The folding of proteins occurs via the formation of weak ________ and ________ bonds between amino acids. Much stronger covalent bonds like ________ bonds can occur between ________ amino acids.
Fill in the blank(s) with the appropriate word(s).
hydrogen, ionic, disulfide, cysteine
Anatomy & Physiology
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Muscle contractions of the uterine walls and ________ in the semen aid sperm cell
movement through the uterus and uterine tubes. A) prostaglandins B) estrogen C) progestins D) epinephrine
Anatomy & Physiology
The nasal and oral cavities both lead to the
A) trachea. B) larynx. C) esophagus. D) pharynx. E) uvula
Anatomy & Physiology
Fertilization normally occurs within which structure?
a) Ovary b) Fallopian tube c) Ovarian ligament d) Body of uterus e) Vagina
Anatomy & Physiology
The entire area through which the sensitive ends of the receptor cells are distributed is the
A. stimulus area. B. sensory field. C. transducer field. D. receptive field. E. adaptative radius.
Anatomy & Physiology