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WorksheetsExam Review Two!
Total questions: 19
Worksheet time: 10mins
Which method of membrane transport requires energy? Select all that apply.
Simple diffusion
Facilitated diffusion
Primary active transport
Secondary active transport
Which of the following is FALSE about secondary active transport?
I requires ATP to move transporter proteins
It moves solutes against their gradients
Its source of energy is the electrochemical gradient
It moves two solutes across the membrane
True or false: Primary active transport uses ATP.
True
False
No idea
Which replication protein relieves tension by breaking phosphodiester bonds?
Helicase
Topoisomerase
Ligase
DNA Polymerase III
Which replication protein breaks hydrogen bonds?
Helicase
Topoisomerase
Primase
DNA Polymerase I
Why is the primer replaced in DNA replication?
It is too short
It is made of ribonucleotides
It is made of uracil
It does not need to be replaced
Which of the following is TRUE of the leading strand?
It contains Okasaki fragments
It needs ligase
It is synthesized towards the replication fork
It is synthesized in the 3' to 5' direction
When are the sex chromosomes considered a homologous pair?
In males only
In females only
In both males and females
They are never a homologous pair
What are the limitations of DNA Polymerase III? Select all that apply
It can only synthesize in the 5' to 3' direction
It cannot open the DNA double helix
It can only add a few nucleotides at a time
It cannot start a new strand on its own
In RNA, what is adenine paired with?
Thymine
Guanine
Cytosine
Uracil
Another adenine
Which of the following is true? Select all that apply.
Ribose has an OH group on the 2' carbon
Ribose has a hydrogen on the 2' carbon
Deoxyribose has an OH group on the 2' carbon
Deoxyribose has a hydrogen on the 2' carbon
In what ways are DNA and RNA different? Select all that apply.
They have different sugars
They have different nitrogenous bases
One is double-stranded, one is single-stranded
They have different phosphate groups
What type of bond links nucleotides together?
Hydrogen
Ionic
Phosphodiester
Peptide
What type of bond holds the double helix together? (Between nitrogenous bases)
Hydrogen
Ionic
Phosphodiester
Peptide
DNA coils around which protein to form a chromosome?
Helicase
Histones
Singe-stranded binding proteins
Peripheral proteins
In which stage of mitosis is a cell functioning and growing normally?
G1
S
G2
M (mitosis)
Which stages of the cell cycle are included in interphase? Select all that apply.
G1
S
G2
M
What are sex cells (sperm and egg) called?
Autosomes
Sex chromosomes
Somatic cells
Gametes
In which phase of mitosis do the sister chromatids separate?
Prophase
Metaphase
Anaphase
Telophase
