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Midterm Questions 2
Test Description: Multiple choice questions
Instructions: Answer all questions to get your test result.
1) Diffusion is the movement of a substance
A
from an area of low concentration to an area of high concentration
B
only through a lipid bilayer membrane
C
from an area of high concentration to an area of low concentration
D
only in liquids
2) The dispersal of ink from a beaker of water is an example of
A
active transport
B
diffusion
C
osmosis
D
endocytosis
3) The diffusion of water into or out of a cell is called
A
active transport
B
solubility
C
endocytosis
D
osmosis
4) Osmosis is a type of
A
facilitated diffusion
B
passive transport
C
endocytosis
D
active transport
5) The electrons of an atom
A
are found in the nucleus along with the protons
B
have a positive energy
C
are attached to the positive charge of the neutrons
D
occupy space surrounding the nucleus
6) Unlike passive transport, active transport
A
moves substances down their concentration gradient.
B
osmosis
C
requires energy
D
gated channels
7) The phase of mitosis that is characterized by the arrangement of all chromosomes alone the equator of the cell is called
A
telophase
B
metaphase
C
anaphase
D
prophase
8) Which of the following is an example of active transport
A
diffusion
B
osmosis
C
sodium potassium pump
D
facilitated diffusion
9) The first three phases of the cell cycle are collectively known as the
A
interphase
B
mitosis
C
telophase
D
cellular respiration
10) Molecules that are too large to be moved across a cell can be removed from the cell by
A
diffusion
B
endocytosis
C
osmosis
D
exocytosis
11) Ridding the cell of materials by discharging the materials in vesicles is called
A
endocytosis
B
exocytosis
C
diffusion
D
osmosis
12) One difference between prokaryotes and eukaryotes is that
A
mitochondria are fond in larger quantities in eukaryotes
B
prokaryotes do not have a nucleus
C
Golgi vesicles are found in larger quantities in eukaryotes
D
nucleic acids are found only in prokaryotes
13) Which of the following is an example of a prokaryotic cell?
A
amoeba
B
liver cell
C
virus
D
bacterium
14) Only eukaryotic cells have
A
DNA
B
membrane-bound organelles
C
ribosomes
D
cytoplasm
15) A structure within a eukaryotic cell that performs a specific function is called an
A
biocenter
B
tissue
C
Organelle
D
organ tissue
16) an enzyme
A
all of the above
B
is not used up when catalyzing a reaction
C
lowers the activation energy of a reaction
D
bonds with a substrate molecule at the enzyme's active site
17) Enzymes
A
are biological catalysts
B
are able to heat up molecules so that they can react
C
absorb excess heat so that reactions occur at low temperatures
D
always provide carbon dioxide for chemical reactions
18) A molecule shaped like a spiral staircase (double helix) is a typical of
A
lipids
B
carbohydrates
C
deoxyribonucleic acid
D
ribonucleic acid
19) The structure that regulates what enters and leaves the cell is the
A
cell wall
B
cell membrane
C
nucleus
D
nuclear membrane
20) Short hairlike structures that protrude from the surface of a cell and are packed in tight rows are called
A
microtubules
B
flagella
C
microfilaments
D
cilia
*select an answer for all questions
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