The Chemical Structure of ABA Determines Its Physiological Activity, 15 carbon compound 

a) The orientation of the carboxyl group at carbon 2 determines the cis and trans isomers of ABA. Nearly all the naturally occurring ABA is in the cis form

b) S enantiomer is the natural form; commercially available synthetic  ABA is a mixture of approximately equal amounts of the S and R forms.

c) The S enantiomer is the only one that is active in fast responses to ABA, such as stomatal closure

d) In long-term responses, such as seed maturation, only R-enantiomers are active

e) In contrast to the cis and trans isomers, the S and R forms cannot be interconverted in the plant tissue

Which of the following is the correct prediction about the active form  of ABA?

TLS Online TPP Program

#Question id: 24189

#Unit 1. Molecules and their Interaction Relevant to Biology

Every year, Americans use over one billion sharp objects to administer healthcare in their homes. These sharp objects include lancets, needles, and syringes. If not disposed of in puncture-resistant containers, they can injure sanitation workers. Sharp objects should be disposed of in hard plastic or metal containers with secure lids. The containers should be clearly marked and be puncture resistant.

The paragraph best supports the idea that sanitation workers can be injured if they

TLS Online TPP Program

#Question id: 24188

#Unit 1. Molecules and their Interaction Relevant to Biology

The entire low-carbohydrate versus low-fat diet argument is so prevalent that one would think that these are the only two options available for losing weight and staying healthy. Some experts even feel that the low-carb/low-fat debate distracts us from an even more important issue—our culture’s reliance on processed and manufactured foods.

The paragraph best supports the statement that

TLS Online TPP Program

#Question id: 24187

#Unit 1. Molecules and their Interaction Relevant to Biology

The use of desktop computer equipment and software to create high quality documents such as newsletters, business cards, letterhead, and brochures is called Desktop Publishing, or DTP. The most important part of any DTP project is planning. Before you begin, you should know your intended audience, the message you want to communicate, and what form your message will take.

The paragraph best supports the statement that

TLS Online TPP Program

#Question id: 24186

#Unit 1. Molecules and their Interaction Relevant to Biology

In cities throughout the country, there is a new direction in local campaign coverage. Frequently in local elections, journalists are not giving voters enough information to understand the issues and evaluate the candidates. The local news media devotes too much time to scandal and not enough time to policy.

This paragraph best supports the statement that the local news media

TLS Online TPP Program

#Question id: 27575

#Unit 1. Molecules and their Interaction Relevant to Biology

Which kind of interactions occur between the side chains of oppositely charged residues as well as between the NH3+ and COO− groups at the ends of polypeptide

TLS Online TPP Program

#Question id: 27573

#Unit 1. Molecules and their Interaction Relevant to Biology

Interaction type, Distance dependence of potential energy, and Typical energy (kJ mol-1) are given

Interaction type	Distance dependence of potential energy	Typical energy (kJ mol⁻¹)
1. Ion-ion	a. 1/r6	i. 2
2. Ion-dipole	b. 1/r6	ii. 15
3. Dipole-dipole (rotating polar molecule)	c. 1/r2	iii. 0.3
4. London (dispersion)	d. 1/r	iv. 250

Match them correctly