| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.43 |
| Score | 0% | 69% |
Which of the following is the narrowest classification of life?
genus |
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domain |
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species |
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family |
The narrowest classification of life, species, contains organisms that are so similar that they can only reproduce with others of the same species.
Which of blood component fights infection?
red blood cells |
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platelets |
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white blood cells |
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plasma |
Blood is created in bone marrow and is made up of cells suspended in liquid plasma. Red blood cells carry oxygen, white blood cells fight infection, and platelets are cell fragments that allow blood to clot.
The Rh factor antigen in blood determines:
universal donor status |
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universal recipient status |
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postive or negative |
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blood type |
Blood is categorized into four different types (A, B, AB, and O) based on the type of antigens found on the outside of the red blood cells. Additionally, each type can be negative or positive based on whether or not the cells have an antigen called the Rh factor.
In a eukaryotic cell, which organelles deal with proteins?
Golgi apparatus |
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ribosomes |
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all of these deal with proteins |
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endoplasmic reticulum |
The nucleus of a eukaryotic cell contains the genetic material of the cell and is surrounded by cytoplasm which contains many organelles. Ribosomes produce proteins, endoplasmic reticulum helps synthesize proteins and fats, and Golgi apparatus prepares proteins for use.
In cell biology, where does DNA replication take place?
Golgi apparatus |
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cytoplasm |
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nucleus |
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mitochondria |
The cell nucleus contains the genetic material of the cell and is where DNA replication takes place.