APHY 101 MIDTERM CH. 1-6 EXAM
2027 WITH 120 QUESTIONS AND
EXPERTVERIFIED CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED PASS
How are acid and bases represented on the pH scale? - ANSWER-Any pH number
greater than 7 is considered a base and any pH number less than 7 is considered an
acid. 0 is the strongest acid and 14 is the strongest base.
How do hydrogen ion concentrations change as the numbers change? - ANSWER-
As the hydrogen concentration increases, the pH decreases
What is Acidosis? Alkalosis? - ANSWER-Acidosis = pH less than 7.35
Alkalosis =pH rise in the blood
What distinguishes an organic compound from an inorganic compound? -
ANSWER-Organic compounds result from the activity of living beings, whereas
,inorganic compounds are either the result of natural processes unrelated to any life
form or the result of human experimentation in the laboratory
Give examples and characteristics of the 4 types of Organic Molecules -
ANSWER-1) Carbohydrate: Immediate source of energy for organisms. Ex:
Monosaccaharides, simple sugars.
2) Lipids: Stored energy for later use in organisms, insulation, and protection of
delicate organs. Ex: Fats, oils, triglycerides.
3) Protein: Organic catalysts, digestive enzymes, structural protein in hair,
structural protein in skin. Ex: Enzymes, collagen, keratin.
4) Nucleic Acids: Carries Genetic Info and synthesizes proteins. Ex: DNA, RNA
What is the difference between a saturated and an unsaturated fat? - ANSWER-
Saturated fats contain only saturated fatty acids, whereas unsaturated fats contain
at least 1 unsaturated fatty acid
How are the levels (primary, secondary, tertiary, and quaternary) of structure of a
protein created? - ANSWER-Primary is the amino acid sequence of the
polypeptide chain.
Secondary is formation of an alpha helix or a beta-pleated sheet.
Tertiary is the folding of the secondary structure.
Quaternary forms when several polypeptide chains connect to form a very large
protein
What are three major parts of a cell? - ANSWER-Nucleus, cytoplasm, and cell
membrane
, What are organelles? - ANSWER-Small structures found floating in the cytoplasm
along with the nucleus that help with cellular processes
Describe the basic structure of the cell/plasma membrane - ANSWER-
What is meant by a "selectively permeable membrane" - ANSWER-Only certain
substances are able to pass through the cell membrane
Explain the difference between the study of Anatomy and the study of Physiology -
ANSWER-Anatomy is the study of structure of body parts/Physiology is the study
of function of body parts
Name and define the levels of organization of life - ANSWER-Organelles, cells,
tissues, organs, and organ systems
Define Metabolisim - ANSWER-The sum of all physical and chemical events that
obtain, release, and utilize energy
Define Homeostasis. How does a homeostatic mechanism maintain homeostasis? -
ANSWER-The body's maintenance of a stable internal environment.
Depend on normal concentrations of water, nutrients, and oxygen, and normal
body temperature and pressure
What is meant by negative feedback? How does negative feedback affect
homeostatic mechanisms? - ANSWER-Works to correct a deviation from a set
point (Tries to get back to the set point/normal)
2027 WITH 120 QUESTIONS AND
EXPERTVERIFIED CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED PASS
How are acid and bases represented on the pH scale? - ANSWER-Any pH number
greater than 7 is considered a base and any pH number less than 7 is considered an
acid. 0 is the strongest acid and 14 is the strongest base.
How do hydrogen ion concentrations change as the numbers change? - ANSWER-
As the hydrogen concentration increases, the pH decreases
What is Acidosis? Alkalosis? - ANSWER-Acidosis = pH less than 7.35
Alkalosis =pH rise in the blood
What distinguishes an organic compound from an inorganic compound? -
ANSWER-Organic compounds result from the activity of living beings, whereas
,inorganic compounds are either the result of natural processes unrelated to any life
form or the result of human experimentation in the laboratory
Give examples and characteristics of the 4 types of Organic Molecules -
ANSWER-1) Carbohydrate: Immediate source of energy for organisms. Ex:
Monosaccaharides, simple sugars.
2) Lipids: Stored energy for later use in organisms, insulation, and protection of
delicate organs. Ex: Fats, oils, triglycerides.
3) Protein: Organic catalysts, digestive enzymes, structural protein in hair,
structural protein in skin. Ex: Enzymes, collagen, keratin.
4) Nucleic Acids: Carries Genetic Info and synthesizes proteins. Ex: DNA, RNA
What is the difference between a saturated and an unsaturated fat? - ANSWER-
Saturated fats contain only saturated fatty acids, whereas unsaturated fats contain
at least 1 unsaturated fatty acid
How are the levels (primary, secondary, tertiary, and quaternary) of structure of a
protein created? - ANSWER-Primary is the amino acid sequence of the
polypeptide chain.
Secondary is formation of an alpha helix or a beta-pleated sheet.
Tertiary is the folding of the secondary structure.
Quaternary forms when several polypeptide chains connect to form a very large
protein
What are three major parts of a cell? - ANSWER-Nucleus, cytoplasm, and cell
membrane
, What are organelles? - ANSWER-Small structures found floating in the cytoplasm
along with the nucleus that help with cellular processes
Describe the basic structure of the cell/plasma membrane - ANSWER-
What is meant by a "selectively permeable membrane" - ANSWER-Only certain
substances are able to pass through the cell membrane
Explain the difference between the study of Anatomy and the study of Physiology -
ANSWER-Anatomy is the study of structure of body parts/Physiology is the study
of function of body parts
Name and define the levels of organization of life - ANSWER-Organelles, cells,
tissues, organs, and organ systems
Define Metabolisim - ANSWER-The sum of all physical and chemical events that
obtain, release, and utilize energy
Define Homeostasis. How does a homeostatic mechanism maintain homeostasis? -
ANSWER-The body's maintenance of a stable internal environment.
Depend on normal concentrations of water, nutrients, and oxygen, and normal
body temperature and pressure
What is meant by negative feedback? How does negative feedback affect
homeostatic mechanisms? - ANSWER-Works to correct a deviation from a set
point (Tries to get back to the set point/normal)
