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BI110 Lecture Notes - Lecture 7: Dynein, Cell Membrane, Proteoglycan

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4 May 2017

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Myosin can link 2 microfilaments together (cid:862)walk(cid:863) alo(cid:374)g a (cid:373)icrofila(cid:373)e(cid:374)t *i(cid:373)porta(cid:374)t muscles contraction* Bacteria has all of these components and an extra component called mind-par a and for. Different green shades are a result of chloroplast movement in the cell and the way that the chloroplast move is from microfilaments. The chloroplasts receiving a lot of light will be light green (photoavoidance they move away from the light) The chloroplasts not receiving a lot of light will be dark green (move closest to the light bc they want it) Named by their size (microfilament = thin microtubules = thick intermediate = in between) They form intertwined networks of proteins (e. g. keratin) Dynein (motor protein atp needed to make these movements) links the microtubules together, allows them to slide back and forth over top of eachother. Extracellular matrix (ecm) stuff outside of an animal cell that holds stuff together.

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Related Questions

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.

membrane enclosed cell organelles

Question 5

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

plasma membrane

Question 6

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

bacterial ribosome

Question 9

The difference between the rough and smooth ER is

the rough produces lipids where as the smooth does not

the rough has many folds and convolutions where as the smooth does not

the rough has ribosome embedded and the smooth does not

the rough is closer to the cell membrane whereas the smooth is closer to the nucleus

Question 10

The site where many lipids, including cell membrane is produced.

Question 11

Name the organelle: In muscle cells in particular, I would increase in number and size in response to frequent exercise

Question 12

In animal cells, glucose would be mobilized from its storage molecule (glycogen) in this part of the cell.

Question 13

Which of these is associated with the rough ER

production of carbohydrates

production of steroid hormones

production of ATP

production of proteins that are secreted from the cell

Question 14

Which organelle sorts, modifies and stores substances produced on the rough ER. Write two words as the answer in lower case separated by a space.

Question 15

Which organelle is responsible for ATP production. Write one word in the singular as the answer.

Question 16

You inherit all of your mitochondria from your

half from your mother and half from your father

mother

Question 17

An organelle that contains chlorophyll

Question 18

Microtubules have a variety of roles, which of the options below is NOT one of them?

separate chromosomes

cilia and flagellum movement

tracks for organelle movement

constrict the cell during cell division

Question 19

Made of tubulin subunits

intermediate filaments

Question 20

Name the part of the cytoskeleton that is made of two twisted rods of actin. Write one word as the answer in lower case.

Question 21

Which part of the cytoskeleton is made of the same protein as your hair and nails?

Intermediate filaments

Question 22

The extracellular matrix is found outside of, but attached to the cell membrane?

Question 23

Which of the options below is an important function of the extra cellular matrix?

connecting cells together

regulate the movement of substances into and out of the cell

helping cells divide into two cells

keeping the cell in a fixed and ridged shape

Question 24

Which part of the cell wall has a high pectin content?

secondary cell wall

extracellular matrix

primary cell wall

Question 25

Plants have mitochondria, chloroplasts, a cell wall, and nuclei.

False

Question 27

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

Question 28

Animal cells have cell walls