Biology Test B Flashcards
The hormone progesterone
prepares the uterus for implantation of the zygote.
Cerebellum damage will most likely
impair coordination and equilibrium.
The cerebellum is involved in fine motor coordination, balance and equilibrium.
In the adult human, RBC are..
non-uncleared and cannot repair themselves.
RBC are produced in the bone marrow. They lose their nucleus to make room for more hemoglobin so they can not reproduce, repair themselves or make proteins.
Portal systems
are unusual circulatory arrangements in the body in which there are two interconnected capillary beds.
Which cell does not have DNA
Erythrocyte
Which of the following is not a steroid? A. Chloresterol B. Vitamin D C. Testosterone D. Carotene E. Cortisol
Carotene. is an orange plant pigment that is the precursor of Vitamin A.
What yields 4 calories/gram when consumed?
Carbohydrates such as glucose and maltose and proteins yield 4 calories per gram consumed.
What influences the rate of an enzyme-caralyzed reaction?
Substrate concentration, temperature, enzyme concentration, pH.
What is PGAL?
PGAL ( Gluceraldehyde 3-Phosphate) us generally considered the prime end-product of photosynthesis and it can be used as an immediate food nutrient, combined and rearranged to form monosaccharide sugars such as glucose, which can be transported to other cells or packed for storage as insoluble polysaccharides such as startch.
Cell division
Multicellular organisms is a way for multicellular organisms to grow, develop and repair.
For Unicellular organisms cell division is a means of reproduction.
How many ATP are produced from 2 molecules of glucose using only substrate-level phosphorylation?
8
Very early in embryonic development, each cell still has the ability to develop into a complete organism. These cells are the result of
Indeterminate cleavage.
According to modern evolutionary theory, chloroplast probably descended from
free-living autotrophs.
what does not occur immediately after birth?
pressure in both the inferior vena cava and the right atrium increases.
what is imprinting ?
process in which environmental patterns or objects presented to a developing organism during a brief “critical period” in early life become accepted permanently as elements of their behavior environment.
