Bio 101 Exam Collection

Bio Exam One

1. The presence of a cell wall and cell membrane, but the absence of cellular organelles would be a
description of which of the following classes of cells?
a. prokaryotic cells
b. eukaryotic cells
2. Which one of the following is a function of a protein?
a. serves as an enzyme and speeds up a chemical reaction
b. stores genetic material and enables its transmission to the next generation
c. provides energy for a muscle contraction
d. is a primary structural component of DNA
3. Which of the following molecules is broken down as a result of the metabolic process known as
glycolysis?
a. pyruvate
b. carbon dioxide
c. glucose
d. ATP
4. The purpose of the Krebs cycle is to produce high energy carrier molecules like NADH and FADH2 that
then feed into the electron transport chain. During this process, another by-product molecule is
produced. Which molecule is produced during the Krebs cycle? Hint: the Krebs cycle is part of aerobic
respiration.
a. water
b. carbon dioxide
c. lipids
d. glucose



Question 5
pts
One of the end products of glycolysis is:

fructose

glucose

carbon dioxide

pyruvate

Question 7
pts
The purpose of glycolysis and the Krebs cycle is to use split glucose to harness the energy in the bonds thereby
generating high energy molecules that feed electrons into the electron transport chain. If an organisms has a
defect in an electron chain molecule but can complete glycolysis, would the organism be able to survive?
No, the organism would not be able to produce any energy.

, No, the organism would not be able to control the large amount of energy produced.

Yes, although the organism may be limited in size because only a small amount of energy is produced.

Yes, although the organism would not have any way of controlling the large amount of energy produced.
 wrong

Question 8
pts
Which of the following is an incorrect base pairing for DNA?

cytosine - guanine

adenine-thymine

adenine- urocil

thymine - adenine




Question 9
pts
Fill in the missing term in the following sequence:

A gene comprised of DNA is transcribed to make messenger ________ which is then translated to protein.

DNA

enzyme

RNA

ATP



Question 10
pts
The energy molecule produced as a result of cellular respiration is:

ATP

fat

GTP

, dNTP



Question 11
pts
The type of bond that holds together two amino acids in a protein (polypeptide chain) is called:

lipidosidic

peptide

rolltide

aminocidic



Question 12
pts
When two macromolecules are joined by a covalent bond during a biochemical reaction, a(n)
______________ molecule is given off by a process called condensation or dehydration synthesis.

ATP

water

ADP

coenzyme



Question 13
pts
In which of the following would you find lipids?

applesauce

butter

water

diet soft drinks



Question 14

, pts
In cellular respiration, most of the ATP's are produced during which process?

electron transport reaction

photosynthesis

Krebs cycle

fermentation

glycolysis

Question 15
pts
Which of the following molecules is used directly within the cell to perform functions that require energy:

Protein  wrong

fats

ATP

carbohydrates



Question 16
pts
Nucleic acids are found within the cell:

free-floating in the cytoplasm

in the nucleus

in the lysozyme

in the cell membrane



Question 17
pts
Which one of the following forms a bilayer structure that is found in cell membranes?

phospholipids