Mastering Biology Midterm 1 |61 Questions| With
Correct Answers.
1). The organelle that contains most of a cell's dna.
Ans: nucleus
2). Which of these organelles carries out cellular respiration?
Ans: mitochondrion
3). Which of these is the double membrane that encloses the nucleus?
Ans: the nuclear envelope
4). The _____ is composed of dna and protein.
Ans: chromatin
5). Ribosomal subunits are manufactured by the _____.
Ans: nucleolus
6). _____ are the sites of protein synthesis.
Ans: Ribosomes
7). Which of these manufactures cellular membranes by adding membrane proteins and
phospholipids to its own membrane?
Ans: rough endoplasmic reticulum
8). The _____ is a selective barrier, regulating the passage of material into and out of the cell.
Ans: plasma membrane
Where is calcium stored?
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, 9).
Ans: smooth endoplasmic reticulum
10). Which of these are hollow rods that shape and support the cell and aid in organelle
movement?
Ans: microtubules
11). _____ is/are identical in structure to centrioles.
Ans: Basal bodies
12). In plant cells, why are toxins like nicotine, cocaine, and caffeine stored in vacuoles instead
of the cytosol?
Ans: Toxins in vacuoles are sequestered from the rest of the cell, where they could do
harm.
Vacuoles serve as storage depots that keep noxious compounds like toxins separate from
the rest of the cell. If released into the cytosol, toxins would poison the cell.
13). Which organelle often takes up much of the volume of a plant cell?
Ans: vacuole
14). Suppose a cell has the following molecules and structures: enzymes, dna, ribosomes,
plasma membrane, and mitochondria. it could be a cell from _____.
Ans: nearly any eukaryotic organism
15). Where are proteins produced other than on ribosomes free in the cytosol or ribosomes
attached to the er?
Ans: in mitochondria
16). Suppose a young boy is always tired and fatigued, suffering from a metabolic disease.
which of the following organelles is most likely involved in this disease?
Ans: mitochondria
17). Which statements are true for chloroplasts?
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Correct Answers.
1). The organelle that contains most of a cell's dna.
Ans: nucleus
2). Which of these organelles carries out cellular respiration?
Ans: mitochondrion
3). Which of these is the double membrane that encloses the nucleus?
Ans: the nuclear envelope
4). The _____ is composed of dna and protein.
Ans: chromatin
5). Ribosomal subunits are manufactured by the _____.
Ans: nucleolus
6). _____ are the sites of protein synthesis.
Ans: Ribosomes
7). Which of these manufactures cellular membranes by adding membrane proteins and
phospholipids to its own membrane?
Ans: rough endoplasmic reticulum
8). The _____ is a selective barrier, regulating the passage of material into and out of the cell.
Ans: plasma membrane
Where is calcium stored?
PaperStoc.com Page 1 of 9
, 9).
Ans: smooth endoplasmic reticulum
10). Which of these are hollow rods that shape and support the cell and aid in organelle
movement?
Ans: microtubules
11). _____ is/are identical in structure to centrioles.
Ans: Basal bodies
12). In plant cells, why are toxins like nicotine, cocaine, and caffeine stored in vacuoles instead
of the cytosol?
Ans: Toxins in vacuoles are sequestered from the rest of the cell, where they could do
harm.
Vacuoles serve as storage depots that keep noxious compounds like toxins separate from
the rest of the cell. If released into the cytosol, toxins would poison the cell.
13). Which organelle often takes up much of the volume of a plant cell?
Ans: vacuole
14). Suppose a cell has the following molecules and structures: enzymes, dna, ribosomes,
plasma membrane, and mitochondria. it could be a cell from _____.
Ans: nearly any eukaryotic organism
15). Where are proteins produced other than on ribosomes free in the cytosol or ribosomes
attached to the er?
Ans: in mitochondria
16). Suppose a young boy is always tired and fatigued, suffering from a metabolic disease.
which of the following organelles is most likely involved in this disease?
Ans: mitochondria
17). Which statements are true for chloroplasts?
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