46W CA

What is the movement of particles with the concentration gradient using protein "helpers"?

• diffusion

• facilitated diffusion

• active transport

• enzymatic reactions

Which type of Passive Transport is being represented in this picture?

• Passive Diffusion
• Simple Diffusion
• Active Diffusion
• Facilitated Diffusion

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

This egg has shrunk, what type of solution was it placed in?

• hypotonic solution
• hypertonic solution
• isotonic solution
• active transport

What type of solution is this cell in?

• Isotonic
• Hypertonic
• Hypotonic
• diffused

What step of the cell cycle is the cell in?

• Cytokinesis

• Interphase

• Anaphase

• Metaphase

In mitosis, the two resulting cells are

• different from the starting cell and identical to each other.
• different from the starting cell and different from each other.
• identical to the starting cell and different from each other.
• identical to the starting cell and identical to each other.

What is Metaphase?

• The chromosomes in the nucleus condense, the nuclear envelope break down, and the spindle fibers begin to form.

• Chromosomes attach to spindle fibers and line up in the middle of the cell.

• The nuclear membrane begins to form, the chromosomes unwind, and two identical nuclei begin to form.

• The centromore splits, which pulls the chromatids apart. Each chromatids is now called a chromosome and the spindle fibers pull the chromosomes to opposite ends of the cell.

Which of the following best describes a DNA molecule?

• double helix

• contains ribose

• made of amino acids

• contains Uracil

Adenine bonds with ______________.

• Guanine

• Thymine

• Cytosine

• Adenine