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Test 1 Review
Test 1 Review
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A review of chemistry and cells for Test 1
Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
In scientific research, you start by
Making a hypothesis
Doing background research
Making an observation
Setting up an experiment
2
All livings things in a given area are called a
Population
Ecosystem
Species
Community
3
A potato in water becomes crisp. This solution is _____ and water moves ______ the potato.
hypertonic ; into
hypotonic ; into
hypotonic ; out of
hypertonic ; out of
4
What happen to a plant cell in a hypertonic solution?
crenation
lysis
plasmolysis
turgor pressure builds
5
In the diffusion experiment, how can we tell that starch did not move out of the bag?
The beaker was clear
The bag was black
The beaker was amber colored
The bag was clear
6
In a double covalent bond
Atoms share 2 pairs of electrons
1 atom transfers 2 electrons to the other atom
1 atom shares 2 electrons with the other atom
The atoms share 1 pair of electrons
7
How much of a substance with a molecular weight of 80 would you need for 500 mL of 3 M sol'n?
240 g
120 g
480 g
80 g
8
Which of the following structures has a 9+0 arrangement?
Cilia and flagella
Centrioles
rER
Centrosomes
9
What is the
FUNCTION
of this organelle
Conduct photosynthesis
Package and ship proteins and lipids
Manufacture lipids
Create ATP
10
Which of the following would you
NOT
find in a bacterial cell
Golgi apparatus
DNA
Plasma membrane
Ribosome
11
Tissues of the body will join to form
Organs
Cells
Organelles
Organisms
12
The scientific method requires
Both inductive and deductive reasoning
Inductive reasoning
Deductive reasoning
None of the above
13
Red blood cells have a tonicity of 0.9%. Which of these is hyptonic to blood?
0.9%
9%
1.9%
0.09%
14
This is a positive test for
Protein
Sugar
Lipid
Starch
15
1.5 meters equals
15 cm
150 cm
1500 cm
.015 cm
16
In ionic bonds,
Have a transfer of neutrons between atoms
Electrons are shared evenly between atoms
Electrons are shared unevenly between atoms
Have a transfer of electrons between atoms
17
Which is
NOT
a function of a protein in a membrane?
Enzyme
Transport substances
All are functions of proteins in membranes
Marker/label
18
The macromolecule that stores energy for both short and long term use
Nucleic acid
Lipid
Protein
Carbohydrate
19
Water's high specific heat is a consequence of
The energy required to break hydrogen bonds
The small size of the molecule
Water being the universal solvent
The high specific heat of oxygen
20
What reagent tests for sugars?
Iodine
Benedict's solution
Biuret solution
Sundan IV solution
21
What is the maximum number of covalent bonds an element with atomic weight 16 can form?
3
2
4
1
22
What is true about carbon?
All of these are correct
It can form 4 covalent bonds
It has 4 valence electrons
It can form a variety of molecular shapes
23
What oraganelle manufactures secretory protiens?
Smooth endoplasmic reticulum
Rough endoplasmic reticulum
Golgi apparatus
Mitochondria
24
Facilitated diffusion moves substances
With the concentration gradient requiring ATP
With the concentration gradient, not requiring ATP
Against the concentration gradient, not requiring ATP
Against the concentration gradient requiring ATP
25
A disaccharide can be broken down by
Hydrolysis
Dehydration synthesis
Adding heat
Adding acid
26
When a protein develops a pleated sheet structure, it has reached its
Primary structure
Tertiary structure
Secondary structure
Quarternary structure
27
If pH is increased from 8 to 9
pH 8 has 10 times more OH- than pH 8
pH 9 has 10 times more OH- than pH 8
pH 9 has 2 times more H+ than pH 8
pH 9 has 100 times more proton concentration than pH 8
28
Which organelles are found in animal cells, but not plants
Centromere and lysosome
Centrioles and lysosomes
Mitochondria and centrioles
Mitochondria and centromeres
29
Which macromolecule
requires
phosphorous to form
Lipids
Carbohydrates
Monosachharide
Nucleic Acid
30
An organism is eukaryotic, unicellular, and autotropic. Which kingdom does it belong to?
Animala
Protista
Fungi
Plant
