Biomed review

Question 1

What do we need to know about the nucleus?

Answer 1

Double membrane That is continuous w Er inner membranes supported thru lamins.

Question 2

Heterchromatin ls…

Answer 2

Unusable, inactive condensed chromatin

Question 3

Euchromantin is…

Answer 3

’ Uncondensed, active genes

Question 4

PeroxiSome’s do what kinds of things?

Answer 4

Oxidize organic substrate through beta oxidation, also by synthesizing plamalagens finally, reduction of ros

Question 5

Broadly explain the four Steps in ATP synthesis in mitochondria

Answer 5

Step 1; occurs in cytoplasm, glucose gets converted to private and short chain fatty acids are converted to fatty coA.
Step 2. Pyruvate and fatty acids beta oxidized into acetyl Co A
Step 3 Acetyl CoA goes into citric acid cycle and produces Co2, FadH2, NadH and enters the ETC to reduce O2.
4. Protons are taken into inter membrane matrix to drive ATP synthase to make ATP.

Question 6

What ph do lysosomal hydrolases perform in?

Answer 6

5

Question 7

Endo membrane System

Answer 7

1. Er- protein gets made
2. Cis Golgi - post translational modification of glycosolation to make proteins more stable and active.
3. Zip codes are packaged in trans golgi and packages are sent to lysosomes.