Unit 1
What is the monomer of carbohydrates?
monosaccharides
What molecule leaves the nucleus in transcription?
mRNA
What reactants are needed for photosynthesis?
Energy (light), carbon dioxide, and water
Carrots --> Rabbits --> Foxes
What is the name of the trophic level that the fox is in?
secondary consumer
Set the timer to 2 minutes!
In tomatoes, red fruit (R) is dominant to yellow fruit. Two parents have red fruit. What are their genotypes if the offspring has a 25% chance of being RR, 50% chance of being Rr, and 25% chance of being rr?
Both parents must be Rr.
Which macromolecule has the monomer of fatty acids?
lipid
Unattached earlobes (U) are dominant to attached earlobes and tongue rolling (T) is dominant to not being able to roll tongue. The wife is homozygous dominant for unattached earlobes and heterozygous for tongue rollling. The husband has attached earlobes and is homozygous dominant for tongue rolling. Write the parents genotypes?
If U = unattached earlobes and u = attached, and T = tongue rolling and t = no tongue rolling then,
the wife is UUTt and the husband is uuTT.
If the quaternary trophic level contains 29 kCal of energy, how much energy do the secondary consumers have?
2,900 kCal
Translation takes place in what organelle of the cell?
ribosome
DNA and RNA are examples of which macromolecule?
Nucleic acids
Enzymes are an example of which type of macromolecule?
proteins
Transcription takes place in what organelle in the cell?
nucleus
What type of energy is released in cellular respiration?
ATP energy
What organisms help to reduce the amount of atmospheric carbon levels?
Producers
because they take in carbon dioxide from the atmosphere to complete photosynthesis
(Other acceptable answers: autotrophs, plants, or examples of plants)
A water plant was placed into a test tube with a snail. What does the snail provide the plant with to complete photosynthesis?
Carbon dioxide
What are the elements of a nucleic acid?
carbon, hydrogen, oxygen, nitrogen, and phosphorus
Set timer to 1 minute!
If an organism's DNA has 12% cytosine, it will have _______________ adenine.
38% adenine
because the DNA will have 12% cytosine and 12% guanine. This equals to 24%, leaving 76% to be split up evenly between thymine and adenine. So thymine = 38% and adenine= 38%.
Name at least two processes where organisms release carbon back into the atmosphere and/or causes carbon to stay in the atmosphere.
1. Cellular respiration
2. Cutting down trees
3. Burning fossil fuels
4. Decomposition
Manny and his sister have the trait. Their parents do not have the trait. What type of pedigree is shown?
autosomal recessive
What is the chemical equation for cellular respiration?
C6H12O6 + 6O2 --> 6H2O + 6CO2 + ENERGY(ATP)
Which macromolecules are organic?
Organic molecules contain Carbon.
All macromolecules are organic because they contain carbon.
Set timer to 2 minutes!
Translate this DNA strand - TAC GCG TGC ATT
Met - Arg - Thr - Stop
- You must first transcribe DNA into an mRNA, which is AUG CGC ACG UAA
- Then translate mRNA into amino acids, which is Met - Arg - Thr - Stop
Describe one reason why photosynthesis and cellular respiration are opposite processes.
1) Photosynthesis creates food and puts IN energy while cellular respiration breaks down food to take energy OUT.
OR
2) The reactants of cellular respiration and the products of photosynthesis and vice versa.
Set the timer to 5 minutes!
Having a widow's peak is dominant to a straight hairline and having dimples is dominant to not having dimples.
In fractions, what are the chances of the offspring having a straight hairline and no dimples if the parents are both heterozygous for widow's peak and dimples.
1/16
Name 2 differences in structure between DNA and RNA.
Any 2 of the following statements will be accepted:
1) DNA has two strands while RNA has 1 strand.
2) DNA has the base thymine and RNA has uracil.
3) DNA has the sugar deoxyribose while RNA has ribose.