HESI A2 Biology Multiple Choice Questions and Answers Already Passed
which of the following properties of water causes water droplets to form beads on surfaces, such as on a leaf?
- adhesion
- specific heat
- surface tension
- ability to dissolve substances ✔✔c) surface tension: pulls together the molecules on the
surface of water, forcing them to form a sphere, or bead
which of the following polymers is created by joining amino acids?
a) DNA
- lipid
- protein
d) carbohydrate ✔✔c) proteins: are built by joining amino acids
- / 4
which of the following nucleotides is NOT found in DNA?
- adenine
- uracil
- thymine
d) cytosine ✔✔b) uracil: a nucleotide found in RNA, not DNA
which of the following compounds is NOT created by joining monosaccharides?
- glycogen
- starch
- cellulose
d) guanine ✔✔d) guanine: a nucleic acid, not a polysaccharide
the Golgi apparatus is responsible for which of the following tasks?
- protein synthesis
- intracellular and extracellular transport 2 / 4
- storage and replication of DNA
- production of ATP ✔✔b) intracellular and extracellular transport: the Golgi apparatus
packages and transports proteins produced on the endoplasmic reticulum
which of the following structures is embedded in the cell membrane to facilitate the movement of molecules across the membrane?
- proteins
b) ATP
- glucose
- lipids ✔✔a) proteins: embedded in the cell membrane are integral to many cell functions,
including active transport and some types of passive transport
a student places a cell with 50 mM intracellular ion content into a solution containing a 20 mM ion content. which of the following will happen in this system?
- water will move out of the cell, decreasing the size of the cell
- water will move into the cell, increasing the size of the cell
- ions will move into the cell 3 / 4
- there will be no movement of water or ions across the cell membrane ✔✔b) water will move
into the cell, increasing the size of the cell: the concentration of ions is higher inside the cell than outside, so water will move into the cell from the environment, increasing the size of the cell
which of the following substances cannot travel across a cell membrane without the use of energy?
- water
- potassium
- sodium
- glucose ✔✔d) glucose: a glucose molecule is too large to pass through the cell membrane
without the help of specialized proteins
all of the following molecules are used in the Calvin Cycle EXCEPT
a) O2
b) CO2
c) ATP
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