DP Biology Review 3 12th Grade

Which of the following is the correct sequence of the four phases of mitiosis?

• prophase, anaphase, metaphase, telophase

• anaphase prophase, metaphase, telophase

• prophase, metaphase, anaphase, telophase

• prophase, metaphase, telophase, anaphase

Tags

NGSS.HS-LS1-4

1. How did Pasteur’s experiment with sterile broth in open flasks demonstrate the principle that cells only come from pre-existing cells?

• 1. By demonstrating that sterile broth would not ferment in contact with air alone.

• 1. By demonstrating that the air contained microbes.

• 1. By demonstrating that broth would not ferment if sterile.

• 1. By demonstrating that sterile broth fermented in contact with air

1. Emergent properties are found in some biological systems. Which of the following properties is necessary for emergent properties to occur?

• 1. The system Is evolving

• 1. The system is complex

• 1. Cells or tissues are differentiated

• 1. Cells or tissues interact to function as a unit

1. Which of the following are properties of cholesterol found in plasma membranes?

2. 
   I. Reduces permeability of the membrane to hydrophilic ions

3. II. Acts as a channel for ion movement

   III. It is amphipathic

   IV. Reduces fluidity of the membrane

• 1. I and III only

• 1. II and IV only

• 1. I and IV only

• I, III and IV only  

6. Which of the following are properties of phospholipids

   1. I They have a hydrophilic phosphate head

   2. II they form a bilayer in water

   3. III They are amphipathic

   4. IV They have a hydrophobic fatty acid region

• 1. All of the above

• 1. II and IV only

• 1. I and II only

• 1. I, II and IV only

Carbon is the basis of biological polymers because

I It can form chains by bonding to other carbon atoms

II It is found in carbohydrates

III It can form four covalent bonds

• I only

• I and II only

• I and III only

• I, II and III

Hydrogen bonding between water molecules is important in living systems because

I It makes water cohesive

II It gives water a high specific heat capacity

III It makes water transparent

IV It helps water to be a good solvent for polar molecules

• I and III only

• II and IV only

• I and II only

• I, II and IV only

Crick and Watson elucidated the structure of DNA using which of the following?

• Model making

• Gel Electrophoresis

• X-ray crystallography

• Condensation reactions

Which of the following can cause new alleles to form and may lead to genetic diseases?

• 1. Mitosis

• 1. Meiosis

• 1. Radiation

• 1. Variation

Tags

NGSS.HS-LS3-2

Which of the following best defines the term, “gene”?

• 1. a heritable factor that consists of a length of DNA and influences many characteristics.

• 1. a heritable factor that consists of a length of mRNA and influences many characteristics.

• 1. a heritable factor that consists of a length of DNA and influences a specific characteristic

• a heritable factor that consists of a length of mRNA and influences a specific characteristic.

Tags

NGSS.HS-LS3-1