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