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Q:

During the light reactions of photosynthesis

During_the_light_reactions_of_photosynthesis1553000283.jpg image

A) the energy from sunlight is absorbed by the pigment chlorophyll B) the water are obserbed by roots
C) the sunlight is reflected by the leaf pigments D) All the above
 
Answer & Explanation Answer: A) the energy from sunlight is absorbed by the pigment chlorophyll

Explanation:

During the light reactions of photosynthesis the energy from sunlight is absorbed by the pigment chlorophyll present in the chloroplasts of the leafs.

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Q:

Which organelle performs cellular respiration?

A) mitochondria B) cytolasm
C) chloroplasts D) All of the above
 
Answer & Explanation Answer: A) mitochondria

Explanation:
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Q:

Lysogeny can result in all of the following except

A) Acquisition of new characteristics by the host cell B) Transduction of specific genes
C) Immunity to reinfection by the same phage. D) Immunity to reinfection by any phage
 
Answer & Explanation Answer: D) Immunity to reinfection by any phage

Explanation:

Lysogeny can result in all of the following except Immunity to reinfection by any phage. Lysogeny means phage DNA is incorporated in Host cell DNA. 

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Q:

Slow oxidative muscle fibers are best suited for

A) Hitting football B) Heavy workout in the gym
C) Running a marathon D) None of the above
 
Answer & Explanation Answer: C) Running a marathon

Explanation:

The three types of muscle fibers are slow oxidative (SO), fast oxidative (FO) and fast glycolytic (FG). Slow oxidative fibers use aerobic metabolism to produce low power contractions over long periods and are slow to fatigue.

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Q:

What is the average Life span of RBC?

A) 120 days B) 99 days
C) 101 days D) 111 days
 
Answer & Explanation Answer: A) 120 days

Explanation:

The average Life span of RBC is 120 days.

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Q:

Which among the following do NOT have a perfect pair of sex chromosomes?

A) Only men B) Only women
C) Both men and women D) Neither men nor women
 
Answer & Explanation Answer: A) Only men

Explanation:
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Q:

Lymph carries digested and absorbed fat from ______.

A) lungs B) intestine
C) stomach D) kidney
 
Answer & Explanation Answer: B) intestine

Explanation:
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Q:

What is the function of chloroplast in a plant cell?

A) absorb nutrients from soil B) absorb water
C) absorb sunlight D) All of the above
 
Answer & Explanation Answer: C) absorb sunlight

Explanation:

Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant.

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