Intro to Bio
__________ __________ can’t answer questions about a person’s beliefs, ethics, opinions, and feelings.
What is scientific inquiry?
T or F? DNA contains thymine, RNA contains uracil.
What is true?
Which of the following are examples of chemical changes?
a) evaporating gasoline
b) burning a candle
c) boiling water
d) salivating on food
What are b and d?
Captures the sun’s energy to transform water and carbon dioxide into glucose for food.
What are chloroplasts?
The planetary body that was named after the Roman goddess of love.
What is Venus?
Companies may show ______ so that scientific research inaccuracies don’t affect their sales.
What is bias?
Three bases in RNA and DNA that are the same.
What are adenine, cytosine, and guanine (A, C, G)?
Classify EACH as organic or inorganic: a) C2HCl3O, b)Na2SO4, c) CaCl2, d) CH3COOH
What is a) organic, b) inorganic, c) inorganic, d) organic?
An infectious agent that has RNA only and duplicates within a cell only.
What is a virus?
Deposits of excess fat at the sides of a person's waistline.
What are love handles?
A variable that stands alone and isn't changed by the other variables you are trying to measure is a(n) _________ variable. A variable that depends on other factors is a(n) __________ variable.
What are independent and dependent?
T or F: Phagocytosis (cell eating) and pinocytosis (cell drinking) and are types exocytosis.
What is false?
T or F: The best sources of essential amino acids are plant proteins like beans, lentils and nuts.
What is false? The best sources of essential amino acids are animal proteins like meat, fish, poultry, eggs and dairy.
Many _______ ________ have a large, single central vacuole that typically takes up most of the room in the cell (80 percent or more).
What are plant cells?
T or F: Wives and girlfriends receive the most Valentine's Day cards each year.
What is false? Teachers receive the most valentines.
A malfunctioning blood pressure cuff may give consistent readings that are 10 points higher than the actual reading. The cuff is reliable but not _______.
What is accurate?
More than fifty human hormones have been identified; all act by binding to specific ________ molecules.
What is receptor?
Match the molecular formula or given symbol to the term that best describes it.
Br2 C5H12 K H3PO2
a) element b) inorganic compound
c) organic compound d) inorganic elemental molecule
What are:
a) element <-> K,
b) inorganic compound <-> H3PO2
c) organic compound <-> C5H12
d) inorganic elemental molecule <-> Br2
Tiny spherical organelles, found in both eukaryotic and prokaryotic cells, that make proteins by joining amino acids together.
What are ribosomes?
Which term refers to when a male and female each pay for their own meals or entertainment on a date?
A) Having a "Square Meal"
B) Going Dutch
C) Anteing Up
D) Even Steven
What is B?
Scientific method steps.
What are 1) observe 2) question 3) hypothesize 4) experiment/test 5) conclude/analyze 6) communicate results?
T or F: The first step of protein synthesis is called Transcription. It occurs in the nucleus. During transcription, DNA is "unzipped” and the mRNA strand copies a strand of DNA.
What is true?
2NaBr + Cl2 --> ___ NaCl + ___ Br2
2NaBr + Cl2 --> 2NaCl + 1Br2
__________ are important parts of our cells because they take food and make energy that the rest of the cell can use.
What are mitochondria?
Group of symptoms, often known as "the kissing disease", contracted through contact with saliva.
What is mononucleosis (mono)?