What are chemical bonds?

Forces that hold atoms together

What does it mean when an atom is neutral?

It has equal numbers of protons and electrons

What are the components of an atom?

Protons, neutrons, and electrons

What are the monomers and polymers of carbohydrates?

Monomers: monosaccharides, Polymers: polysaccharides

How does the H+ ion concentration affect the pH of a solution?

Higher concentration means lower pH

Describe the characteristics of the following polysaccharides: glycogen, cellulose, starch

Glycogen: energy storage, Cellulose: structural, Starch: energy storage

What is sampling error and how do scientists avoid this when developing an experiment?

Error due to a non-representative sample

What is the pH of a solution?

A measure of acidity or basicity

What is the differences in structure and function of saturated and unsaturated fats?

Saturated fats have no double bonds, Unsaturated fats have double bonds

What is an independent variable?

The variable that is manipulated, the "cause"

A pure substance made of one type of atom

The smallest unit of an element

What is a Control Group?

A group that is not exposed to the treatment

What is an Experimental Group?

A group that is exposed to the treatment

What are the charges of a proton, neutron, and electron?

Proton: positive, Neutron: neutral, Electron: negative

What are the general properties of fatty acids?

Saturated: solid at room temperature, Unsaturated: liquid

What is a dependent variable?

The variable that is measured, the "effect"

What is critical thinking?

Analyzing and evaluating information

What does it mean when an atom is positively or negatively charged?

It has unequal numbers of protons and electrons

What are some monosaccharide and polysaccharide examples?

Monosaccharides: glucose, Polysaccharides: starch

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Midterm Bio Chap 1

24 termsStudBud Administration1 play

Test your knowledge on basic concepts in chemistry and biology, from atoms and elements to chemical bonds and biological macromolecules.

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Questions 24

Answers

1
What are chemical bonds?
Physical connections between compounds
Interactions between molecules
Reactions between elements
Forces that hold atoms together
2
What would cause the pH of a solution to become more acidic or basic?
Changing the temperature
Diluting the solution
Increasing the volume
Adding acids or bases
3
What does it mean when an atom is neutral?
It has more electrons than protons
It has more protons than electrons
It has no neutrons
It has equal numbers of protons and electrons
4
What are the components of an atom?
Molecules and compounds
Protons, neutrons, and electrons
Elements and compounds
Ions and isotopes
5
What are the monomers and polymers of carbohydrates?
Monomers: monosaccharides, Polymers: polysaccharides
Monomers: fatty acids, Polymers: lipids
Monomers: amino acids, Polymers: proteins
Monomers: polysaccharides, Polymers: monosaccharides
6
What are the pH ranges for an acidic, basic or neutral solution?
Acidic: 7, Neutral: <7, Basic: >7
Acidic: <7, Neutral: 7, Basic: >7
Acidic: <7, Neutral: >7, Basic: 7
Acidic: >7, Neutral: 7, Basic: <7
7
How does the H+ ion concentration affect the pH of a solution?
It only affects temperature
It has no effect on pH
Higher concentration means higher pH
Higher concentration means lower pH
8
Describe the characteristics of the following polysaccharides: glycogen, cellulose, starch
Glycogen: structural, Cellulose: energy storage, Starch: structural
Glycogen: energy storage, Cellulose: structural, Starch: energy storage
Glycogen: energy storage, Cellulose: energy storage, Starch: structural
Glycogen: structural, Cellulose: structural, Starch: energy storage
9
What is sampling error and how do scientists avoid this when developing an experiment?
Error due to measurement inaccuracies
Error due to random chance
Error due to a non-representative sample
Error due to bias in selection
10
What is the pH of a solution?
A measure of acidity or basicity
A measure of volume
A measure of concentration
A measure of temperature
11
What is the differences in structure and function of saturated and unsaturated fats?
Saturated fats are healthier than Unsaturated fats
Saturated fats are liquid, Unsaturated fats are solid
Saturated fats have double bonds, Unsaturated fats have no double bonds
Saturated fats have no double bonds, Unsaturated fats have double bonds
12
What is an independent variable?
The variable that is manipulated, the "cause"
The variable that is constant
The variable that is controlled
The variable that is measured
13
What is an element?
A mixture of different substances
A compound made of two or more elements
A pure substance made of one type of atom
A solution of various chemicals
14
What is an atom?
A group of molecules
A collection of compounds
The smallest unit of an element
A type of chemical bond
15
What about unsaturated fats?
Butter, cheese, red meat
Olive oil, avocados, nuts
Fruits, vegetables, grains
Fish, eggs, dairy
16
What is a Control Group?
A group that is manipulated
A group that is not exposed to the treatment
A group that is observed
A group that receives the treatment
17
What is an Experimental Group?
A group that is not exposed to the treatment
A group that receives no treatment
A group that is exposed to the treatment
A group that is observed
18
What are the charges of a proton, neutron, and electron?
Proton: neutral, Neutron: negative, Electron: positive
Proton: negative, Neutron: positive, Electron: neutral
Proton: positive, Neutron: neutral, Electron: negative
Proton: positive, Neutron: positive, Electron: negative
19
What are some food sources of saturated fats?
Oils, avocados, olives
Butter, cheese, red meat
Fruits, vegetables, grains
Fish, nuts, seeds
20
What are the general properties of fatty acids?
Saturated: gas at room temperature, Unsaturated: solid
Saturated: solid at room temperature, Unsaturated: liquid
Saturated: liquid at room temperature, Unsaturated: solid
Saturated: both solid and liquid
21
What is a dependent variable?
The variable that is measured, the "effect"
The variable that is controlled
The variable that is changed
The variable that is constant
22
What is critical thinking?
Relying solely on intuition
Analyzing and evaluating information
Accepting information at face value
Ignoring evidence that contradicts beliefs
23
What does it mean when an atom is positively or negatively charged?
It has no neutrons
It has only protons
It has unequal numbers of protons and electrons
It has equal numbers of protons and electrons
24
What are some monosaccharide and polysaccharide examples?
Monosaccharides: fatty acids, Polysaccharides: lipids
Monosaccharides: amino acids, Polysaccharides: proteins
Monosaccharides: starch, Polysaccharides: glucose
Monosaccharides: glucose, Polysaccharides: starch

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