Which of the following lists best illustrates the idea of increasing levels of complexity?

Organelles, cells, tissues,organs, organ systems

The defining characteristic of a stem cell is

the ability to turn into another type of cell.

Which of the following are vital signs?

Body temperature, blood pressure, and pulse rate

The formula H2O refers to

A molecule that contains two hydrogen atoms and one oxygen atom.

The function of the nucleus is to

direct the activities ofthe cell.

One reason protein synthesis is important is that

enzymes are proteins and enzymes are essential to metabolism.

Osmosis is the movement of

water molecules from high to low concentration

stores genetic information in the nucleus of the cell.

tendency of the body tomaintain a stable internal environment.

If a red blood cell is placed in a hypotonic solution,

the cell will swell and mayeventually burst.

Which of the following groups of elements accounts for more than 95% of the human body by weight?

Carbon, hydrogen, oxygen,nitrogen

Metabolism is defined as _____.

all the chemical reactionsoccurring in an organism that support life

a molecule, usually a protein, that speeds the rate of a reaction.

The pH scale measures the

concentration ofhydrogen ions in solution which makes it acidic or basic.

The three major parts of a composite cell are

the nucleus, cytoplasm, and cell membrane.

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Biology&Basics Review

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Questions 28

Answers

1
Which of the following lists best illustrates the idea of increasing levels of complexity?
Tissues, cells, organs, organelles, organ systems
Cells, tissues, organelles,organs, organ systems
Organs, organelles, organ systems, cells, tissues
Organelles, cells, tissues,organs, organ systems
2
The ears are lateral to the eyes.
False
True
3
The thoracic cavity lies _____________ the abdominal cavity.
ventral (anterior) to
inferior to
dorsal (posterior) to
superior to
4
The defining characteristic of a stem cell is
self-repair.
the ability to turn into another type of cell.
the ability to divideonly once.
the ability to turn into a cancer cell.
5
Metabolism consists of all of the physical actions of an organism that make it able to move.
False
True
6
Which of the following are vital signs?
Body temperature, blood pressure, and pulse rate
Body weight, age, gender
Appearance of the skin, red blood cell count, oxygen level
Visual acuity and auditorysharpness
7
Which of the following is characteristic of carbohydrates?
They include sugarsand starches.
all of these.
They provide much ofthe energy that the cell requires.
They areidentification molecules on cell membranes.
8
A molecule that carries energy in a form the cell can use is
ATP.
glycogen.
vitamin C.
glucose.
9
Proteins
all of these.
can function as enzymes.
are structuralmaterials.
are not the first molecules used for cellular energy.
10
The formula H2O refers to
One hydrogen molecule andtwo oxygen molecules.
A molecule that containsone hydrogen atom and two oxygen atoms.
A molecule that contains two hydrogen atoms and one oxygen atom.
Two hydrogen molecules andone oxygen molecule.
11
The anatomical term that indicates a structure close to the surface is
superficial.
superior.
proximal.
anterior.
12
The function of the nucleus is to
form mitochondria.
transfer energy.
provide cell shape.
direct the activities ofthe cell.
13
Which of the following organs is in the abdominal cavity?
The liver
The trachea
The heart
The thymus
14
One reason protein synthesis is important is that
proteins releaseenergy for metabolic reactions.
enzymes are proteins and enzymes are essential to metabolism.
proteins encode DNA sequences.
the diet does notprovide the building blocks of protein.
15
The elbow is distal to the wrist.
False
True
16
Osmosis is the movement of
any molecules from high to low concentration
ions from low pressure to high pressure regions
water molecules from high to low concentration
water molecules from low to high concentration
17
Lipids
all of these.
serve as long-termenergy storage molecules in the body.
are insoluble in water.
includephospholipids, cholesterol, and fats.
18
Nucleic acids include
proteins and DNA.
RNA and DNA.
enzymes and RNA.
steroids and triglycerides.
19
DNA
is a protein.
is routinely brokendown to provide cellular energy.
stores genetic information in the nucleus of the cell.
plays no role in thesynthesis of fats.
20
Homeostasis is the
inability to keep bodyweight within normal limits.
decrease in roomtemperature because a window is open.
ingestion of more food thanyou need to eat.
tendency of the body tomaintain a stable internal environment.
21
Which of the following is not organic?
Nucleic acids
Lipids
Enzymes
Sodium chloride
22
If a red blood cell is placed in a hypotonic solution,
the cell will shrink.
the cell will remain thesame size and shape.
the cell will swell and mayeventually burst.
concentrations in the cell do not change.
23
Which of the following groups of elements accounts for more than 95% of the human body by weight?
Calcium, hydrogen, oxygen, nitrogen
Calcium, phosphorus, hydrogen, nitrogen
Carbon, hydrogen, oxygen,nitrogen
Carbon, phosphorus, oxygen,hydrogen
24
Metabolism is defined as _____.
the taking in of nutrients
all the chemical reactionsoccurring in an organism that support life
the breakdown of substancesinto simpler forms
the removal of wastesproduced by chemical reactions
25
In all organisms, the basic unit of structure and function is
the macromolecule.
the cell.
the atom.
the molecule.
26
An enzyme is
usually a vitamin.
the genetic material.
a protein that promotes metabolic reactions by slowing reactions.
a molecule, usually a protein, that speeds the rate of a reaction.
27
The pH scale measures the
strength of anelectrical current that a solution carries
concentration ofhydrogen ions in solution which makes it acidic or basic.
number of moleculesof salts dissolved in water to form electrolytes.
number of hydroxide ions in water.
28
The three major parts of a composite cell are
the nucleus, cytoplasm, and cell membrane.
the nucleus,nucleolus, and nuclear envelope.
the endoplasmicreticulum, Golgi apparatus, and vesicles.
microtubules, ribosomes, and centrosomes.

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