Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
|
What is the relationship between a calorie and a kilocalorie? If Karsen eats 2000 calories, how many kilocalories has he eaten? |
Kilocalories are 1000 of a calorie, so Karsen would've eaten 2 kilocalories. |
|
|
What is the formula for cellular respiration in symbols and words? |
C6 H12 06 + 602 ----> 6CO2 + 6H2O =Energy glucose + oxygen ----> carbon + water + energy |
|
|
What happens to a molecule of glucose that undergoes glycolysis? |
It splits in half and makes 2 pyruvic acid molecules |
|
|
The electron transport chain uses the energy stored in high-energy electrons to pump H+ ions across the inner mitochondrial membrane. Why? |
To make ATP |
|
|
Give two examples of fermentation in real life. |
Yeast causing bread to rise and lactic acid forming while you exercise. |
|
|
Why does lactic acid fermentation "kick in" while running a race? |
ATP is low, so not a lot of oxygen is produced, and it allows glycolysis to continue. |
|
|
What roles does oxygen play in photosynthesis and in cellular respiration? |
Oxygen is the reactant in cellular respiration and the product of photosynthesis. |
|
|
How does packaging genetic information into chromosomes help the process of cell division? Refer to the VHS tape analogy to strengthen your response. |
It is more organized since there are thousands of genes within a chromosome. It would be a big mess and some genes might get tangled with others. The film around the white part of the VHS tape keeps it organized, like a chromosome. |
|
|
Explain the 3 mechanisms why the daughter cells produced by meiosis are genetically different from each other, whereas the daughter cells produced by mitosis are not. |
crossing-over, independent assortment, and random fertilization |
|
|
A cross between two organisms heterozygous for two different genes (AaBb) likely results in a 9:3:3:1 phenotype ratio among the offspring. Is the offspring's genotype ratio the same? Explain |
No the genotype ratio would be completely different because it asks what the genotypes are and how many there are. |
|
|
List 2 things DNA does with information. |
It codes for genes and makes proteins. |
|
|
What are the roles of covalent bonds and hydrogen bonds in the structure of DNA? |
Covalent bonds form the backbone of DNA and hydrogen bonds is what holds the base pairs together. |
|
The complimentary strand to the one above, reading from the bottom up, would be what? |
AGCT |
|
Since both the protein and the DNA were both radioactively labeled, how did the scientist determine the DNA was the material that infects the cell? |
The bacteriophage with phosphorus-32 in DNA infected a bacteria which ended up with radioactivity inside it and the virus was gone. |
|
Explain what happened to the bacteria and the mice in experiment 4. |
The mice died, even though they R-strain and heat-killed S-strain cured some. This is because the DNA in the R-strain mixed with that of the heat-killed one, which brought the disease back to life. |
|
|
Summarize Jean-Baptise Lamark's ideas about how organisms changed over time. |
He thought that organisms change over time as they adapt to changing environments. He believed that the changes occur due to use or disuse of a trait would be passed on to offspring. |
|
|
Define the term analogous structure and give an example. |
Different structure, same function. A butterfly's wings and bird's wings are used for the same thing, but have different structures. |
|
|
What might happen if a well-adapted population experienced sudden major changes in its environment? |
The population would begin to adapt to these changes, however through the long process of evolution, some species may die. Only the strongest will live and adapt. |
|
What do the bone structures indicate about a human arm, the fin of a whale, and the wing of a bat? |
That they share a common ancestor. |
|
Vegetation on Hood Island is sparse and hard to reach. How might the vegetation have affected the evolution of the Hood Island tortoise? Considering the body structure of the tortoises, which one-a population from Pinta Island or Isabela Island-might survive more successfully on Hood Island? |
The tall vegetation caused the tortoise to evolve to survive. The Pinta Island tortoise because it already has a pretty long neck to reach the tall vegetation, and it's neck is longer than the Isabela Island tortoise. |
