WorksheetsBiology Semester 1 pre-test/post
Total questions: 36
Worksheet time: 18mins
The dispersal of ink in a beaker of water is an example of
endocytosis
diffusion
active transport
osmosis
Which disease is caused by a problem in the regulation of the cell cycle?
cancer
Down syndrome
sickle-cell
diabetes
Low temperatures may cause photosynthesis to occur
only in sunlight
more slowly
at a constant rate
more quickly
Removing materials from a cell membrane if a signal molecule causes a transport protein to open?
activation of an enzyme
formation of a second messenger
change in chemical reactions
permeability change
Osmosis is a type of
active transport
passive transport
endocytosis
simple diffusion
Refer to the illustration above, Which of the following correctly indicates the order in which these events occur?
A, B, C, D
C, B, A, D
B, A, C, D
A, B, C, D
Binary fission
occurs when two cells collide with each other.
creates new species
is the process by which bacteria reproduce
produces excess energy
The genetic material that provides instructions for making proteins is
cytosol
a ribosome
cytoplasm
DNA
The synthesis (S) phase is characterized by
DNA replication
the division of cytoplasm
replication of the mitochondria and other organelles
cell division
Which of the following molecules are most closely related to proteins?
monosaccharides
nucleotides
amino acids
sugars
A substance that is composed of only one atom is called?
molecule
element
compound
cell
When a phosphate group is removed from an ATP molecule?
energy is stored
a substantial amount of energy is released
an enzyme is formed
a substantial amount of energy is used.
Which of the following shapes would allow a cell to have the greatest surface area-to-volume ratio?
egg shaped
sphere
broad and flat
cube
Cell growth:G1::
mitosis:cytokinesis
Mitosis : meiosis
mitochondria replication : synthesis phase
DNA copying : synthesis phase
How many carbon dioxide molecules are produced during the cellular respiration of two glucose molecules?
twelve
six
two
four
The energy used in the Calvin cycle for the production of sugar molecules comes from
ATP and NADPH
carbon dioxide
ATP only
the Krebs cycle
Which cells have a cell membrane, cytoplasm, ribosomes, and DNA?
all cells
only prokaryotic
only eukaryotic
only animal
When glycolysis occurs
a molecule of glucose is split
a molecule of glucose is formed
photosynthesis begins
pyruvates are combined
Lipids are
made of chains of amino acids
soluble in water
used by the body for storing energy
linked together with peptide bonds
Which of the following are not true about the dark reactions of photosynthesis?
require ATP and NADPH
generate sugars
use water as an electron source
are light independent
As a result of diffusion, the concentration of many types of substances
always remains greater inside a membrane
always remains greater on the outside of a membrane
becomes imbalanced on both sides of a membrane
eventually becomes balanced on both sides of a membrane
To function efficiently , a cell's size must be
small
any size
medium
large
Which of the following molecules are classified as carbohydrates?
fats
amino acids
sugars
nucleotides
Which is not a unique property of water?
water retains a large amount of heat
water cools rapidly
water molecules stick to each other
frozen water floats
Which of the following is not formed during the Krebs cycle?
FADH2
NADPH
CO2
NADH
The organelle that modifies, sorts, and packages proteins is the
lysosome
ribosome
Golgi Apparatus
endoplasmic reticulum
The passing of traits from parents to offspring is called
maturation
heredity
development
genetics
The law of conservation of energy states that energy cannot be
changed from one form to another
released into the surroundings in a reaction
created or destroyed in a chemical reaction
taken from the surroundings in a reaction
Acidic solutions have a pH that is
a negative number
more than 7
less than 7
7 and 14
DNA stores
fat
energy
hereditary information
carbohydrates
The first three cycles of the cell cycle are collectively known as
telophase
mitosis
interphase
a gap
Short thick outgrowths that allow prokaryotes to attach to surfaces or each other are called
pilli
flagella
microtubules
microfilaments
The amino group of one amino acid is linked to the carboxyl group of another amino acid in a protein
polar bond
ionic bond
peptide bond
hydrogen bond
Cells that are dividing remain in the
synthesis phase
first gap phase
second gap phase
mitosis phase
One difference between prokaryotes and eukaryotes is that prokaryotes do not have
a cell membrane
cytoplasm
a nucleus
DNA
Which of the following does not require energy?
active transport
endocytosis
diffusion
sodium potassium pump
