#Question id: 4495
#Unit 3. Fundamental Processes
_ elements can block this spreading, protect genes from both indiscriminate activation and repression.
#Question id: 2240
#Unit 2. Cellular Organization
In which of the following cases is energy NOT needed for transmembrane transport?
a. Lysine moves into the cell against its concentration gradient via the Na+/lysine symporter.
b. Potassium ions (K+) move out of the cell down the K+ concentration gradient via potassium channels.
c. Glucose moves into the cell down its concentration gradient via a glucose uniporter.
d. Sodium ions (Na+) move out of the cell down the Na+ concentration gradient via sodium channels.
Which of the following are correct?
#Question id: 11797
#Unit 6. System Physiology – Plant
A living cytoplasmic connection penetrate the walls between sieve tube elements and their companion cells; which are often complex and branched on the companion cell side, known as
#Question id: 10854
#Unit 10. Ecological Principles
Which of the following is an example of a hemiparasite?
#Question id: 1648
#Unit 4. Cell Communication and Cell Signaling
The complementarity determining regions (CDRs):