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Q:

Which of the following is NOT a constituent of xylem?

A) Tracheids B) Companion cells
C) Vessels D) Xylem parenchyma
 
Answer & Explanation Answer: B) Companion cells

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Q:

What is the name of a group of similar cells performing a specific function?

A) Tissue B) Organ
C) Organ system D) Cellular organization
 
Answer & Explanation Answer: A) Tissue

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Q:

The deficiency of Niacin­a vitamin of B complex group causes the disease _____

A) Marasmus B) Pellagra
C) Rickets D) Night­-blindness
 
Answer & Explanation Answer: B) Pellagra

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Q:

Photosynthesis takes place inside plant cells in _____.

A) Ribosomes B) Chloroplasts
C) Nucleus D) Mitochondria
 
Answer & Explanation Answer: B) Chloroplasts

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Q:

Lipids that are solid at room temperature are known as

A) Oils B) Steroids
C) Fats D) Triglyceroids
 
Answer & Explanation Answer: C) Fats

Explanation:

Lipids are molecules that contain hydrocarbons and make up the building blocks of the structure and function of living cells.

 

Examples of lipids include fats, oils, waxes,...

 

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Q:

 Each trait in the child can be influenced by ______ DNA.

A) only paternal B) only maternal
C) both paternal and maternal D) neither paternal nor maternal
 
Answer & Explanation Answer: C) both paternal and maternal

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Q:

Which one of the following substances is normally found in urine?

A) Blood proteins B) creatinine
C) red blood cells D) white blood cells
 
Answer & Explanation Answer: B) creatinine

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Q:

In eukaryotic cells synthesis of RNA takes place in the _______________.

A) mitochondria B) centrioles
C) ribosomes D) nucleus
 
Answer & Explanation Answer: D) nucleus

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