A. Gross primary production
B. Net primary production
C. Gross primary production minus respiratory loss
D. Both b and c
Show AnswerAnswer = Option D
MCAT Biology
Gross primary production is
A. Amount of energy fixed by small plants
B. Amount of energy fixed by large plants
C. Total amount of energy fixed by all plants \
D. Primary production minus respiratory loss
Show AnswerAnswer = Option C
Oxidation of ammonia or ammonium ions by bacteria in soil is called
A. Nitrification
B. Ammonification
C. Assimilation
D. Denitrification
Show AnswerAnswer = Option A
Nitrogen constitutes about ______ % of atmosphere
A. 58%
B. 25%
C. 10%
D. 78%
Show AnswerAnswer = Option D
Number of nuclear pores/nucleus in an RBC are
A. 1?3
B. 3?4
C. 10000
D. 30000
Show AnswerAnswer = Option B
Which of the following impart a red colour to Rose petals?
A. Chloroplast
B. Chlorophyll
C. Chromoplast
D. Leucoplast
Show AnswerAnswer = Option C
On which of the following component of chloroplast chlorophyll is arranged?
A. Cell membrane
B. Matrix
C. Thylakoids
D. Stroma
Show AnswerAnswer = Option C
Chlorophyll molecule contrains ________ as central metal ion.
A. Fe2+
B. Mg2+
C. Zn2+
D. Cu2+
Show AnswerAnswer = Option B
Which of the following combination is an example of self replicating organelles?
A. Mitochondria Ribosomes
B. Mitochondria Nucleus
C. Mitochondria Chloroplast
D. Mitochondria Vacuole
Show AnswerAnswer = Option C
The stent energy in the form of ADP is regenerated by mitochondria into:
A. AMP
B. ADP
C. ATP
D. All of these
Show AnswerAnswer = Option C