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Q:

ATP is a compound that is synthesized when

A) digestive enzymes break amino acids into smaller pieces B) energy stored in nitrogen is released froming amino acids
C) energy is stored in chemical bonds is released during cellular respiration D) chemical bonds between carbon atoms are formed by during photo synthesis
 
Answer & Explanation Answer: C) energy is stored in chemical bonds is released during cellular respiration

Explanation:
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Q:

What process immediately preceeded protein synthesis at the ribosome?

A) transcription B) replication
C) translation D) duplication
 
Answer & Explanation Answer: A) transcription

Explanation:

Protein synthesis at the ribosome is immediately preceeded by the transcription process.

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Q:

Man has _____ pairs of salivary glands

A) 3 B) 4
C) 6 D) 8
 
Answer & Explanation Answer: A) 3

Explanation:

Salivary glands of man are 3 pairs = 6. They are one pair of parotid glands, one pair of sub-maxillary or sub-mandibular glands and one pair of sub-lingual glands.

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Q:

The limbic system structure that regulates hunger is called the

A) Hypothalamus B) Cerebellum
C) Pituitary gland D) Cerebrum
 
Answer & Explanation Answer: A) Hypothalamus

Explanation:

the_limbic_system_structure_that_regulates_hunger_is_called_the1545974338.png image

 

The hypothalamus which is near the pituitary gland is a small region located at the base of the brain. The hypothalamus plays a crucial role in many important functions including releasing hormones, regulating body temperature, regulates hunger etc...

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Q:

The inherited traits of an organism are controlled by

A) DNA B) Enzymes
C) Nucleotides D) RNA
 
Answer & Explanation Answer: A) DNA

Explanation:

The inherited traits of an organism are controlled by DNA molecules.

 

The traits an organism displays are ultimately determined by the genes it inherited from its parents, in other words by its genotype. Animals have two copies of all their chromosomes, one from each parent.

 

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Q:

Meiosis starts with a single diploid cell and produces 4 haploid cells.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

A cell undergo meiosis, and it produces 4 haploid cells from a single diploid cell.


 


Hence, the given statement is true.

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Q:

Which organelle is the control center of a cell?

A) Nucleus B) Cytoplasm
C) Cell membrane D) endoplasmic reticulum
 
Answer & Explanation Answer: A) Nucleus

Explanation:

Nucleus serves as the control center for cell metabolism and reproduction.

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Q:

Which formula represents an amino acid?

A) R-CH3(NH2)-COOH B) R-CH(NH2)-COOH
C) R-CH2(NH2)-COOH D) R-CH3(NH2)-COH
 
Answer & Explanation Answer: B) R-CH(NH2)-COOH

Explanation:

Amino acids are the building blocks of proteins. There are about 21 essential amino acids in the human body like histidine, leucine, lysine... The general formula for amino acid is R-CH(NH2)-COOH.

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