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ANP 1105 University of Ottawa Midterm Exam 1 Fall 2022
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ANP 1105 University of Ottawa MidtermExam 1 Fall 2022
Ribosome Ans- Which of the following is NOT one of the three major components of a
typical eukaryotic cell?
a) Cytoplasm
b) Ribosome
c) Plasma Membrane
d) Nucleus
Lysosome Ans- Which of the following acts as the digestive system of the cell, breaking
down materials?
a) Ribosome
b) Nucleus
c) Lysosome
d) Endoplasmic Reticulum
In the DNA within the cell's nucleus Ans- Where in a typical eukaryote cell would you
expect to find genes?
a) In chromosomes within the cytosol
b) In the DNA within the cell's nucleus
c) In the nucleolus within the nucleus
d) In the chromatin within the cell's cytoplasm?
A Ans- Which set of membrane proteins in the figure depicts the transport of solute
molecules?
Mitochondrion Ans- The figure is of which organelle?
Enzymes involved in cellular respiration Ans- The folded membranes indicated by B are
the sites of _________.
a) Intracellular digestion
b) Enzymes involved in cellular respiration
c) Phagocytosis
d) Endocytosis
Hydrolytic enzymes (lysosomes) Ans- The membrane-bound compartment indicated by
structure D contains which of the following?
a) nucleic acids
b) ribosomes
c) oxidases and catalases
d) hydrolytic enzymes
,Synthesis of secreted proteins Ans- What major function occurs on the specific
membranes indicated by A?
a) digestion of food particles
b) production of most of the cell's ATP
c) replication of DNA
d) synthesis of secreted proteins
Ribosomes Ans- Which organelle is responsible for synthesizing proteins?
a) Golgi apparatus
b) mitochondria
c) smooth ER
d) ribosomes
They contain powerful enzymes called acid hydrolases Ans- Which of the following is
NOT a characteristic of peroxisomes?
a) they aid in the neutralization of dangerous free radicals
b) they contain powerful enzymes called catalases
c) They contain powerful enzymes called oxidases
d) They contain powerful enzymes called acid hydolases
They are whiplike, motile cellular extensions that occur in large numbers on the
exposed surfaces of certain cells. Ans- Which of the following is characteristic of cilia?
a) They move substances in any direction across cell surfaces.
b) They are used for cellular adhesion.
c) They are whiplike, motile cellular extensions that occur in large numbers on the
exposed surfaces of certain cells.
d) They are substantially longer than flagella, and are most easily seen in human sperm
cells.
True. Lysosomes are large and abundant within phagocytes, the cells that dispose of
invading bacteria and cell debris. Lysosomal enzymes can digest almost all kinds of
biological molecules. They work best in acidic conditions and so are called acid
hydrolases. Ans- Lysosomes perform digestive functions within a cell. T or F
the enzyme functions only in lysosomes and not in the blood Ans- Babies with Tay-
Sachs disease cannot be treated by injecting the missing enzyme into their blood
because_________.
a) the enzyme is a protein and, therefore, is not soluble in the blood
b) the enzyme is a protein that is digested by glycolipids in the blood
c) blood is not capable of delivering substances directly to nerve cells
d) the enzyme functions only in lysosomes and not in the blood
the smooth ER Ans- In certain kinds of muscle cells, calcium ions are stored in
________.
a) the rough ER
, b) the smooth ER
c) the cytoplasm
d) both smooth and rough ER
Motor proteins Ans- What moves cell organelles from one location to another inside a
cell?
a) Microfilaments
b) Intermediate filaments
c) Motor proteins
d) Microtubules
centriole Ans- The electron microscope has revealed that one of the components within
the cell consists of pinwheel array of 9 triplets of microtubules arranged to form a hollow
tube. This structure is a ________.
a) centriole
b) chromosome
c) centrosome
d) ribosome
melanin Ans- Which of these is an inclusion, not an organelle?
a) microtubule
b) cilia
c) lysosome
d) melanin
protein synthesis in conjunction with ribosomes Ans- Which of the following is NOT a
function of the smooth endoplasmic reticulum?
a) lipid metabolism and cholesterol synthesis
b) protein synthesis in conjunction with ribosomes
c) steroid-based hormone synthesis
d) breakdown of stored glycogen to form free glucose
contain some of the DNA and RNA code necessary for their own function Ans-
Mitochondria ________.
a) synthesize proteins for use outside the cell
b) are single-membrane structures involved in the breakdown of ATP
c) are always the same shape
d) contain some of the DNA and RNA code necessary for their own function
false; integral cell membrane proteins are also synthesized this way Ans- Ribosomes,
endoplasmic reticulum, and the Golgi apparatus functionally act in sequence to
synthesize and modify proteins for secretory use (export) only, never for use by the cell.
This statement is ________.
a) false; lipids, not proteins, are synthesized this way
b) false; proteins thus manufactured are for use inside the cell only
c) false; integral cell membrane proteins are also synthesized this way
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