Bio – Chapter 5 + Chapter 6

1

Which of the following is a structural polysaccharide found in the exoskeleton of insects?

A Starch B Glycogen C Cellulose D Chitin

2

Which tissue type is specialized for contraction and movement?

A Epithelial tissue B Connective tissue C Muscle tissue D Nervous tissue

3

Which scientists proposed the double-helix model of DNA?

A Mendel and Morgan B Watson and Crick C Darwin and Wallace D Pasteur and Koch

4

A scientist is studying a molecule that is a polymer of amino acids. What type of biomolecule is it?

A Carbohydrate B Lipid C Protein D Nucleic acid

5

Which of the following is a storage polysaccharide in plants?

A Glycogen B Cellulose C Starch D Chitin

6

What are the three components of a nucleotide?

A Pentose sugar, nitrogenous base, phosphate group B Hexose sugar, amino acid, phosphate group C Glycerol, fatty acid, phosphate group D Pentose sugar, carboxyl group, nitrogenous base

7

Which of the following is an organ found in the shoot system of a plant?

A Root B Leaf C Root hair D Root cap

8

Which nitrogenous base is found in RNA but not in DNA?

A Adenine B Guanine C Cytosine D Uracil

9

Which human organ system is mainly responsible for taking in oxygen and removing carbon dioxide?

A Digestive system B Circulatory system C Respiratory system D Urinary system

10

What is the central dogma of molecular biology?

A DNA → RNA → Protein B RNA → DNA → Protein C Protein → RNA → DNA D DNA → Protein → RNA

11

Which type of fatty acid has no double bonds between carbon atoms?

A Saturated B Unsaturated C Monounsaturated D Polyunsaturated

12

The double-helix model of DNA was proposed by:

A Watson and Crick B Chargaff C Meselson and Stahl D Hershey and Chase

13

Which of the following is a function of the liver?

A Pumping blood B Producing bile and detoxifying blood C Exchanging gases D Filtering urine

14

Which organ system is primarily responsible for gas exchange?

A Digestive system B Respiratory system C Urinary system D Skeletal system

15

Which monosaccharide is known as blood sugar?

A Fructose B Galactose C Glucose D Ribose

16

Which of the following is a transport protein?

A Collagen B Hemoglobin C Keratin D Fibrin

17

Which macromolecule is made up of amino acids?

A Carbohydrates B Lipids C Proteins D Nucleic acids

18

Which type of RNA carries amino acids to the ribosome?

A mRNA B tRNA C rRNA D snRNA

19

Shivering is a response that helps to:

A Cool the body down B Increase heat production in the body C Reduce blood glucose levels D Increase water loss

20

Which of the following best describes a tissue?

A A group of similar cells that work together to perform a specific function B A structure made of different tissues that work together C The basic unit of life D A group of organs that work together

21

The stomach is an example of which level of organization?

A Cell B Tissue C Organ D Organ system

22

Which protein is responsible for oxygen transport in blood?

A Insulin B Hemoglobin C Collagen D Antibody

23

What is the main storage polysaccharide in animals?

A Starch B Glycogen C Cellulose D Chitin

24

Which part of the human brain controls balance and coordination?

A Cerebrum B Cerebellum C Medulla D Hypothalamus

25

Which human organ system includes the heart, blood vessels, and blood?

A Respiratory system B Digestive system C Circulatory system D Nervous system