Cell Biology Quiz

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Questions and Answers

Which component is not part of an animal cell?

Mitochondria

Cell wall (correct)

Cytosol

Nucleus

What process occurs in the mitochondria of a cell?

Excretion

Cell division

Photosynthesis

Cellular respiration (correct)

What term is used for the organism that becomes infected by a disease?

Pathogen

Organism

Cell

Host (correct)

Why is it important for a specimen to be thin when viewed under a light microscope?

To allow light to pass through easily Signup and view all the answers

What are the two main types of microscopes used in biology?

Light and electron microscopes Signup and view all the answers

What is the primary function of ribosomes within a cell?

Protein synthesis Signup and view all the answers

In multicellular organisms, why are cells preferred over a single large cell?

It facilitates specialized functions Signup and view all the answers

Which structure is found in plant cells but not in animal cells?

Chloroplasts Signup and view all the answers

Why did James observe many chloroplasts in each cell while Emily could not identify any?

Variations in sample preparation could have affected visibility. Signup and view all the answers

Is it possible for a plant cell to survive without a nucleus?

No, because the nucleus is essential for regulating vital cellular functions. Signup and view all the answers

What type of microscope is most likely used to create detailed images of cell structures?

Electron microscope, due to its ability to resolve small cellular components. Signup and view all the answers

Why should doctors avoid prescribing antibiotics for viral infections?

Both A and C are correct. Signup and view all the answers

What is an ethical advantage of using stem cells for drug testing over traditional methods?

It eliminates the risk of using animals or humans for preliminary tests. Signup and view all the answers

What was Howard Florey's perspective on the patenting of penicillin?

Patenting would limit access to a life-saving medication. Signup and view all the answers

In the context of similes, what is their primary function in creative writing?

To enhance emotional appeal and create vivid imagery. Signup and view all the answers

What role does a nucleus play in a plant cell's survival?

It regulates cell activities and houses genetic material. Signup and view all the answers

Study Notes

Multiple Choice Questions

Animal cells do not have cell walls.
Cellular respiration occurs in mitochondria.
The organism infected with a disease is called a host.

Short Answer Questions

The first person to describe a cell was Robert Hooke.
Stains enhance specimen visibility under a microscope.
The cell theory states cells are the fundamental units of life, all living things are composed of cells, and all cells come from pre-existing cells.
Two types of microscopes are light microscopes and electron microscopes.
Specimens need to be thin for light microscopes to view them because light can only pass through a thin enough specimen.
Mitochondria are responsible for energy production in cells. Chloroplasts are involved in photosynthesis, and a key difference from mitochondria is that chloroplasts contain chlorophyll.
Fungal cells have chitin in their cell walls and bacteria have peptidoglycan while fungal cells have chitin in their cell walls and bacteria have peptidoglycan in their cell walls.
Nucleus: the control center of a cell; Mitochondrion: the power house that produces energy; Chloroplast: organelle for photosynthesis; Binary fission: a type of asexual reproduction; Pathogen: a disease-causing agent.
Ribosomes synthesize proteins in cells.
Unicellular organisms are made up of one cell, examples include bacteria and amoebae while multicellular organisms are made up of multiple cells, examples include animals and plants.

Apply and Analyze Questions

Antibiotics cannot treat viral infections like Covid-19 because they target bacterial cells, not viral cells.
Substances entering a cell might include nutrients and some exiting might include waste products.
Unicellular organisms are small because their internal surface area is maximized. Multicellular organisms have different structures for efficient exchange of materials.
Doctors do not prescribe antibiotics for colds or flu as these are usually viral infections.
Animal cells have mitochondria for energy production. Plant cells also have chloroplasts for photosynthesis in addition to mitochondria.
Light microscopes require thin cells or sections for light to pass through, enabling visualization.
Magnification is calculated by multiplying the objective lens and eyepiece lens powers. For instance a cell viewed with a "x40" objective lens and a "x10” eyepiece lens results in x400 magnification.

Evaluate Questions

James' observation of many chloroplasts was due to the specimen being from the leafy part of an onion, where chloroplasts reside.
Plant cells require nuclei for vital functions and survival; therefore no plant cells can survive without them.
A short story about a virus from the perspective of a cell is not provided.
The microscope most likely for viewing images in "Figure 1" needs to be identified.

Antibiotics are effective against bacteria, but overuse promotes antibiotic resistance, hindering their effectiveness.
Stem cell testing is often more ethical than animal or human testing because it minimizes harm to living creatures.
Arguments for and against patenting penicillin (from various viewpoints) are not detailed.

Critical and Creative Thinking Questions

Similes compare objects based on common characteristics.
Cells are comparable to building blocks, nuclei to control centers, and mitochondria to power stations.
Microscope advancements have greatly improved our understanding of cell functions and structures.

Research Questions

A single research topic with associated questions is not described at this stage.

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Description

Test your knowledge on cell biology concepts, including the structure and function of animal and plant cells, cellular respiration, and microscopy techniques. This quiz covers essential topics such as the cell theory and differences between cell types. Perfect for biology students and enthusiasts!