Forces that affect motion 7.7B

Geotropism is a force that affects certain organisms. This force will result in which of the following?

• A flower to die due to lack of water

• The roots of a plant to grow downward

• Animals to seek shelter on high ground

• Fish to float to the surface when they die

Gravity and other forces affect movement within an animal’s body. Which system is responsible for the force that moves blood through the body?

• Endocrine system

• Circulatory system

• Skeletal system

• Nervous system

Turgor pressure helps a seed in which of the following ways?

• Acquiring nutrients it needs from the soil

• Providing it energy without sunlight

• Conserving water until its roots grow

• Pushing its way out of the seed coat

The roots of plants grown on the space shuttle while in orbit around Earth all have different orientations. A logical conclusion is that the irregular root growth is caused by the lack of -

• soil.

• glucose.

• gravity.

• sunlight.

Which plant would be stiff and rigid?

• A

• B

Which plant would be wilted or limp?

• A

• B

What is the tropism where plant responds to external stimiuli of gravity?

• gravitropism/geotropism

• phototropism

• thigotropism

• none of the above

Turgor pressure is a result of water in what plant cell organelle?

• Mitochondrion

• Nucleus

• Cell wall

• Vacuole

What does blood transport?

• Nutrients
• Oxygen 
• Carbon Dioxide
• All of the above

What force is this image representing?

• Emergence of Seedling

• Geotropism

• Circulation of blood by the heart

• turgor pressure.