Biogeochemical Cycling

Biogeochemical Cycling

Assessment

Interactive Video

Chemistry, Science, Biology, Engineering

11th Grade - University

Easy

Created by

Wayground Content

Used 1+ times

FREE Resource

Mr. Anderson discusses biogeochemical cycles, focusing on the essential elements CHNOPS: carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulphur. He explains the importance of each element in biological processes, such as carbon's role in organic compounds, hydrogen's role in water and energy transfer, nitrogen's necessity for amino acids and DNA, oxygen's function in respiration, phosphorus's role in DNA and ATP, and sulphur's contribution to protein structure. The video emphasizes the recycling of nutrients in ecosystems, contrasting it with the one-way flow of energy from the sun.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the mnemonic CHNOPS stand for?

Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur

Carbon, Hydrogen, Neon, Oxygen, Phosphorus, Sulfur

Carbon, Hydrogen, Nitrogen, Oxygen, Potassium, Sulfur

Carbon, Helium, Nitrogen, Oxygen, Phosphorus, Sulfur

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is carbon considered essential for life?

It is the primary source of energy

It is excellent at forming complex organic molecules

It is a key component of water

It forms the backbone of DNA

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does hydrogen contribute to energy transfer in cells?

By forming strong covalent bonds

By acting as a catalyst in reactions

Through its role in ATP synthesis

By providing structural support to proteins

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of nitrogen in amino acids?

It forms the backbone of amino acids

It is part of the amino group in amino acids

It provides energy for amino acid synthesis

It stabilizes the structure of amino acids

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which nitrogenous base is rich in nitrogen and found in DNA?

Adenine

Thymine

Guanine

Cytosine

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of oxygen in cellular respiration?

It provides structural support

It receives electrons at the end of the process

It acts as a catalyst

It is converted into glucose

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is phosphorus important in DNA structure?

It provides energy for replication

It forms the sugar backbone

It is part of the phosphate backbone

It stabilizes the double helix

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