Search found 67 matches

by dchen22
November 14th, 2021, 3:46 pm
Forum: 2022 Question Marathons
Topic: Cell Biology C
Replies: 8
Views: 4395

Re: Cell Biology C

1. Which two amino acids are the most unsuitable for alpha helices? Why? 2. An inhibitor binds to both the enzyme and the enzyme-substrate complexes equally. What type of inhibitor is it? 3. A sample of carbohydrate is extracted from a plant cell. Upon closer examination, it is formed from beta-link...
by dchen22
November 8th, 2021, 3:56 am
Forum: 2022 Question Marathons
Topic: Cell Biology C
Replies: 8
Views: 4395

Re: Cell Biology C

I'm glad I wasn't the only who thought I was studying the wrong things, haha!! Since no one's asked yet, I'll go! (I hope I'm studying the right things...) Starting off with the basics... 1. Which amino acids are known as alpha helix breakers? 2. What is the theory that explains the origin of chlor...
by dchen22
September 22nd, 2021, 5:34 pm
Forum: 2022 Question Marathons
Topic: Anatomy and Physiology B/C
Replies: 22
Views: 9857

Re: Anatomy and Physiology B/C

1. Why do humans have a blind spot? 2. Which ancestral mammal bone did the malleus ossicle evolve from? 1. Since the area where the optic nerves connect with the retina has no light-sensitive cells, humans therefore cannot see anything there. 2. neural crest-derived mesenchyme of the first and seco...
by dchen22
September 22nd, 2021, 4:39 am
Forum: 2022 Question Marathons
Topic: Anatomy and Physiology B/C
Replies: 22
Views: 9857

Re: Anatomy and Physiology B/C

1. Why do humans have a blind spot?
2. Which ancestral mammal bone did the malleus ossicle evolve from?
by dchen22
September 20th, 2021, 12:08 pm
Forum: 2022 Question Marathons
Topic: Anatomy and Physiology B/C
Replies: 22
Views: 9857

Re: Anatomy and Physiology B/C

Thank you! Still on neuro lol, 1. Whats an easy analogy for the myelin sheath's relation to the neuron axon? Why? 2. What is one substance that can cross the blood brain barrier? What gives it the ability to do so? 3. Acetylcholine a common neurotransmitter found at neuromuscular junctions? What ma...
by dchen22
January 17th, 2021, 4:26 am
Forum: 2021 Study Events
Topic: Fossils B/C
Replies: 32
Views: 13406

Re: Fossils B/C

Does anyone have any tips for distinguishing between H. erectus and H. neanderthalensis?
by dchen22
April 27th, 2020, 1:58 pm
Forum: 2020 Question Marathons
Topic: Fossils B/C
Replies: 98
Views: 34426

Re: Fossils B/C

1. When did land plants first appear?
2. What were adaptations that plants needed to colonize the land?
3. Describe the alternation of generations.
by dchen22
April 24th, 2020, 3:22 pm
Forum: 2020 Question Marathons
Topic: Fossils B/C
Replies: 98
Views: 34426

Re: Fossils B/C

Revival (sorry for the double post...): 1. ID this specimen: https://www.foraminifera.eu/singimg/cibicides-cf-dutemplei-waldlaubersheim.jpg 2. What is its temporal range? 3. What kind of life was it adapted for? 4. ID this specimen: https://encrypted-tbn0.gstatic.com/images?q=tbn%3AANd9GcTV7NSTXGMX...
by dchen22
April 12th, 2020, 3:03 pm
Forum: 2020 Study Events
Topic: Fossils B/C
Replies: 217
Views: 146244

Re: Fossils B/C

Have any of you seen non-leaf fossils of Populus on tests?
by dchen22
April 8th, 2020, 9:02 am
Forum: 2020 Study Events
Topic: Fossils B/C
Replies: 217
Views: 146244

Re: Fossils B/C

That particular specimen only has 3 points at the end of the leaf. I have never seen an acer with less than 5. It's definitely not surefire, but that's my last resort before guessing between the 2. I’ve seen Acer with three lobes but I’ve only ever seen Platanus with five lobes. I don’t think there...

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