Benedict's Solutions shows ___ and what shows a positive test?

Sugars; orange to red coloration

Covalent bonds are...?

A share of electrons between two atoms

Difference between starch and cellulose?

Linear formation vs Staggered formation

Sudan red shows ___ and what shows a positive test?

Lipids; separated red orange layer

What do the four elements most abundant in life-carbon, oxygen, hydrogen, and nitrogen-have in common?

Each element has unpaired electrons

Levels of protein structure and each defining characteristic accordingly?

Polypeptide chain, H-bonds, 3-D structures of a subunit, multiple subunits

Unhealthy because of their long shelf life (energy source)

Carbonyl, middle of the molecule vs start and end of the molecule

What did the Miller-Urey Experiment do?

Produced organic compounds and amino acids

A pH of 2 is what in comparison to a pH of 6?

acidic and 10,000 times more in H+

Components of nucleic acids?

Phosphate group, simple sugar, nitrogen base

Saturated vs unsaturated fats?

Ordered C-H bonds throughout vs cis or trans bond in sequence

Why does water have a high boiling point?

The hydrogen bonds between water molecules requires high energy to break

Good cholestrol vs Bad cholesterol

Cis vs trans bonds respectively

Which of these is NOT a characteristic of life?

Aerobic respiration & metabolization

studbud

BIOK101 Exam 1 Review

45 termsStudBud Administration226 plays

Use this #template to reinforce classroom concepts

Flashcards45 cardsFPractice quizPHost liveL

Questions 45

Answers

1
Lugols's Iodine shows ___ and what shows a positive test?
Starch; blue/green coloration
Starch; blue/purple coloration
Starch; yellow/green coloration
Starch; red/orange coloration
2
Benedict's Solutions shows ___ and what shows a positive test?
Proteins; red to purple coloration
Lipids; blue to green coloration
Starch, purple to black coloration
Sugars; orange to red coloration
3
Purines are which bases?
Adenine and Guanine
Cytosine and Thymine
Adenine and Uracil
Cytosine and Guanine
4
Covalent bonds are...?
Attraction of one atom to another due to greater negativity
Hydrogen bonded to any atom to reach the octet rule
A share of electrons between two atoms
Hydrogen bonded to Nitrogen, Oxygen, or Fluorine
5
What is the pH if the {H+} is 1x10^-3
1x10-3
3
-3
11
6
Important concept of water in relation to chemistry?
Water is found in all living and non-living objects/organims
Amphipathic characteristics make bonds possible
Like dissolves those not alike
Like dissolves like
7
Difference between starch and cellulose?
No difference
primary vs secondary energy sources
Linear formation vs Staggered formation
Compound names are different
8
Water is...?
Basic
Polar
Wet
Non-polar
9
What is this specifically and what is its name?
Lipid; Cholesterol
Steroid; Testosterone
Lipid; Estradiol
Fat; Cholesterol
10
Sudan red shows ___ and what shows a positive test?
Proteins; blue/green coloration
Starch; blue/green coloration
Carbohydrates; purple coloration throughout
Lipids; separated red orange layer
11
Large molecules are made by what process?
Hydrolysis
Cellular Respiration
Dehydration Synthesis
Photosynthesis
12
Biuret's test shows ___ and what shows a positive test?
Carbohydrates; purple coloration throughout
Starch; blue/green coloration
Lipids; separated red orange layer
Proteins; blue coloration
13
What do the four elements most abundant in life-carbon, oxygen, hydrogen, and nitrogen-have in common?
They all fulfill the octet
Each element has unpaired electrons
All living organisms have an equal precent of each in their composition
They have the same electronegativity
14
What is the 5th level of organization in biology going from smallest to largest?
organs
tissue
organ systems
populations
15
Levels of protein structure and each defining characteristic accordingly?
Polypeptide chain, H-bonds, 3-D structures of a subunit, multiple subunits
Amino acid sequence, polypeptide chain, H-bonds, disulfide bridge
glycerol backbone, fatty acid tail, phosphate group, amino acid tag
Amino acid sequnce, peptide bonds, ester bonds, disulfide bonds
16
Domains of life?
Eukarya, Prokarya, Archaea
Eukarya, Bacteria, Archaea
Eukaryota, Bacteria, Archaea
Eubacteria, Archaebacteria, Protista
17
Importance of enantiomers? (Think of pharmaceutical companies)
Life or Death
Monopolization of the drug industry
Availability to greater number of communities
Resource Efficiency
18
Trans fats are...?
Preferred over unsaturated fats
Unhealthy because of their long shelf life (energy source)
Healthy because of their long shelf life (energy source in the body)
A primary energy source from the macromolecules communities
19
If Apples are to tree then cars are to ___?
driveway
carwash
parking lot
garage
20
Proteins are made up of?
amino acids
glycerol backbone, fatty acid tailsm and a phosphate group
nucleic acids
monohydrates
21
How do you calculate atomic mass?
p + n = m
p
p + e = m
mol x (6.022x10^23)
22
What does A define?
Atomic Mass
Element Name
Atomic Charge
Atomic Number
23
What is one main differentiation between prokaryotes and eukaryotes?
cellular differentiation for specialization
evolutionary development for succession
aerobic vs anaerobic processes
membrane bound organelles
24
Lactose is the combination of?
Fructose:Galactose
Glucose:Galactose
Glucose:Fructose
Glucose:Glucose
25
Which is the Carboxyl group?
- COOH
- OPO3 -
- OH
- SH
26
Another difference between prokaryotes and eukaryotes?
Circular vs linear DNA
Cell wall presences in both categories involving all organisms
Usage in industrial settings for civil advancements
Setting of origin between land and sea
27
Ketone vs Aldehyde?
Carboxyl, middle of the molecule vs start and end of the molecule
Carbonyl, middle of the molecule vs start and end of the molecule
Carbonyl, middle of the molecule vs end of the molecule
Carbonyl, middle of the molecule vs start of the molecule
28
What did the Miller-Urey Experiment do?
Discover the conditions needed to make life
Produced amino acids, organic compounds, and other inorganic compounds
Produced organic compounds and amino acids
Produce inorganic compounds only
29
Hormones are considered what kind of macromolecule?
Carbohydrates
Lipids
Proteins
Nucleic Acids
30
Characteristic of Hydroxyl groups?
Non-polar
Hydrophobic
Alcohols
Polar
31
A pH of 2 is what in comparison to a pH of 6?
basic and 10,000 times less in OH-
acidic and 10,000 times more in OH-
acidic and 10,000 times more in H+
basic and 10,000 times more in H+
32
Carbohydrates are?
All of the above
Primary energy source
Composed of C, H, and O
Simple sugars
33
What does Z define
Element Name
Atomic Charge
Atomic Number
Atomic Mass
34
What are these?
Aromatic
Isomers
Enantiomers
Diasteromers
35
Components of nucleic acids?
Phosphate group, simple sugar, nitrogen base
Sugar base, alpha helices or beta pleated sheets, fatty acid tail
Phosphodiester bond, fatty acid tail, polypeptide chain
Nitrogenous base, glycosidic bond, glycerol back bone
36
Saturated vs unsaturated fats?
None of the above
Ordered C-H bonds throughout vs cis or trans bond in sequence
cis bonds vs trans bonds
Cis or trans bond in sequence vs ordered C-H bonds throughout
37
Why does water have a high boiling point?
The hydrogen bonds between water molecules requires high energy to break
Water is a liquid and requires more heat to evaporate
Water is fluid and can surround objects increasing surface areas
Water is able to diffuse through membranes rapidly to avoid high temps
38
What is this? Polar or nonpolar?
Steroid; Non-polar
Protein; Polar
Nucleic Acid chain, Non-polar
Protein; Non-polar
39
Now which is Cellulose?
Bottom
Neither
Top
Chemically equivalent
40
What are these?
Anomer
Enantiomers
Epimer
Diastereomers
41
Good cholestrol vs Bad cholesterol
Ester vs peptide bonds respectively
Cis vs trans bonds respectively
Peptide vs ester bonds respectively
Trans vs cis bonds respectively
42
What types of bonds are found in DNA exclusively?
Ester
Phosphodiester
Peptide
Gylcosidic
43
Which of these is NOT a characteristic of life?
Aerobic respiration & metabolization
Growth and change
Reproductive ability
Cellular organization
44
What distiguishes a Carbonyl group?
Nitrogen attached to two hydrogen atoms
O double bonded to a carbon
Presence of three H atoms
O and H bonded together
45
This molecule is...?
deoxyribulose
Ribose
Ribulose
Deoxyribose

BIOK101 Exam 1 Review Flashcards | StudBud