Biology Quiz

Which of the following is an alpha-imino acid?

• Serine

• Valine

• Proline

• Threonine

DNA helix loops at how many base pairs per turn?

• 8

• 10

• 12

• 14

Which of the following is a growth factor proteoglycan?

• Keratan sulfate

• Heparan sulfate

• Chondroitin sulfate

• Hyaluronic acid

Which combination is incorrect for vitamin and its deficiency?

• B1 - Beriberi

• B9 - Beriberi

• B12 - Megaloblastic anemia

• C - Scurvy

Which is true about muscle contraction?

• Actin binds to ATP directly

• Myosin tail binds actin

• Globular myosin head binds to actin filaments

• Calcium binds directly to myosin

Movement from Golgi cis to trans face is by:

• Passive diffusion

• Active transport

• Transport vesicles

• Translocation via protein channels

Which vitamin is a coenzyme for transketolation?

• B6

• B2

• B1

• B12

Which of the following is not calcium-dependent?

• Cadherin

• Selectin

• Ig-CAM

• Integrin

What is true about protein structure?

• Peptide bonds can form disulfide bridges

• Oxidation of S-H bonds can form disulfide bridges

• Hydrogen bonds break S-H bonds

• Ionic bonds are strongest in water

In the 2005 health pyramid, what new element was added?

• Meal timing

• Physical activity

• Calorie limits

• Water consumption