Question

What is the basic unit of structure and function in all living things?

Question 1 options:

atoms


cells


organs


tissues

Question 2 (1 point)
Which characteristic of life involves organisms maintaining a balanced internal environment?

Question 2 options:

Reproduction


Complex Organization


Response to Stimulus


Homeostasis

Question 3 (1 point)
What are two steps of the scientific method that must occur before you generate a hypothesis?

Select 2 correct answer(s)
Question 3 options:

Design an Experiment


Take Observations


Generate a Question


Share your Results

Question 4 (1 point)
A scientific theory is not really backed by evidence, it is more of an educated guess.

Question 4 options:
True
False
Question 5 (1 point)
Which of the following terms refers to all of the chemical reactions that build up and break down materials within a living organism?

Question 5 options:

Response to Stimulus


Development


Homeostasis


Metabolism

Question 6 (1 point)
A drawback of scientists performing natural studies is that it is difficult to control factors that may be affecting the variables they are studying.

Question 6 options:
True
False
Question 7 (1 point)
Simple life forms like bacteria have simple chemistry.

Question 7 options:
True
False
Question 8 (1 point)
Which of the following represents the "largest" level of biological organization?

Question 8 options:

tissue


population


cell


ecosystem

Question 9 (1 point)
Suppose you are performing an experiment that is studying how different amounts of water given to 3 separate plants impacts how tall each plant can grow. The amount of water given to the plants can be described as:

Question 9 options:

a controlled variable


the dependent variable


the independent variable

Question 10 (1 point)
Question 10 options:
The characteristic of life where organisms are able to give rise to offspring is known as
Question 11 (1 point)
Which of the following can be classified as a living thing?

Select 3 correct answer(s)
Question 11 options:

shark


clouds


a single skin cell


bacteria

Question 12 (1 point)
Which of the following is an example of homeostasis?

Select 2 correct answer(s)
Question 12 options:

A bird fluffs its feather to retain more heat on a cold day.


Bacteria moving towards sugar.


An amoeba dividing into 2 identical daughter cells.


A person sweats to cool down while sitting out in the sun.

Quiz 2: Cell Theory and Basics of Chemistry
Question 13 (1 point)
All cells come from pre-existing cells is one of the 3 major tenants of the Cell Theory

Question 13 options:
True
False
Question 14 (1 point)
Why do cells need to be small in size?

Question 14 options:

Cells need to transport lots of materials inside and out, and a smaller cell size helps with this


Smaller cells have a surface to volume ratio that allows them to be more efficient at transporting materials


Large cells utilize too much energy and nutrients and are therefore not as efficient


All of the above

Question 15 (1 point)
Which of the following scientist is properly matched up with their contribution to the modern cell theory?

Question 15 options:

Anton von Leeuwenheok --> discovered cells dividing in the 1800s


Robert Hooke --> invented the first microscope and viewed cork cells with it


Rudolf Virchow --> viewed "animicules" under the microscope, found from his own dental scrapings


None of the above

Question 16 (1 point)
An element is a pure substance that cannot be broken down into different types of substances.

Question 16 options:
True
False
Question 17 (1 point)
Which of the following chemical bond type is usually performed between two non metals, and involves the sharing of electrons between atoms?

Question 17 options:

Ionic bonding


Covalent bonding


Hydrogen bonding

Question 18 (1 point)
Which of the following is an example of an organic compound?

Question 18 options:

copper


water


glucose


oxygen

Question 19 (1 point)
Nucleic Acids are extremely important molecules utilized for long term energy storage, and as important components of cell membranes.

Question 19 options:
True
False
Question 20 (1 point)
Which of the following is a similarity between a mixture and a compound?

Question 20 options:

They need to be separated using a chemical reaction


They are made up of different types of atoms


They both are created by chemical reactions


They both have fixed proportions of their components (example: atoms are always found in the exact same ratios)

Question 21 (1 point)
Which of the following could be the chemical formula for a carbohydrate monomer?

Question 21 options:

C2H4O2


C3H5O3


H2O


CO2

Question 22 (1 point)
Which of the following organic polymers is used primarily for short term energy and is often used as a structural component (especially in plants)

Question 22 options:

Proteins


Lipids


Carbohydrates


Nucleic Acids

Question 23 (1 point)
Building a protein involves monomers called amino acids linking together through special bonds known as ionic bonds.

Question 23 options:
True
False
Question 24 (1 point)
Using your knowledge of prefixes that we have learned this Unit, which of the following carbohydrates do you think has the largest molecule size?

Question 24 options:

Glucose (a monosaccaride)


Cellulose (a polysaccaride)


Lactose (a disaccaride)

Question 25 (1 point)
Which of the following is a monomer for nucleic acids?

Question 25 options:

glucose


amino acids


nucleotides


glycerol

Answer 1

Here are the answers for your questions:

**Question 1**: What is the basic unit of structure and function in all living things?
- **Answer**: cells

**Question 2**: Which characteristic of life involves organisms maintaining a balanced internal environment?
- **Answer**: Homeostasis

**Question 3**: What are two steps of the scientific method that must occur before you generate a hypothesis?
- **Answer**: Take Observations, Generate a Question

**Question 4**: A scientific theory is not really backed by evidence, it is more of an educated guess.
- **Answer**: False

**Question 5**: Which of the following terms refers to all of the chemical reactions that build up and break down materials within a living organism?
- **Answer**: Metabolism

**Question 6**: A drawback of scientists performing natural studies is that it is difficult to control factors that may be affecting the variables they are studying.
- **Answer**: True

**Question 7**: Simple life forms like bacteria have simple chemistry.
- **Answer**: False

**Question 8**: Which of the following represents the "largest" level of biological organization?
- **Answer**: ecosystem

**Question 9**: The amount of water given to the plants can be described as:
- **Answer**: the independent variable

**Question 10**: The characteristic of life where organisms are able to give rise to offspring is known as
- **[This question seems incomplete.]** Based on context, likely answer could be "Reproduction."

**Question 11**: Which of the following can be classified as a living thing?
- **Answer (Select 3)**: shark, a single skin cell, bacteria

**Question 12**: Which of the following is an example of homeostasis?
- **Answer (Select 2)**: A bird fluffs its feather to retain more heat on a cold day., A person sweats to cool down while sitting out in the sun.

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**Quiz 2: Cell Theory and Basics of Chemistry**

**Question 13**: All cells come from pre-existing cells is one of the 3 major tenants of the Cell Theory.
- **Answer**: True

**Question 14**: Why do cells need to be small in size?
- **Answer**: All of the above

**Question 15**: Which of the following scientist is properly matched up with their contribution to the modern cell theory?
- **Answer**: Robert Hooke --> invented the first microscope and viewed cork cells with it

**Question 16**: An element is a pure substance that cannot be broken down into different types of substances.
- **Answer**: True

**Question 17**: Which of the following chemical bond type is usually performed between two non metals, and involves the sharing of electrons between atoms?
- **Answer**: Covalent bonding

**Question 18**: Which of the following is an example of an organic compound?
- **Answer**: glucose

**Question 19**: Nucleic Acids are extremely important molecules utilized for long term energy storage, and as important components of cell membranes.
- **Answer**: False

**Question 20**: Which of the following is a similarity between a mixture and a compound?
- **Answer**: They are made up of different types of atoms

**Question 21**: Which of the following could be the chemical formula for a carbohydrate monomer?
- **Answer**: C2H4O2

**Question 22**: Which of the following organic polymers is used primarily for short term energy and is often used as a structural component (especially in plants)?
- **Answer**: Carbohydrates

**Question 23**: Building a protein involves monomers called amino acids linking together through special bonds known as ionic bonds.
- **Answer**: False

**Question 24**: Using your knowledge of prefixes that we have learned this Unit, which of the following carbohydrates do you think has the largest molecule size?
- **Answer**: Cellulose (a polysaccharide)

**Question 25**: Which of the following is a monomer for nucleic acids?
- **Answer**: nucleotides

Feel free to ask if you need any further clarification or assistance!