COVID-19 Spike Protein and ACE2 Receptors Quiz

Play an AI-generated podcast conversation about this lesson

Which type of membrane protein provides an opening for molecules to pass through by changing shape?

Structural membrane protein

Carrier membrane protein (correct)

Channel membrane protein

Receptor membrane protein

What is the main function of ACE2 receptors in human nasal cavities?

Indirectly manage inflammation (correct)

Facilitate cellular growth

Act as a protective barrier against viruses

Regulate blood pressure

Why is the ECM (Extracellular Matrix) considered mysterious in research?

Cells cannot grow in vitro without it

It has unknown origins

It plays a crucial role in cellular growth

Its function is not fully understood (correct)

Which part of the virus cells does the orange spikes protein belong to?

Upper part Signup and view all the answers

What would happen if the gene for ACE2 production was removed or knocked out?

Impaired blood pressure regulation and inflammation management Signup and view all the answers

What is the main role of intercellular joining of cells?

Connect to other cells in the neighborhood Signup and view all the answers

What is the correct term for the sections in the DNA that are responsible for coding proteins?

Codons Signup and view all the answers

Why is mRNA considered 'coding'?

It contains the same genetic information as DNA but with uracil instead of thymine. Signup and view all the answers

What gives water its temperature stabilizing capacity?

High Specific Heat Capacity Signup and view all the answers

Why does the color from the stem with flowers rise when immersed in colored dye?

Due to hydrogen bonds Signup and view all the answers

Which molecule guides the translation process in protein synthesis?

rRNA Signup and view all the answers

What is the specific heat of water?

1.0 calorie per gram Signup and view all the answers

What mutation is responsible for sickle cell anemia?

Single point mutation changing CTT to CAT Signup and view all the answers

In the primary structure of a protein, what allows amino acids to communicate and interact with each other?

Forces of attraction based on amino acid properties Signup and view all the answers

How do hydrogen bonds contribute to the cohesiveness of water?

By forming an extensive network of H-bonded molecules Signup and view all the answers

What would happen to planetary temperature if water did not have a high specific heat capacity?

Rapid temperature changes causing climate instability Signup and view all the answers

What determines the wide range of functions that proteins can carry out?

The arrangement of amino acids in the protein sequence Signup and view all the answers

Why does the upper layer of sweat on skin have high heat energy?

It is the warmer layer Signup and view all the answers

What type of interactions involves weak attractions between two atoms that only occur if the atoms are very close to one another and oriented appropriately?

Van der Waals Interactions Signup and view all the answers

What is the function of HSP70 in cells experiencing elevated temperatures?

To protect cells by acting as a chaperone protein Signup and view all the answers

What do hydrophobic interactions describe in macromolecules?

Association of nonpolar groups to minimize contact with water Signup and view all the answers

How do chaperone proteins like HSP70 contribute to cells under stress?

They help fold proteins correctly and prevent aggregation Signup and view all the answers

What causes huge problems for the tobacco industry mentioned in the text?

Self-assembly of tobacco mosaic virus particles Signup and view all the answers

Why do water droplets bead up on a newly waxed car when it rains?

Due to the hydrophobic nature of the car's surface. Signup and view all the answers

What type of bond is 2.1, as mentioned in the text?

Ionic bond Signup and view all the answers

How do water molecules exhibit capillary action?

By attracting other substances to rise against gravity in narrow spaces. Signup and view all the answers

Why does it take 8-10 minutes to boil water?

Due to the presence of hydrogen bonds that need to be broken. Signup and view all the answers

What property of water is responsible for its high boiling point?

Specific heat capacity Signup and view all the answers

How are water molecules attracted to each other according to the text?

Through hydrogen bonds due to polarity. Signup and view all the answers