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UNIT 1 - BIOLOGY BASICS Flashcards | StudBud
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UNIT 1 - BIOLOGY BASICS
UNIT 1 - BIOLOGY BASICS
40 terms
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Answers
1
The macromolecules most likely involved in contracting muscles?
carbs
lipids
enzymes
proteins
2
What changes in response to the independent variable? What is measured?
Constant(s)
Dependent variable
Experimental Group
Independent variable
3
Examples of carbs are:
sugars, like glucose, and starches
fats, oils, phospholipids, steroids
hemoglobin, insulin, collagen
DNA & RNA
4
Our bodies will always take in energy in which order?
proteins, lipids, carbs
carbs, lipids, proteins
carbs, proteins, lipids
lipids, carbs, proteins
5
If available, the body will always digest which macromolecule first?
lipids
proteins
enzymes
carbs
6
Neutrons are neutrally charged
True
False
7
Animals store most of their excess energy reserves as??? because???
carbohydrates; they store twice as much as energy per gram of glucose
glucose; easy to break down
fat; they store twice as much energy per gram
protein; it is a compact source of energy in their bodies
8
Group(s) being tested in an experiment
Independent Variable
Constants
Experimental Group
Dependent Variable
9
What is deliberately changed or manipulated in an investigation?
Experimental Group
Constants
Dependent Variable
Independent Variable
10
We store the most energy in lipids because they store the most energy per gram
True
False
11
Aspects of an experiment that are kept constant/consistent
Control Group
Constants
Dependent Variable
Independent Variable
12
Examples of Nucleic Acids
DNA & RNA
fats, oils, and phospholipids, and steroids
sugars, like glucose, and starches
Hemoglobin, Insulin, collagen
13
the most important element necessary for life that makes up every macromolecule
oxygen
hydrogen
nitrogen
carbon
14
What is the most important element that makes up every macromolecule?
Hydrogen
Nitrogen
Oxygen
Carbon
15
The dependent variable is the cause, and the independent variable is the effect
True
False
16
A solute is what does the dissolving in a mixture.
False
True
17
This special property of water is responsible for surface tension in water.
high specific heat
cohesion
water is a terrific solvent
adhesion
18
An example of a solution is saltwater
False
True
19
Six elements necessary for life are C,H,O,N,P,S
False
True
20
What is the smallest part of an element that still holds the property of that element?
cells
atoms
monomer
macromolecules
21
Life can exist under frozen surfaces in polar seas because…
water is less dense as a solid
water is a terrific solvent
water has a high specific heat
water has a high surface tension
22
Correct level of organization that make up an organism
Atom-Molecule-Organelle-Cell-Tissue-Organ-Organ System-Organism
None of these answers are correct
Molecule-Atom-Cell-Organelle-Tissue-Organ-Organ System- Organism
Atom-Molecule-Cell-Organelle-Tissue-Organ-Organ System-Organism
23
What are the six elements necessary for life?
None of the above
C, H, O, Na, P, Cl
C,H,O,N, P, S
C, H, O, N, P, Si
24
Runs your body and does everything. Enzymes, hormones, transport, muscles, movement, antibodies, receptors
proteins
carbs
lipids
nucleic acids
25
Which of the following is Not true about lipids?
Glycerol and fatty acids are monomers of lipids
it makes up the cell membrane
lipids cushion our organs
amino acids connected by peptide bonds creates lipids
26
The macromolecule that makes up the majority of the cell's membrane structure is...?
carbs
protiens
enzymes
lipids
27
Energy storage molecule (short term), structure, signaling, transport... are all functions of which macromolecule?
proteins
Carbs
Lipids
nucleic acid
28
Hypotheses always include a cause-and-effect relationship where one variable causes another to change
False
True
29
Small basic sub-unit that makes up polymers
molecules
polysaccharide
monosaccharide
Monomers
30
Informational molecule; has the instructions for making proteins; stores, transmits & express genetic information
nucleic acids
proteins
lipids
Carbs
31
Phospholipid structure includes...
Hydrophilic tail, hydrophobic head
Hydrophylic head, hydrophobic tail
32
Which of the following is NOT a main function of proteins?
muscle contraction
enzymes that catalyze reactions
hormones that regulate cell processes
energy storage
33
We store excess energy in carbs because they sotre the most energy per gram
False
True
34
What is the basic unit of life called
molecule
Atoms
cells
organelle
35
Examples of lipids
Sugars (like glucose) and starches
fats, oils, phospholipids, steroids
hemoglobin
DNA & RNA
36
Which of the following does NOT describe a Carbohydrate?
glycerol and fatty acids are monomers of it
glucose is a type of this macromolecule
sugars, starches, and cellulose
built from monosaccharides
37
When placed in water, oil does not dissolve and stays separate. This means oil is ____ and ____
hydrophobic and nonpolar
hydrophilic and nonpolar
hydrophilic and polar
hydrophobic and polar
38
the monomer of carbohydrates
monosaccharide
molecules
polymer
polysaccharide
39
Energy storage molecule (long term) as well as insulation cushioning, structure, and protection
nucleic acids
Carbs
Lipids
proteins
40
Large organic molecules that make up all living things are called?
polymers
molecules
macromolecules
monomers
