.00 Flag question Question text RNA is an example of a _____. a. polysaccharide b. fat c. polypeptide d. nucleic acid Question 3 Complete Marked out of 2.00 Flag question Question text What is the chemical composition of fats? a. fatty acids and glycerol b. glycogen granules c. combinations of long-chain fatty acids d. hexose polymers Question 4 Complete Marked out of 2.00 Flag question Question text The electron configuration 1s22s22p6 belongs to _____. a. carbon b. oxygen c. nitrogen d. neon Question 5 Complete Marked out of 2.00 Flag question Question text Which of the following describes a bond in a protein? a. Peptide bonds b. Disulfide bridge c. Ester bonds d. Glycosidic bonds Question 6 Complete Marked out of 2.00 Flag question Question text Which statement is true about mitosis? Select one: a. Mitosis occurs in every cell of the body. b. Mitosis occurs in sexual reproduction. c. Mitosis result in the formation of haploid cells. d. The purpose of mitosis is cell regeneration, and replacement, and growth. Question 7 Complete Marked out of 2.00 Flag question Question text The interaction in which an organism eats a plant is known as _____. Select one: a. commensalism b. predation c. parasitism d. herbivory Question 8 Complete Marked out of 2.00 Flag question Question text The primary storage form of carbohydrate in the body is _____. Select one: a. glucose b. glycogen c. starch d. fibre Question 9 Complete Marked out of 2.00 Flag question Question text Distilled water has a pH of _____. a. 7 b. 3 c. 5 d. 10 Question 10 Complete Marked out of 2.00 Flag question Question text This electron configuration 1s22s22p4 belongs to _____. a. carbon b. nitrogen c. neon d. oxygen Question 11 Complete Marked out of 2.00 Flag question Question text Which of the following describes a fatty acid that has more than one double bond? a. saturated b. hydrogenated c. polyunsaturated d. monounsaturated Question 12 Complete Marked out of 2.00 Flag question Question text These elements occur in smaller quantities (traces) in living organisms. a. neon (N), lead (Pb), mercury (Hg) b. oxygen (O), carbon (C), hydrogen (H) c. nitrogen (N), calcium (Ca) and phosphorus (P) d. potassium (K), sulphur (S), sodium (Na) Question 13 Complete Marked out of 2.00 Flag question Question text The four characteristics of water that are emergent properties resulting from hydrogen bonding are _____. a. cohesive, adhesive, specific heat capacity, evaporative cooling b. viscosity, polar molecule, specific heat capacity, evaporative cooling c. viscosity, adhesive, specific heat capacity, evaporative cooling d. viscosity, solvent, specific heat capacity, evaporative cooling Question 14 Complete Marked out of 2.00 Flag question Question text Human activities such as agriculture, urban development, forestry, mining are examples of _____. Select one: a. overharvesting b. introduction of species c. habitat loss d. global change Question 15 Complete Marked out of 2.00 Flag question Question text The atomic number refers to _____. a. the number of electrons in an atom b. the combined number of protons and electrons of an atom c. combined number of protons and neutrons of an atom d. the number of protons in an atom Question 16 Complete Marked out of 2.00 Flag question Question text The following term is not part of the group _____. a. hypertonic b. hypotonic c. isotonic d. solution Question 17 Complete Marked out of 2.00 Flag question Question text It is an example of an autotroph. Select one: a. amoeba b. dog c. algae d. sheep Question 18 Complete Marked out of 2.00 Flag question Question text Chitin is an example of a _____. a. polypeptide b. nucleic acid c. fat d. polysaccharide Question 19 Complete Marked out of 2.00 Flag question Question text These are the sites of manufacture and storage of important chemical compounds used by the cells of autotrophic eukaryotes. Select one: a. plastids b. endoplasmic reticulum c. ribosomes d. the Golgi apparatus Question 20 Complete Marked out of 2.00 Flag question Question text Which statement best describes chemical work? Select one: a. The pumping of substances across membranes against spontaneous movement. b. Movement of chromosomes during cellular reproduction. c. The pushing driving of endergonic reactions, such as the synthesis of polymers from monomers. d. The beating of cilia, contraction of muscles