What subatomic particles make up the nucleus of an atom, and which particles sur

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What subatomic particles make up the nucleus of an atom, and which particles surround the nucleus? a. within the nucleus – protons; surround the nucleus – electrons b. within the nucleus – neutrons; surround the nucleus – protons c. within the nucleus – electrons; surround the nucleus – neutrons d. within the nucleus – neutrons, and electrons; surround the nucleus – neutrons e. within the nucleus – protons and neutrons; surround the nucleus – electrons 2. When an atom loses an electron, what happens? a. It becomes positively charged. b. It becomes negatively charged. c. It becomes neutral. d. Nothing happens. e. Atoms cannot lose an electron because atoms have a defined number of electrons. 3. Glucose (a monosaccharide) has the molecular formula C6H12O6. How many carbon atoms are in each glucose molecule? a. 1 b. 3 c. 5 d. 4 e. 6 4. Why are lipids unique when compared to the other macromolecule groups? a. Lipids do not contain monomers, which repeat to make polymers. b. Lipids are hydrophilic. c. Lipids are comprised of compounds, which are not structurally similar. d. a and c e. a, b, and c 5. A cell is unable to take up or make sugars. Which molecule(s) will it be unable to make? a. carbohydrates b. proteins c. lipids d. nucleic acids e. a and d 6. Which of the following is not a generally recognized characteristic of most (if not all) living organisms? a. the ability to reproduce b. the ability to maintain homeostasis c. the ability to obtain energy directly from sunlight d. the ability to sense and respond to the environment e. the ability to grow 7. What are the four types of organic molecules that make up all living things on Earth? a. carbohydrates, lipids, fats, nucleic acids b. carbon, hydrogen, oxygen, sulfur c. atoms, elements, matter, carbon d. lipids, nucleic acids, carbohydrates, proteins e. carbohydrates, proteins, sugars, lipids 8. What does it mean to say a macromolecule is a polymer? Give an example. Font Family Font Size 9. Humans' ability to shiver is an attempt to increase the body's internal temperature and maintain _______. a. stimuli b. carbon dioxide c. energy d. growth e. homeostasis 10. Which of the characteristics of life does a virus display, even though its characterization as being alive is controversial? a. the ability to reproduce b. the ability to maintain homeostasis c. the ability to grow d. a and c e. a, b, and c 11. Which of the following gives researchers hope that life may exist on Mars? a. Life on Earth survives in extreme conditions. b. Life on Earth adapted to extreme conditions. c. Life on Earth uses macromolecules manipulations to survive in unique environments. d. Versions of life may come in a form that does not contain all the hallmarks of life, such as viruses. e. all of the above 12. The basic building blocks of life are _______. a. DNA molecules b. cells c. proteins d. phospholipids e. inorganic molecules 13. The cell membrane is made of _______. a. water b. proteins c. phospholipids d. nucleotides e. b and c 14. Which of the following statements about carbon is FALSE? a. Carbon can bond with up to four elements at one time. b. Covalent bonds allow carbon to share electrons with other elements c. Carbon is an important element in organic molecules. d. Carbon can form inorganic molecules. e. If a soil sample contains carbon, it must contain life. 15. Which part of the cell membrane acts as a barrier to hydrophilic molecules entering the cell? a. hydrophilic heads b. hydrophilic tails c. hydrophobic heads d. hydrophobic tails e. Lipids are hydrophobic only, so it must be the whole molecule. 16. Olive oil is _______________ because _____________________. a. hydrophobic; it does not interact with water b. hydrophilic; it interacts with water c. hydrophobic; it interacts with water d. hydrophilic; it does not interact with water e. both hydrophilic and hydrophobic; it interacts with water and oil 17. The "stickiness" of water results from the ______________ bonding of water molecules. a. hydrogen b. ionic c. covalent d. acidic e. hydrophobic 18. Coffee or tea with sugar dissolved in it is an example of a water-based solution. Coffee in this case is the __________________, sugar is the _________________, and this means that the sugar molecules must be __________________. a. solvent; solute; hydrophobic b. solute; solvent; hydrophobic c. solvent; solute; hydrophilic d. solute; solvent; hydrophilic e. solution; solute; hydrophilic 19. As an acidic compound dissolves in water, the pH of the water _______. a. increases b. remains neutral c. decreases d. does not change e. becomes basic 20. The bond between the oxygen atom and a hydrogen atom in a water molecule is a(n) ___________ bond. a. covalent b. hydrogen c. ionic d. hydrophobic e. noncovalent 21. In terms of bond strength, which of the following is the weakest? a. covalent b. hydrogen c. ionic d. a and b e. Bonds cannot be strong or weak. 22. Which of the following are most likely to dissolve in olive oil? a. a polar molecule b. a nonpolar molecule c. a hydrophilic molecule d. a and c e. b and c What subatomic particles make up the nucleus of an atom, and which particles surround the nucleus? a. within the nucleus – protons; surround the nucleus – electrons b. within the nucleus – neutrons; surround the nucleus – protons c. within the nucleus – electrons; surround the nucleus – neutrons d. within the nucleus – neutrons, and electrons; surround the nucleus – neutrons e. within the nucleus – protons and neutrons; surround the nucleus – electrons

Explanation / Answer

1.

In an atom, protons and neutrons comprise nucleus and electrons surround the nucleus.

Option e is the answer.

2.

When an electron is lost from the atom, the atom gains positively charged.

Option a is the answer.

3.

Glucose molecule has 6 carbons, 12 hydrogens and 6 oxygen atoms.

Option e is the answer.

4.

Lipids are polymers and are not structurally similar.

Option a and c are correct

Hence answer is option d

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