Once solid material is phagocytized and taken into a vacuole, which of the following statements best describes what happens?
A) A ribosome enters the vacuole and uses the amino acids in the "invader" to form new protein.
B) A lysosome combines with the vacuole and digests the enclosed solid material.
C) The vacuole remains separated from the cytoplasm and the solid material persists unchanged.
D) Nitrogen enters the vacuole and "burns" the enclosed solid material.
B) A lysosome combines with the vacuole and digests the enclosed solid material.
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A typical ejaculation releases approximately ________ sperm
A) 1 million B) 250 million C) 100,000 D) 20 million E) 800 million
Mrs. Phang, eight months pregnant with her first child, makes an appointment with her obstetrician to investigate the cause of vaginal bleeding. Because it is actually more "spotting" than frank bleeding, and painless, she is becoming worried
Ultrasound visualization of her abdomen shows that the placenta is formed across the internal os of the cervix, and she is ordered to her bed for the remainder of the pregnancy. What name is given to Mrs. Phang's condition? Why is it an extremely serious condition? Why was she ordered to have complete bed rest for the remainder of her pregnancy? What will be an ideal response
One reason protein synthesis is important is that
A) proteins release energy for metabolic reactions. B) the diet does not provide the building blocks of protein. C) enzymes are proteins and enzymes are essential to metabolism. D) proteins encode DNA sequences.
The spinal curvature that develops as a child learns to walk shifts the trunk weight over the legs. It is an example of a ________ curve.
A. secondary B. primary