Cell Specialization

2.

What is the major difference between prokaryotic and eukaryotic cells?

Prokaryotic cells have no gentic material; eukaryotic cells do
Prokaryotic cells engage in photosntheisis; eukaryotic cells don't
Prokaryotic cells have no membranes around their nuclear material; enkaryotic cells do
Prokaryotic cells can move on their own; eukaryotic cells can't

Correct Answer

A. Prokaryotic cells have no membranes around their nuclear material; enkaryotic cells do

Explanation

The major difference between prokaryotic and eukaryotic cells is that prokaryotic cells lack membranes around their nuclear material, while eukaryotic cells have these membranes. This difference is significant because the presence of nuclear membranes in eukaryotic cells allows for compartmentalization and organization of genetic material, which is essential for regulating gene expression and carrying out complex cellular processes. In contrast, prokaryotic cells have their genetic material floating freely in the cytoplasm, which limits their ability to regulate gene expression and perform specialized functions.

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3.

What is a major difference between plant and animal cells?

Plant cells are always at least 10 times bigger than animal cells
Plant cells are always green, while animal cells are always red
Plant cells are surrounded by cell walls; animal cells aren't
Plant cells are made of wood; animal cells are made of flesh

Correct Answer

A. Plant cells are surrounded by cell walls; animal cells aren't

Explanation

Plant cells are surrounded by cell walls, which provide structural support and protection for the cell. Animal cells, on the other hand, do not have cell walls and rely on other structures such as the cell membrane for support and protection. This key difference is due to the presence or absence of a cell wall, making it a major distinction between plant and animal cells.

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4.

What can you find inside a eukaryotic cell's nucleus?

Genetic material
Cytoplasm
Endoplasmic reticulum
Mitochondira

Correct Answer

A. Genetic material

Explanation

The correct answer is genetic material. The nucleus of a eukaryotic cell contains the genetic material, which is DNA. This DNA carries the instructions for the cell's functions and is responsible for determining the characteristics and traits of an organism. The genetic material is organized into structures called chromosomes, which are found inside the nucleus. The other options listed, cytoplasm, endoplasmic reticulum, and mitochondria, are not typically found inside the nucleus but are located in other parts of the cell.

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5.

Prokaryotic cells are all:

Single-celled organisms
Multi-celled organisms
Photosynthetic organisms
Large organisms

Correct Answer

A. Single-celled organisms

Explanation

Prokaryotic cells are single-celled organisms because they lack a nucleus and other membrane-bound organelles. They are typically smaller and simpler in structure compared to eukaryotic cells. Prokaryotes, such as bacteria and archaea, are capable of carrying out all necessary functions for survival within a single cell. They reproduce through binary fission, where one cell divides into two identical daughter cells. Therefore, the correct answer is single-celled organisms.

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6.

Which of these statements is true of plant cells?

They have no cell membranes
They can make their own nutrients
They work independently of one another
They are prokaryotic

Correct Answer

A. They can make their own nutrients

Explanation

Plant cells have the ability to produce their own nutrients through the process of photosynthesis. This is a unique characteristic of plant cells, as they contain specialized structures called chloroplasts that contain chlorophyll, which enables them to convert sunlight, water, and carbon dioxide into glucose and oxygen. This process allows plants to synthesize their own food and sustain themselves without relying on external sources for nutrients.

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7.

What would happen is a plant cell didn'thave chloroplasts?

It wouldn't be able to reproduce
It woundn't be able to move
It wouldn't be able to make its own nutrients
It wouldn't be able to transport nutrients

Correct Answer

A. It wouldn't be able to make its own nutrients

Explanation

If a plant cell didn't have chloroplasts, it wouldn't be able to make its own nutrients through photosynthesis. Chloroplasts are responsible for capturing sunlight and converting it into energy through the process of photosynthesis. Without chloroplasts, the plant cell wouldn't be able to produce glucose and other organic molecules that it needs for growth and survival. Instead, it would have to rely on obtaining nutrients from its surroundings, which may not be sufficient for its needs.

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8.

What is a membrane?

Another term for a cell's nucleus
A sort of "skin" that encloses something
A type of genetic material
A single-celled organism

Correct Answer

A. A sort of "skin" that encloses something

Explanation

A membrane is a sort of "skin" that encloses something. In biology, a membrane refers to a thin layer of tissue or material that acts as a boundary or barrier, separating the inside of a cell or an organ from its external environment. It controls the movement of substances in and out of the cell or organ, allowing for selective transport of molecules and maintaining the internal environment necessary for proper functioning.

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9.

Why do red blood cells need to be so tiny?

So they can move through narrow blood narrow blood vessels
So they can clump together
So they can't be detected by viruses
So they can carry carbon dioxide to our body's tissues

Correct Answer

A. So they can move through narrow blood narrow blood vessels

Explanation

Red blood cells need to be tiny in order to move through narrow blood vessels. Larger cells would not be able to navigate through the small capillaries and deliver oxygen to the body's tissues efficiently. The small size of red blood cells allows them to flow smoothly through the blood vessels, ensuring proper circulation and oxygenation throughout the body.

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Cell Specialization

Which term best describes the way cells work inside your body?

Quiz Preview

What is the major difference between prokaryotic and eukaryotic cells?

What is a major difference between plant and animal cells?

What can you find inside a eukaryotic cell's nucleus?

Prokaryotic cells are all:

Which of these statements is true of plant cells?

What would happen is a plant cell didn'thave chloroplasts?

What is a membrane?

Why do red blood cells need to be so tiny?