PCB3023 Exam 1, cell bio test 1 FAU
Theisen, CH.1: Cells and Genome
Practice Questions and Answers
proteins are able to bind to which of the following types of
biological molecules - Answer️️ -- amino acids, sugars,
nucleotides, lipids, are basis for most reactions in cells. All proteins
...
Molecular Cell Biology PCB 3023 BROWARD COLLEGE/ UNIVERSITY of
SOUTH FLORIDA/ UCF COLLEGE Of Sciences
PCB3023 Exam 1, cell bio test 1 FAU
Theisen, CH.1: Cells and Genome
Practice Questions and Answers
proteins are able to bind to which of the following types of
biological molecules - Answer✔️✔️-- amino acids, sugars,
nucleotides, lipids, are basis for most reactions in cells. All proteins
are able to bind to one or more molecules, often other proteins and
bound substances such as ligands or substrates.
in cells the strongest chemical interaction is? - Answer✔️✔️--
covalent bonds ; covalent bonds are strong, stable, long-lasting.
hydrogen bonds are... - Answer✔️✔️-polar covalent, individually
weak, but many bonds together can be strong.
ionic bonds are... - Answer✔️✔️-strong and pliable but can easily be
disrupted by polar solvents (eg. water)
van der waals forces are... - Answer✔️✔️-individually very weak
the majority of biological catalyst are made from... - Answer✔️✔️--
amino acids
In the A, B, C class of protein transport pump. The conformation
changes that lead to translocation of the transporter substance are
Molecular Cell Biology PCB 3023 BROWARD COLLEGE/ UNIVERSITY of
SOUTH FLORIDA/ UCF COLLEGE Of Sciences
caused by... - Answer✔️✔️-- repeated cycles of ATP binding and
hydrolysis
True regarding prokaryotic cells? - Answer✔️✔️-- has a cell wall
- reproduce by binary fission
- do not exist as true...
- utilize double strands for hereditary material
- do NOT package their DNA so they do NOT need histones
Evolution of the nucleus in eukaryotic organisms has allowed... -
Answer✔️✔️-- Segregation of DNA from other cellular processes
- Increase the size of the DNA molecule
When a carbohydrate is oxidized it loses both ____ and ____. -
Answer✔️✔️-- electrons and energy ; Oxidation is the loss of electrons
and energy. The atom is left with a more POSITIVE charge.
what is meant by high specificity between molecules? - Answer✔️✔️--
highly complementary physical shape
- highly complementary electro chemical properties
The histones used to package newly replicated DNA - Answer✔️✔️--
added to DNA as it is emerging from the replication machinery
Molecular Cell Biology PCB 3023 BROWARD COLLEGE/ UNIVERSITY of
SOUTH FLORIDA/ UCF COLLEGE Of Sciences
Because its circular, replication of prokaryotic DNA does NOT
require... - Answer✔️✔️-- Telomerase function
Telomerase is used to stabilize the ends of Eukaryotic chromosomes
which are linear. Since prokaryotic DNA is not linear, it does NOT
need telomerase to stabilize its ends.
Flipping out refers to... - Answer✔️✔️-- The temporary separation of a
base from its compliment to allow close inspection.
activation energy is a property of... - Answer✔️✔️-- all types of
chemical reactions
It is NOT the energy required to push a reaction in an unfavorable
direction.
Universal features of all cells... - Answer✔️✔️-- take up matter from
their surroundings
- store hereditary information
- use RNA to direct protein synthesis
- all cells use DNA
- all cells replicate their DNA
4
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