BIOLOGY (Aluko) CHAPTER 2 QUESTIONS AND
ACCURATE SOLUTIONS 100% VERIFIED.
When an atom loses an electron, what happens?
Correct Answer -It becomes positively charged
_____ make up the nucleus of an atom, whereas _____ surround the
nucleus.
Correct Answer -Protons and neutrons; electrons
How are lipids unique when compared to other macromolecule groups?
Correct Answer -Lipids do not contain monomers and they are comprised
of compounds
A cell is unable to take up or make sugars. Which molecules will it be
unable to take up or make?
Correct Answer -carbohydrates and nucleic acids
The ability to _____ is not a generally recognized characteristic of most
(if not all) living organisms?
Correct Answer -obtain energy directly from sunlight
Which of the following does NOT give researchers hope that life may
exist on Mars?
Correct Answer -Rovers have captured images of bacterial cells within
rocks.
, Identify the smallest subunits of life that can also sometimes be
considered living organisms on their own
Correct Answer -cells
Cell membrane is made of
Correct Answer -phospholipids and proteins
Olive oil is _______________ because ____________________
Correct Answer -hydrophobic; it does not interact with water
The "stickiness" of water results from the ______________ bonding of
water molecules
Correct Answer -hydrogen
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
________________
Correct Answer -solvent; solute; hydrophilic
As an acidic compound dissolves in water, the pH of the water _______
Correct Answer -decreases
The bond between the oxygen atom and a hydrogen atom in a water
molecule is a(n) ___________ bond)
Correct Answer -covalent
Which trait is NOT a functional characteristic of all living things?
Correct Answer -protect self from predators
ACCURATE SOLUTIONS 100% VERIFIED.
When an atom loses an electron, what happens?
Correct Answer -It becomes positively charged
_____ make up the nucleus of an atom, whereas _____ surround the
nucleus.
Correct Answer -Protons and neutrons; electrons
How are lipids unique when compared to other macromolecule groups?
Correct Answer -Lipids do not contain monomers and they are comprised
of compounds
A cell is unable to take up or make sugars. Which molecules will it be
unable to take up or make?
Correct Answer -carbohydrates and nucleic acids
The ability to _____ is not a generally recognized characteristic of most
(if not all) living organisms?
Correct Answer -obtain energy directly from sunlight
Which of the following does NOT give researchers hope that life may
exist on Mars?
Correct Answer -Rovers have captured images of bacterial cells within
rocks.
, Identify the smallest subunits of life that can also sometimes be
considered living organisms on their own
Correct Answer -cells
Cell membrane is made of
Correct Answer -phospholipids and proteins
Olive oil is _______________ because ____________________
Correct Answer -hydrophobic; it does not interact with water
The "stickiness" of water results from the ______________ bonding of
water molecules
Correct Answer -hydrogen
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
________________
Correct Answer -solvent; solute; hydrophilic
As an acidic compound dissolves in water, the pH of the water _______
Correct Answer -decreases
The bond between the oxygen atom and a hydrogen atom in a water
molecule is a(n) ___________ bond)
Correct Answer -covalent
Which trait is NOT a functional characteristic of all living things?
Correct Answer -protect self from predators
