Official Post-test October Sat Ii Biology Thread

Test Preparation
101

<p>For the circulation question, I am pretty sure that A, lying down prevents blood from returning to the heart. </p>

<p>Voluntary contraction is possible with the help of certain proteins. </p>

<p>Also, does anyone remember the answer to the 2nd question pertaining to the Protein Purification Experiment. "Changes that occured during this experiment" I picked increased enzyme activity.</p>

<p>Answers to last part of M section.</p>

<p>This demonstrates: Independent assortment
Black fur is dominant over brown fur.</p>

102

<p>btw, the question was about advantages of asexual reproduction, not sexual.</p>

103

<p>I hope you realize that discussing these questions is in violation of the new policy you agreed to when you signed your test booklet. The policy is now the same as the AP exams. You agree not to discuss the questions or reveal information about the questions.</p>

104

<p>You're going down, snitch!</p>

105

<p>crap, I think il bandito may be right. We can voluntarily contract our veins, and it's called an "augmentation maneuver." However, I also believe that lying down increases blood flow to the heart.</p>

106

<p>Flow of blood through veins if due to skeletal movement.. No movement = little/no flow.</p>

107

<p>Overall, do you guys think the test was easier or harder than what you expected?</p>

108

<p>"You are going down snitch" AHAHAHA! That was so funny! If it is in violation...crap! It's not like they reuse these questions da next test.</p>

109

<p>il bandito, if you searched up "lying down increases venous flow" on google, you'd find some articles agreeing with that claim. However, if you were to search the opposite "lying down decreases venous flow" you wouldn't find anything.</p>

110

<p>Social Pariah, the point is, the question asked which would decrease blood flow. I know that if you were to somehow manually contract the veins, your blood flow would definately go up. The only logical choice is lying down. This decreases blood pressure and flow.</p>

111

<p>for the consuming DNA from other animals or stuff what was the answer?</p>

<p>was it we digest the DNA and use it to make more DNA or make proteins or what?</p>

112

<p>lying down doesn't seem like the logical choice though. When standing up, the venous blood has to fight against the force of gravity in order to return to the heart. However, when lying down or reclining, the venous blood does not have to counter the force of gravity, and thus, blood flow to the heart is increased.</p>

113

<p>yes Jeffman, i believe you are correct.</p>

114

<p>How do you guys think the curve will be?</p>

115

<p>so social is the DNA we eat from other animals to make
A) More DNA?
or
B) More Protiens?</p>

116

<p>more DNA is the answer. Proteins aren't made from nucleotides.</p>

117

<p>yes but lying down you do not contract any skeletal muscles ...the very way the blood makes it back. This is why your leg might fall asleep due to bad circulation. The veins do tho have valves to prevent downfall of blood.</p>

118

<p>Possible with 4, but it will probably be around 780. I first took the test in January (3/5 through AP), got a 720 with at least 5 questions wrong. I retook it in June and got an 800 with at least two wrong. The curve is always nice.</p>

119

<p>Um..that's not a nice curve you say there! :(</p>

120

<p>I am hoping for like 75/80 being an 800. That would rock so hard.</p>