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HESI Biology Q&A
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HESI Biology Q&A ACTUAL QUESTIONS AND CORRECT ANSWERS 100% GRADE A+
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HESI BiologyStudy online at https://quizlet.com/_essfmv
1. What is the first step of cellular Glycolysis
respiration when glucose is con-
verted to pyruvate?
Glycolysis
The Krebs cycle
Electron transport chain
The Calvin cycle
2. A clinical researcher adminis- Placebo
tered a pill with no therapeutic
value to his subject. Which of
the following best describes this
treatment?
Evaluation
Double-blind
Placebo
Experimentation
3. Bony fishes belong to Phylum Kingdom
Chordata. Which of the following
levels of classification is more -Kingdom is a higher or more inclusive
inclusive than this level? level of the hierarchical system of classi-
fication than the phylum level.
Kingdom
Class
Order
Family
4. Which of these defines specific The amount of heat needed to raise the
heat? temperature of one gram of a substance
by one degree celsius
The amount of heat needed to
reduce the temperature of one -The amount of heat needed to raise the
gram of a substance by one de- temperature of one gram of a substance
gree celsius by one degree celsius is called specific
heat. The unit of specific heat is joules per
The amount of heat needed to gram per degree (J/g°C).
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raise the temperature of one
kilogram of a substance by one
degree celsius
The amount of heat needed to
raise the temperature of one
gram of a substance by one de-
gree celsius
The amount of heat needed to
reduce the temperature of one
kilogram of a substance by one
degree celsius
5. Polarity allows water to be a solvent
good __________.
solvent
solute
molecule
solution
6. How are carbohydrates ab- Carbohydrates are turned into glucose
sorbed into the bloodstream? and absorbed into the blood via the walls
of the small intestine.
Carbohydrates are turned into
glucose and absorbed into the - When your stomach digests food, car-
blood via the walls of the small bohydrates (sugars and starches) in the
intestine. food you ate gets broken down into an-
other type of smaller sugar, called glu-
Carbohydrates are turned into cose. The small intestines absorb the glu-
disaccharides and absorbed cose and then release it into the blood-
into the blood via the walls of the stream.
stomach.
Carbohydrates are turned into
fatty acids and absorbed into
the blood via the walls of the
large intestine.
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Carbohydrates are turned into
oxygen and are absorbed into
the blood via the lungs.
7. Humans and other animals re- Protein
quire nitrogen; however, they
cannot obtain it from the air -Animals and humans obtain the nitrogen
or soil. What must animals con- they require by consuming protein. Pro-
sume in order to obtain the nitro- teins are made of carbon, hydrogen, oxy-
gen they need? gen, and nitrogen, which are arranged as
chains (polymers) of amino acids.
Lipids
Protein
Glucose
Carbohydrates
8. Which of the following best de- Polymers of amino acids
scribes the structure of pro-
teins?
Polymers of steroids
Polymers of fatty acids
Polymers of nucleic acids
Polymers of amino acids
9. All metabolic reactions in a cell Enzymes
are catalyzed by which of the fol-
lowing? -Enzymes are a type of protein. They
catalyze (cause or accelerate) different
Phospholipids reactions and processes. Almost all cel-
Enzymes lular function is catalyzed by some type
Steroids of enzyme.
Amino acids
10. Cells with a high rate of protein Ribosomes
synthesis generally have a large
number of: -Ribosomes are responsible for protein
synthesis. Ribosomes read RNA pro-
Mitochondria duced in the nucleus and translate the
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Lysosomes genetic instructions provided to produce
Ribosomes proteins. Cells with a high rate of protein
Vacuoles synthesis typically contain a high number
of ribosomes.
11. If a substance is moving across Active Transport
a plasma membrane against
the concentration gradient, what
type of transport is required?
Passive transport
Active transport
Osmosis
Diffusion
12. The cell membrane is composed A bilayer of phospholipid molecules
of which of the following?
A single layer of phospholipid
molecules
A bilayer of phospholipid mole-
cules
A rigid layer of cytoskeleton
A wall of cholesterol and phos-
pholipids
13. Which organelle is responsible Mitochondria
for cellular respiration?
-Cellular respiration takes place inside
Golgi apparatus the mitochondria, which is the power-
Smooth endoplasmic reticulum house of the cell. In the mitochondria,
Mitochondria ATP (energy) is produced in three stages,
Rough endoplasmic reticulum which collectively are referred to as cellu-
lar respiration:
14. A metabolic pathway that breaks Cellular respiration
down glucose and produces
ATP is called __________.
Gluconeogenesis
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