MASTERING BIO 253 EXAMS: A+ GRADED GUIDE WITH
LATEST QUESTIONS AND ANSWERS.
Negative feedback
- Most common in body
- Effectors return conditions to normal
- Shuts off when normal state is reached, counters/corrects something
- Long-lived
- Think furnace thermostat
- BP, glucose, temp, hormones
Positive feedback
- Change is intensified, keeps stimulating until homeostasis is reached
- Can produce unstable conditions in the beginning
- Short-lived
- Labor, blood clotting, sneezing
Anatomical position
To stand erect facing forward with arms at the sides and palms of the hands turned forward with feet
flat on the floor
Anterior/Ventral
Front
Posterior/Dorsal
Back
Superior
Top
Inferior
Bottom
Medial
Middle
Lateral
Away from the midline
,Bilateral
Both sides
Ipsilateral
Same side
Contralateral
Opposite side
Proximal
Closer to the point of attachment
Distal
Away from the point of attachment
Superficial
Near the surface
Deep
Away from the surface
Sagittal plane
Divides body into left and right
Transverse plane
Divides body into top and bottom
Coronal plane
Divides body into front and back
Abdominal regions: both upper right and left
Hypochondriac
Abdominal regions: upper middle
Epigastric
Abdominal regions: middle right and left
Lateral
Abdominal regions: middle
Umbilical
Abdominal regions: lower right and left
, Inguinal
Abdominal regions: lower middle
Pelvic
Cation
- Positively charged
- Loses electron to become stable
Anion
- Negatively charged
- Gains electron to become stable
Ionic bond
- Strong
- Will lose or gain electrons
- Salt
Covalent bond
- Strong
- Shares electrons
- Polar, nonpolar
- Gases, H2O
Organic molecules
- C & H are directly attached
- Carbs, lipids, protein, nucleic acids
Inorganic molecules
- Does not have C & H both
- HCO3 (Bicarb), H2O, O2, CO2, Salt
Carbs
- Glucose
- Main source of energy
Lipids
- Fatty acids
- Triglycerides
Proteins
LATEST QUESTIONS AND ANSWERS.
Negative feedback
- Most common in body
- Effectors return conditions to normal
- Shuts off when normal state is reached, counters/corrects something
- Long-lived
- Think furnace thermostat
- BP, glucose, temp, hormones
Positive feedback
- Change is intensified, keeps stimulating until homeostasis is reached
- Can produce unstable conditions in the beginning
- Short-lived
- Labor, blood clotting, sneezing
Anatomical position
To stand erect facing forward with arms at the sides and palms of the hands turned forward with feet
flat on the floor
Anterior/Ventral
Front
Posterior/Dorsal
Back
Superior
Top
Inferior
Bottom
Medial
Middle
Lateral
Away from the midline
,Bilateral
Both sides
Ipsilateral
Same side
Contralateral
Opposite side
Proximal
Closer to the point of attachment
Distal
Away from the point of attachment
Superficial
Near the surface
Deep
Away from the surface
Sagittal plane
Divides body into left and right
Transverse plane
Divides body into top and bottom
Coronal plane
Divides body into front and back
Abdominal regions: both upper right and left
Hypochondriac
Abdominal regions: upper middle
Epigastric
Abdominal regions: middle right and left
Lateral
Abdominal regions: middle
Umbilical
Abdominal regions: lower right and left
, Inguinal
Abdominal regions: lower middle
Pelvic
Cation
- Positively charged
- Loses electron to become stable
Anion
- Negatively charged
- Gains electron to become stable
Ionic bond
- Strong
- Will lose or gain electrons
- Salt
Covalent bond
- Strong
- Shares electrons
- Polar, nonpolar
- Gases, H2O
Organic molecules
- C & H are directly attached
- Carbs, lipids, protein, nucleic acids
Inorganic molecules
- Does not have C & H both
- HCO3 (Bicarb), H2O, O2, CO2, Salt
Carbs
- Glucose
- Main source of energy
Lipids
- Fatty acids
- Triglycerides
Proteins
