Describe the difference between the cytoplasm and the cytosol.
What will be an ideal response?
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Question 2) The following is a particular sequence of base triplet on a DNA molecule: ATG. What is the corresponding codon for the mRNA?
a) TAC
b) GUA
c) GTA
d) CTA
e) UAC
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Question 3) What compound would a cell lacking ribosomes be unable to make?
a) lipids
b) nucleotides
c) proteins
d) carbohydrates
e) phospholipids
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Question 4) The following is a particular sequence of codon on mRNA: ACU. What is the corresponding anti-codon for the tRNA?
a) UGA
b) UCA
c) TGA
d) TCA
e) AUC
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Question 5) This is the site of synthesis of rRNA and assembly of rRNA and proteins into ribosomal subunits.
a) nucleus
b) nucleolus
c) smooth endoplasmic reticulum
d) rough endoplasmic reticulum
e) Golgi complex
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Question 6) Which disease below is an inherited condition characterized by the absence of a single lysosomal enzyme called Hex A?
a) Tay-Sachs disease
b) leukemia
c) progeria
d) lymphoma
e) Werner syndrome
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Question 7) Which of the following transport processes moves substances through cells using endocytosis on one side of a cell and exocytosis on the opposite side of the cell?
a) phagocytosis
b) secondary active transport
c) transcytosis
d) osmosis
e) simple diffusion
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Question 8) Which organelle is responsible for synthesis of steroids, phospholipids and functions as a reservoir for Ca2+?
a) mitochondrion
b) secretory vesicle
c) smooth endoplasmic reticulum
d) rough endoplasmic reticulum
e) lysosome
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Question 9) What other organelle besides the nucleus contain DNA?
a) Golgi complex
b) lysosome
c) ribosomes
d) mitochondrion
e) centrosome
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Question 10) Which of the following is the correct sequence of events in bulk-phase endocytosis shown in the figure?
a) plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > vesicle formed pinches off into cytosol > digestion by enzymes > solutes released
b) solutes released > plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > vesicle formed pinches off into cytosol > digestion by enzymes
c) vesicle formed pinches off into cytosol > solutes released > plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > digestion by enzymes
d) vesicle formed pinches off into cytosol > plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > digestion by enzymes > solutes released
e) plasma membrane forms vesicle around extracellular droplets > vesicle formed pinches off into cytosol > fusion of lysosome and vesicle > digestion by enzymes > solutes released
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