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