Random Questions

Question 1

What is the difference between white and brown adipose tissue?

Answer 1

Brown - less common type of fat that is thermogenic

White - most abundant and non-thermogenic

Question 2

What occurs during meiosis 1 vs meiosis 2?

Answer 2

Meiosis 1 - homologue pairs separate

Meiosis 2 - sister chromatids separate

Question 3

What is crossing over?

Answer 3

Points where homologues cross over and exchange genetic material - more or less random

Question 4

What is fermentation?

Answer 4

Breaking down of glucose in the absence of oxygen

Process of reducing pyruvate to either ethanol or lactate to regenerateNAD+ from NADH

Question 5

What are two examples of the fermentation process?

Answer 5

Reduction of pyruvate to ethanol (alcohol fermentation)

Reduction of pyruvate to lactate en human muscle cells

Question 6

What are the steps of alcohol fermentation?

Answer 6

Step #1: removes a carboxyl group from pyravate that produces acetaldehyde
Step #2: NADH passing its electrons to acetyldehyde which regenerates NAD+ and forms ethanol
*alcohol dehydrogenase is the enzyme that converts acetaldehyde to ethanol

Question 7

What is lactic acid fermentation?

Answer 7

When oxygen supplies are running low, many prokaryotes and eukaryotes use lactic acid fermentation to regenerate NAD+
* lactate dehydrogenase is the enzyme that catalyzes this process converting pyruvate to lactate