BIO 122 Study Guide - Midterm Guide: Oxidative Phosphorylation, Light-Dependent Reactions, Extracellular Matrix

7 questions could use some help on for Molecular Biology. Pleasehelp. Just answers will do (I'll figure out), but wouldn't mindexplanations. If answered correctly 5 star guarantee & goodattempt definite 'best answer'. Thanks!

Question1

Which of the following cytoskeletal components is thelargest?

1. Microtubules

2. Microfilaments (actin)

3. Intermediate filaments

Question2

During mitosis, all microtubules emanate from the centrosome.Therefore, the centrosome is an example of:

1. a microtubule organizing center (MTOC)

2. A +TIP protein

3. A catastrophin

4. A monomer sequestering protein

Question3

Tubulin is a G-protein. It can stabilize microtubules when boundto which of the following?

1. GDP

2. GTP

3. Either GTP or GDP

4. Neither GTP nor GDP

Question4

In the formation of microtubules, dimers are built when analpha-tubulin protein binds to a beta-tubulin protein. This is anexample of what level of protein structure?

1. Primary structure

2. Secondary structure

3. Tertiary structure

4. Quartenary structure

Question5

Different tissues in the body express slightly differentversions of alpha tubulin. Which of the following could lead toslightly different alpha-tubulin molecules with a modified proteinsequence?

1. One tissue has more DNA methylation upstream of thealpha-tubulin gene.

2. One tissue has more miRNAs produced than the other.

3. One tissue uses different splice sites than the other.

4. One tissue has different trans-elements than the other.

Question6

1. How is confocal microscopy different from traditionalfluorescent microscopy?

2. The molecules are labelled red instead of green.

3. The molecules are observed over time.

4. The molecules are observed in many thin planes, which are thenstacked together to create a crisper image.

5. The confocal microscope has higher objective power than regularfluorescent microscopes.

Question7

Taxol is a chemotherapy drug that permanently stabilizesmicrotubules and prevents their degradation. Describe howmicrotubules are typically destroyed and why permanentstabilization would kill dividing cells. Note: you may need toreview the basics of cell mitosis from a previous course.

i need help with this homwork please choose the correct answers and just be claer to read and understand for the slect the apply qusestions too and it is important i realy need the right answers so please be claer not write randomly i really need the correct answers to study for my test so hop you can help me

Question 1

What is the smallest cell you could find?

Question 2

TEMs appear as 3D images

Question 3

Bacteria are what cell type? Write one word as the answer in lowercase and using no syntax.

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Question 42 pts

ALL eukaryotic cells have which of the following. Click all that apply.

Question 5

Prokaryotes and eukaryotes both have which if the following cellular components. Click all that apply.

Question 6

I am made of one 60s and one 40s subunit, which organelle am I?

Question 27

What accounts for 40% of the protein in our bodies?

Question 28

Animal cells have cell walls