Predict which of the following lipid characteristics would be most important to form the best liposomes for delivering a drug into a cell
A) It contains a carbon ring structure similar to that in cholesterol.
B) It is linked to mannose
C) It is short and polar like glycerol.
D) It is amphipathic.
E) It has three fatty acid chains like a triglyceride.
Answer: D
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How do bryophytes survive extreme dehydration without damage to their tissues?
A. They use roots to extract water from the soil. B. They use vascular tissue to transport water. C. They are able to dry out and resume photosynthesis at a later time. D. They do not have a mechanism to survive extreme dehydration. E. They are able to store water in specialized tissues in their leaves.
Using the table, into which group would you classify a virus with single-stranded DNA capable of converting to double-stranded before transcription takes place?
a. Group VI
b. Group III
c. Group II
d. Group V
In the accompanying figure, the formation of eggs would occur in the structure labeled as ____
a. 1
b. 5
c. 6
d. 9
e. 10
What is the function of the generative cell in conifers?
A. Maturation of the female cone B. Dispersal of the pollen C. Formation of the sperm D. Growth of the megaspore E. Production of the archegonium