Food
Organic Chemistry
Biology
Chemistry
Genetics
100
Which of the following makes up most of the body?
Sugars
Water
Carbohydrates
Protein
Water
100
What connects dinucleotides?
5-Carbon Sugar
Nucleotide
Hydrogen Bonds
Phosphodiester Bonds
Phosphodiester Bonds
100
What kind of bonds are between two non-metals.
Ionic
Covalent
Metallic
Double
Covalent
100
DMD is an X-linked recessive gene. What is the percentage that a female child gets DMD?
50%
25%
75%
0%
0%
200
Among the many nutrients the body needs, what is the most necessary nutrient for building blocks of the body?
Sugar
Carbohydrates
Protein
Calcium
Protein
200
Which of the following is true regarding gram positive bacteria?
I. it contains no mitochondria
II. it has a thick peptidoglycan layer
III. it lacks a plasma membrane
Answers:
I only
I and II only
II only
I, II and III
I and II only
200
Approximately what percentage of the air on earth is oxygen?
50%
80%
20%
25%
20%
200
What is the correct name for H2O?
Dihydrogen Oxide
Hydrogen (II) Oxygen
Oxygen Hydroxide
Hydroxide Acid
Dihydrogen Oxide
200
Cystic fibrosis is an autosomal recessive gene. If both parents are heterozygous for cystic fibrosis, what is the percentage that their children have cystic fibrosis?
50%
75%
25%
0%
25%
300
Various energy sources (e.g., fats, proteins) have different locations within the body where they are broken down. Which of the following energy sources is broken down as early as the mouth?
Vitamin C
Fat
Protein
Carbohydrate
Carbohydrate
300
Which of the following amino acids is a common target of protein kinases?
Threonine
Arginine
Tryptophan
Glutamic acid
Threonine
300
In the early 1800's, moths went from being mostly while to mostly black. In biological terms, we call this:
Macroevolution
Microevolution
Natural Selection
Evolutionary Drift
Microevolution
300
Which of the following is false regarding the halogen group of elements?
They readily form salt compounds
Atomic radius increases going down the group
They have very high electronegativity
They only have an oxidation number of -1
They only have an oxidation number of -1
300
A particular plant population has two genes that each have two alleles (one dominant and one recessive). Breeding takes place such that one parent is homozygous recessive for both genes and the other parent is homozygous dominant for both genes. If two plants from the first generation of offspring are bred, how many possible phenotypes would be expected in this second generation?
2
4
8
16
4
400
Enzyme breaks down into 2 types for food processing: type A is like bread and type B is like alcohol. What are the 2 types?
Krebs Cycle & Fermentation
Yeast & Carbonation
Yeast & Fermentation
Krebs Cycle & Carbonation
Krebs Cycle & Fermentation
400
In humans, proline can be synthesized from glutamate which in turn can be derived from α-ketoglutarate. It can therefore be concluded that:
Proline is necessary for the Krebs cycle.
Glutamate and proline play similar roles in proteins.
Proline production is an irreversible reaction in the body.
Proline is not an essential amino acid in humans.
Proline is not an essential amino acid in humans.
400
While there are 400 breeds variations of dogs, wolves tend to look similar. What biological concept is the explanation for this phenomenon?
Natural Selection
Genetic Drift
Sexual Selection
Macroevolution
Sexual Selection
400
For an atom to be balanced, what is the ratio of protons to elections?
1:4
2:4
3:4
4:4
4:4
400
Cystic fibrosis has been studied at length and has been found to be a recessive genetic disorder. A female with cystic fibrosis has three children with a male who is a carrier of the cystic fibrosis gene. Which of the following correctly lists the probability that all three children are carriers of the cystic fibrosis gene, but do not have the disease?
0%
12.5%
25%
100%
12.5%
500
The famous "Keto Diet" puts the body into Ketosis. What is Ketosis?
Fat Burning
Muscle Building
Starvation
Stasis
Starvation
500
Which of the following compounds would be expected to have the highest λmax (wavelength of maximum absorption)?
D
500
Neural transduction occurs in which direction?
Cell body, dendrites, axon
Axon, dendrites, cell body
Axon, cell body, dendrites
Dendrites, cell body, axon
Dendrites, cell body, axon
500
In the periodic table of elements, what is the one element that acts both as a metal and non-metal?
Silicone
Oxygen
Helium
Hydrogen
Hydrogen
500
Histone methylation that weakens the association of histones with DNA results in:
An increase in transcription.
A decrease in RNA stability.
A decrease in protein concentration.
An increase in chromatin density.
An increase in transcription.