Which characteristic is associated with a benign tumor?
a. rapid growth
b. poor cell differentiation
c. expansion within the same tissue
d. severe dysplasia
e. metastasis
ANSWER: c
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Match the essential nutrient category with the probable effects a deficiency might cause.
1. Muscle loss, weakened immune system. 2. Hair loss, dry skin. 3. Muscle weakness, weight loss. a. Fats b. Carbohydrates c. Proteins
Which of the following is TRUE of a morphogen? It is a signaling molecule that
A. is required for cell-to-cell contact within the embryo. B. induces the differentiation of cells within the embryo. C. induces blastulation of the developing embryo. D. induces implantation of the embryo into the uterus of mammals. E. that separates out cytoplasmic factors to their respective cells within the developing embryo.
You find yourself standing next to a beautiful rose bush. Which of the following do you and the rose have in common?
A) You both are multicellular. B) You both lack a membrane-bound nucleus. C) You are both prokaryotic. D) You and the rose have nothing in common.
Which occurs only in anaerobic metabolism of glucose?
A. lactate fermentation B. acetyl CoA formation C. citric acid cycle D. oxidative phosphorylation E. glycolysis