Questions about fat

[jolileia]

We have two kind of fat tissues: white adipose tissue and brown adipose tissue. The white adipose tissue stores and save energy to use later, but the brown adipose tissue uses and generate it to heat. Most of the time, women have more brown fat than men. Their body temperature, hence, is higher than males.
Beside brown adipose tissue, which derives its color from rich vascularization and densely packed mitochondria, is found in various locations of the animal. In hibernating animals and neonates, brown adipose tissue is important for regulating body temperature via non-shivering thermogenesis.

[MrMistery]

Hmm... from what i knew brown adipose tissue is only degraded in emergency cases, so having more of it wouldn't affect your body temperature

Here's a question for you: how can the brown addipose cell produce only heat and no ATP from the oxidation of lipids? What is the mechanism that drives this process?

[jolileia]

Hi Mr. Mistery
I dont think that the brown fat tissue is used only in emergency cases, and yeah, it is not making any ATP only generate heat for the body, and so having a lot of it may increase the human temperature.

[VeenaandNivyah]

No the thing about temperature is not true. But yes, generally men have more muscle mass than women.

Actually, I don't think that is true. I mean, an athletic woman would ceratinly be more well-built than a small guy of the same age. It's not the gender, but the work-out that makes the difference. In school, we had this lesson which said that male requirement for food is more than that of a woman. My teacher asked us to strike it out as she said it's not applicable to modern times. Probably back in the days of yore, when men went out to work in field and women stayed back home to cook. Nowadays, I'd say Sania Mirza(Tennis Player) and Karnam Malleshwari (Woman Heavy-weight Champion) would certainly be more muscular than you or me. Well, so I say, men needn't NECCESSARILY have more muscle mass than women.
Atleast I hope I'm right.
Thanx,
VeenaandNivyah

That's why I said "generally". I was talking about a man and a woman who are in the same conditions.

@Andrew:
I don't think I've understood.

Sorry.... guess i got a little hot under the collar.

VeenaandNivyah