BIOLOGY Aluko CHAPTER 2 QUESTIONS AND ACCURATE SOLUTIONS .

BIOLOGY (Aluko) CHAPTER 2 QUESTIONS AND
ACCURATE SOLUTIONS .
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.