BIO 168 UPDATED EXAMS PAPER QUESTIONS
AND ANSWERS SURE A+
✔✔A substance moves by facilitated diffusion into a cell. What is required for its
transport?
A) a pump
B) both ATP and a protein channel
C) ATP only
D) either a protein channel or a carrier protein - ✔✔D) either a protein channel or a
carrier protein
✔✔A white blood cell engulfs a bacterium through a process called:
A) endocytosis
B) facilitated diffusion
C) primary active transport
D) exocytosis - ✔✔A) endocytosis
✔✔Active transport processes:
A) move solutes from a higher concentration to a lower concentration
B) move solutes with or along their concentration gradients
C) require cells to expend energy (ATP)
,D) move solutes through the phospholipid bilayer without the use of integral proteins -
✔✔C) require cells to expend energy (ATP)
✔✔Cell division occurs during:
A) G1 phase
B) S phase
C) G2 phase
D) M phase - ✔✔D) M phase
✔✔Cytosol is also known as:
A) blood plasma
B) intracellular fluid (ICF)
C) extracellular fluid (ECF)
D) the cytoskeleton - ✔✔B) intracellular fluid (ICF)
✔✔How many homologous chromosome pairs are present in most human cells?
A) 18
B) 23
C) 46
D) 4 - ✔✔B) 23
✔✔Most of a cell's DNA is located in its:
A) Golgi apparatus
B) ribosomes
C) lysosomes
D) nucleus - ✔✔D) nucleus
✔✔Resting membrane potential is due to unequal concentrations of:
A) phospholipids and proteins
B) water molecules
C) ions
D) acids and bases - ✔✔C) ions
✔✔Simple diffusion requires:
A) a concentration gradient
B) protein channels
C) carrier proteins
D) the use of energy - ✔✔A) a concentration gradient
✔✔The stage of the cell cycle in which the cell grows and prepares for cell division is
called:
A) interphase
B) cytokinesis
C) metaphase
, D) mitosis - ✔✔A) interphase
✔✔Through the microscope, you see cells swimming. Each cell has a long tail that
moves in a whip-like manner. What type of cellular extension have you observed?
A) flagellum
B) cilium
C) centriole
D) microvillus - ✔✔A) flagellum
✔✔Transcribe mRNA from this strand of DNA.
TACGGTAGT
A) A T G C C A T C A
B) U T G C C U T G U
C) U A G C C U A C U
D) A U G C C A U C A - ✔✔D) A U G C C A U C A
✔✔What are the two steps of protein synthesis that produce a protein from a gene?
A) replication and translation
B) transcription and translation
C) mitosis and cytokinesis
D) replication and transcription - ✔✔B) transcription and translation
✔✔What is NOT one of the three main parts of a cell?
A) plasma membrane
B) nucleus
C) cytoplasm
D) extracellular fluid - ✔✔D) extracellular fluid
✔✔What is transported across a membrane during osmosis?
A) salts
B) water
C) sugars
D) solutes - ✔✔B) water
✔✔Where does protein synthesis occur?
A) ribosomes
B) lysosomes
C) peroxisomes
D) mitochondria - ✔✔A) ribosomes
✔✔Where does transcription of DNA into RNA occur?
A) nucleus
B) Golgi apparatus
C) peroxisome
AND ANSWERS SURE A+
✔✔A substance moves by facilitated diffusion into a cell. What is required for its
transport?
A) a pump
B) both ATP and a protein channel
C) ATP only
D) either a protein channel or a carrier protein - ✔✔D) either a protein channel or a
carrier protein
✔✔A white blood cell engulfs a bacterium through a process called:
A) endocytosis
B) facilitated diffusion
C) primary active transport
D) exocytosis - ✔✔A) endocytosis
✔✔Active transport processes:
A) move solutes from a higher concentration to a lower concentration
B) move solutes with or along their concentration gradients
C) require cells to expend energy (ATP)
,D) move solutes through the phospholipid bilayer without the use of integral proteins -
✔✔C) require cells to expend energy (ATP)
✔✔Cell division occurs during:
A) G1 phase
B) S phase
C) G2 phase
D) M phase - ✔✔D) M phase
✔✔Cytosol is also known as:
A) blood plasma
B) intracellular fluid (ICF)
C) extracellular fluid (ECF)
D) the cytoskeleton - ✔✔B) intracellular fluid (ICF)
✔✔How many homologous chromosome pairs are present in most human cells?
A) 18
B) 23
C) 46
D) 4 - ✔✔B) 23
✔✔Most of a cell's DNA is located in its:
A) Golgi apparatus
B) ribosomes
C) lysosomes
D) nucleus - ✔✔D) nucleus
✔✔Resting membrane potential is due to unequal concentrations of:
A) phospholipids and proteins
B) water molecules
C) ions
D) acids and bases - ✔✔C) ions
✔✔Simple diffusion requires:
A) a concentration gradient
B) protein channels
C) carrier proteins
D) the use of energy - ✔✔A) a concentration gradient
✔✔The stage of the cell cycle in which the cell grows and prepares for cell division is
called:
A) interphase
B) cytokinesis
C) metaphase
, D) mitosis - ✔✔A) interphase
✔✔Through the microscope, you see cells swimming. Each cell has a long tail that
moves in a whip-like manner. What type of cellular extension have you observed?
A) flagellum
B) cilium
C) centriole
D) microvillus - ✔✔A) flagellum
✔✔Transcribe mRNA from this strand of DNA.
TACGGTAGT
A) A T G C C A T C A
B) U T G C C U T G U
C) U A G C C U A C U
D) A U G C C A U C A - ✔✔D) A U G C C A U C A
✔✔What are the two steps of protein synthesis that produce a protein from a gene?
A) replication and translation
B) transcription and translation
C) mitosis and cytokinesis
D) replication and transcription - ✔✔B) transcription and translation
✔✔What is NOT one of the three main parts of a cell?
A) plasma membrane
B) nucleus
C) cytoplasm
D) extracellular fluid - ✔✔D) extracellular fluid
✔✔What is transported across a membrane during osmosis?
A) salts
B) water
C) sugars
D) solutes - ✔✔B) water
✔✔Where does protein synthesis occur?
A) ribosomes
B) lysosomes
C) peroxisomes
D) mitochondria - ✔✔A) ribosomes
✔✔Where does transcription of DNA into RNA occur?
A) nucleus
B) Golgi apparatus
C) peroxisome
