Cell Theory Biology IB

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

• Prophase, anaphase, metaphase, telophase

• Anaphase, prophase, metaphase, telophase

• Prophase, metaphase, anaphase, telophase

• Prophase, metaphase, telophase, anaphase

Tags

NGSS.HS-LS1-4

How did Pasteur’s experiment with sterile broth in open flasks demonstrate the principle that cells only come from preexisting cells?

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

• By demonstrating that the air contained microbes.

• By demonstrating that broth would not ferment if sterile.

• By demonstrating that sterile broth fermented in contact with air

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

• The system Is evolving

• The system is complex

• Cells or tissues are differentiated

• Cells or tissues interact to function as a unit

Tags

NGSS.HS-LS1-2

Which of the following organelles are surrounded by a single membrane?

I - Ribosome

II - Rough endoplasmic reticulum

III - Chloroplast

IV - Lysosome

• I and III only

• II and IV only

• I and II only

• I, II and IV only

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

I. Reduces permeability of the membrane to hydrophilic ions

II. Acts as a channel for ion movement

III. It is amphipathic

IV. Reduces fluidity of the membrane

• I and III only

• II and IV only

• I and IV only

• I, III and IV only

Which of the following are properties of phospholipids?

I. They have a hydrophilic phosphate head

II. they form a bilayer in water

III. They are amphipathic

IV. They have a hydrophobic fatty acid region

• All of the above

• II and IV only

• I and II only

• I, II and IV only

The medium in which a donor organ for transplant is bathed in an isotonic medium, a solution of the same concentration as the cell cytoplasm. Why?

• The donated organ requires oxygen

• The organ must take up minerals from the solution

• The organ is delicate

• The organ must not lose or gain water

Tags

NGSS.HS-LS1-3

Which of the following can cause the formation of a primary tumour, or cancer?

I Oncogenes

II Mutagens

III Proto-oncogenes

IV Metastasis

• All of the above

• II and IV only

• I and II only

• I, II and III only

Tags

NGSS.HS-LS3-2

Which of the following events happens during mitosis in a plant cell?

• Condensation of chromosomes

• Cell wall formation

• Sister chromatids attach to each other at the centromere

• Chloroplasts duplicate

Tags

NGSS.HS-LS1-4

Which statement best describes the movement of water molecules in osmosis?

• From a dilute to a more concentrated solution across a membrane

• From a concentrated solution to a dilute solution across a membrane

• From a dilute to a concentrated solution across a membrane using energy from ATP

• From a concentrated solution to a dilute solution using energy from ATP