VIDEO LESSON ON NATURAL SELECTION

VIDEO LESSONS AND PRACTICE QUESTIONS

VIDEO QUIZ ON MOVEMENT ACROSS THE CELL MEMBRANE

PRACTICE QUESTIONS ON MOVEMENT ACROSS THE CELL MEMBRANE

ANSWERS TO QUESTION FOR THE DAY

1. A student placed a blue ink drop in a jar of water. After some time, the whole water turned blue. Which of the following processes occurred?
A. Osmosis
B. Simple Diffusion
C. Active Diffusion
D. Facilitated diffusion

2. Water enters the roots of plants by which of the following process?
A. Osmosis
B. Simple Diffusion
C. Active Diffusion
D. Facilitated diffusion

3. Oxygen from the atmosphere enters the blood from the lung by ____________________ .
A. Osmosis
B. Simple Diffusion
C. Active Diffusion
D. Facilitated diffusion

4. The Na+/K+ ATPase pumps sodium and potassium in  and out of the cell by ____________ .
A. Osmosis
B. Simple Diffusion
C. Active Diffusion
D. Facilitated diffusion

5. When a red blood cell (RBC) is placed in a hypertonic solution, it will ____________________ .
A. Increase in size
B. Shrink
C. Rupture
D. Remain the same

6. When a red blood cell (RBC) is placed in a hypotonic solution, it will ____________________ .
A. Increase in size and rupture
B. Shrink
C. Crenate
D. Remain the same

QUESTION FOR THE DAY

1. A student placed a blue ink drop in a jar of water. After some time, the whole water turned blue. Which of the following processes occurred?
A. Osmosis
B. Simple Diffusion
C. Active Diffusion
D. Facilitated diffusion

2. Water enters the roots of plants by which of the following process?
A. Osmosis
B. Simple Diffusion
C. Active Diffusion
D. Facilitated diffusion

3. Oxygen from the atmosphere enters the blood from the lung by ____________________ .
A. Osmosis
B. Simple Diffusion
C. Active Diffusion
D. Facilitated diffusion

4. The Na+/K+ ATPase pumps sodium and potassium in  and out of the cell by ____________ .
A. Osmosis
B. Simple Diffusion
C. Active Diffusion
D. Facilitated diffusion

5. When a red blood cell (RBC) is placed in a hypertonic solution, it will ____________________ .
A. Increase in size
B. Shrink
C. Rupture
D. Remain the same

6. When a red blood cell (RBC) is placed in a hypotonic solution, it will ____________________ .
A. Increase in size and rupture
B. Shrink
C. Crenate
D. Remain the same

QUESTION FOR THE DAY

1. How would cream crackers taste if it is chewed slowly?

A. Sweet     B. Bitter     C. Sour      D. Tasteless

2. What will be the end-product of maltose digestion?

A. glucose     B. glucose and galactose    C. galactose     D. glucose and fructose

3. What will be the end-product of sucrose digestion?

A. glucose     B. glucose and galactose    C. galactose and fructose     D. glucose and fructose

4. What will be the end-product of lactose digestion?

A. glucose     B. glucose and galactose    C. galactose and fructose     D. glucose and fructose

5. Which of the following will turn blue-black when test with Lugol's solution?

A. protein     B. starch    C. glucose     D.  fructose