The protein structure that results from hydrogen bonds forming beta-pleated sheets and alpha helices is

What is the special type of bond that forms between two amino acids?

• Ionic bonds are formed by the transfer of one or more electrons between 2 atoms.
• Hydrogen bonds are attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as a N, O, or F.

Dehydration synthesis is the reaction that occurs, allowing amino acids to bond. What happens during this process?

All amino acids have the same basic structure. Which part of the amino acid makes each one unique?

Cinema theatres are designed for sound _______.

To make sound louder, sound should be _______.

• Echo and reverberation are based on the reflections of sound.

Horn from vehicle is the source of ___________ .

Sonar has a receiver called __________

• Seismographs are instruments used to record the motion of the ground during an earthquake.

If the sound travelled a distance of 12 m in 2 s. Find the velocity of sound in echo.

Drums can produce ultrasound.

The units of time:

1 Bar = 10⁵ Pascal

Reverberation occurs only in ________.

The louder unpleasant sound is called as ______.

SONAR is used in _______.

• It works on the principle of reflection of ultrasound waves.

The sound from the transmitter of the SONAR is reflected by.