pharateprajakta

In E. coli an enzyme, nitrate reductase, is found in the electron transport chain. The enzyme transfers an electron to nitrate (NO3) instead of oxygen. What type of pathway is this? A. Aerobic respiration B. Anaerobic respiration C. Fermentation D. Oxidative dephosphorylation

In the absence of oxygen, some bacteria produce ATP using a pathway in which an organic molecule is the final acceptor. This type of metabolic pathway is called which of the following?

A. anaerobic fermentation

B. anaerobic respiration

C. aerobic respiration

D. anoxygenic photosynthesis

Erythroblastosis fetalis always occurs in the firstpregnancy.

True

False

Which of the following hormones binds to a receptor tyrosinekinase?

Erythroblastosis foetalis is caused when fertilization takes place between gametes of

(a) Rh female and Rh+ male

(b) Rh+ female and Rh– male

(c) Rh+ female and Rh+ male

(d) Rh~ female and Rh– male.

In which one of the following do the two names refer to one and the same thing?

(a) Krebs cycle and Calvin cycle

(b) tricarboxylic acid cycle and citric acid cycle

(c) citric acid cycle and Calvin cycle

(d) tricarboxylic acid cycle and urea cycle

1. The transport of molecules of a particular solute from inside an animal cell across the cell membrane to the extracellular fluid always requires energy when _____.

The bacterium (Clostridium botulinum) that causes botulism is

(a) an obligate aerobe

(b) a facultative anaerobe

(c) an obligate anaerobe

(d) a facultative aerobe

What causes botulism

We see by 

A. Ears 

B. Eyes 

C. Nose 

D. Nails

How is the embryo sac formed?

During photo synthesis, plants converts lights energy to chemical energy This is an example of

Which plants convert trash into energy? plants convert trash into energy. The energy produced is known as