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Camryn Jones Quiz #1: Biology Chapters 1-5

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Camryn Jones Quiz #1: Biology Chapters 1-5

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Questions and Answers

What is the effect of insulin on the blood glucose level?

It has no effect on the blood glucose level.

It decreases the blood glucose level. (correct)

It maintains the blood glucose level.

It increases the blood glucose level.

What type of bond is formed between two atoms with equal electronegativity?

Nonpolar covalent bond (correct)

Ionic bond

Hydrogen bond

Polar covalent bond

What is the characteristic of atoms with 8 electrons in their outer electron shells?

They are chemically reactive.

They form hydrogen bonds in aqueous solutions.

They are stable and chemically nonreactive. (correct)

They are always gaseous at room temperature.

What is the effect of increasing the pH of a solution from 5 to 7?

The concentration of OH- is 100 times greater. Signup and view all the answers

What is the characteristic of saturated fats?

They contain more hydrogen than unsaturated fats. Signup and view all the answers

What type of bond must be broken for water to vaporize?

Hydrogen bonds Signup and view all the answers

What is the primary reason phospholipids are able to interact with water molecules?

The polar heads of phospholipids interact with water through dipole-dipole interactions. Signup and view all the answers

What is the primary function of the structure of chloroplasts in providing evidence of common ancestry?

Their structure is similar across all photosynthetic organisms. Signup and view all the answers

What is the effect of the high surface tension of water on the process of evaporation from the skin?

It decreases the rate of evaporation, reducing the cooling effect. Signup and view all the answers

Which of the following is NOT an example of the effect of the high surface tension of water?

The near universality of the genetic code is a result of the high surface tension of water. Signup and view all the answers

What is the primary reason why lakes do not freeze solid in winter despite low temperatures?

The dissolved substances in the lake water lower its freezing point. Signup and view all the answers

Which of the following is an example of the near universality of the genetic code?

The codon UUU codes for the same amino acid in all organisms. Signup and view all the answers