What is the main function of the Cell Wall?

Provide structural support and protection

What are two things true about the water structure?

It is made up of atoms bonded to form molecules and the chemical formula is H2O

It has a planar shape and is a nonpolar molecule

It has a tetrahedral shape and is a polar molecule

It has a linear shape and is a nonpolar molecule

What is a polar molecules vs a nonpolar molecule?

Polar molecules have an uneven distribution of charge, while nonpolar molecules have an even distribution of charge.

Polar molecules have a symmetrical shape, while nonpolar molecules have an asymmetrical shape.

Polar molecules have a positive charge, while nonpolar molecules have a negative charge.

Polar molecules are always solid at room temperature, while nonpolar molecules are always liquid.

How does surface tension force the surface of the water to curve?

The molecules at the surface are being pulled by other molecules, forcing the water to curve

Surface tension is caused by the gravitational pull on the water

The curve of the water's surface is due to the temperature of the water

The surface of the water curves because of the air pressure above it

Name 3 things true about water's surface tension.

Surface tension helps some insects "skate" across the surface of water, it refers to the tightness across the surface of water, it causes raindrops to form round beads.

Surface tension is caused by the repulsion between water molecules, caused by the attraction between water molecules, causes water to spread out evenly on surfaces.

Surface tension allows large animals to walk on water, surface tension is stronger in pure water compared to water with impurities, water molecules exhibit strong cohesive forces.

Surface tension causes water to spread out evenly on surfaces, the surface tension of water actually decreases as the temperature increases, surface tension is a result of cohesive forces among water molecules.

What is the capillary action?

The ability of a liquid to flow in narrow spaces without the assistance of gravity.

The force that causes liquids to evaporate

The ability of a gas to expand and contract

The process of water moving through a pipe

What three things are true about the capillary action?

It explains how water moves across the force of gravity, it's due to the attraction among molecules of water and surrounding materials, it causes clothes to stay dry.

It is caused by gravitational force, is solely due to cohesion forces, is more effective in wider tubes compared to narrower ones.

It only occurs in non-porous materials, is only observed in non-polar liquids, always results in a convex meniscus.

It is not related to the movement of water in plants, is not influenced by the diameter of the capillary tube, can move liquids against the force of gravity.

How does the capillary action allow water to climb up the sides of a straw?

Capillary action has surrounding molecules of materials that cause liquid to climb against the force of gravity, so water can move inside the plastic straw.

Capillary action is driven by the weight of the water pulling it down into the straw.

Capillary action happens because water molecules are attracted to each other but not to the straw material.

Capillary action occurs because water molecules are repelled by the straw material.

Why can water dissolve so many substances?

Water has a high boiling point.

Water is a solid at room temperature.

What three things are true about water's specific heat?

It is due to the many attractions for water molecules, it makes large bodies of water heat up more quickly than nearby land, it leads to warmer air over land than over water on summer days.

It requires very little energy to change its temperature, water's specific heat is not relevant to living organisms, it has a high specific heat capacity.

It has a low specific heat capacity, water's specific heat is lower than that of most other liquids, it has no impact on Earth's temperature.

It has no impact on Earth's temperature, water heats up and cools down rapidly, water has a low specific heat capacity.

How does the high specific heat of water affect the body?

It helps regulate body temperature by absorbing and releasing heat slowly.

It increases the body's sensitivity to temperature changes

It causes dehydration in the body

The measure of electrical difference within a molecule, bond, or structure.

The study of rocks and minerals

The process of converting a solid into a liquid

The measurement of the Earth's magnetic field

How does detergent help break down oil in a pan?

The hydrophobic part of the detergent molecules is attracted to the oil. As a result, the detergent surrounds and encloses small droplets of oil, breaking them down into smaller particles.

The color of the detergent changes the chemical composition of the oil

Detergent creates a physical barrier between the oil and the pan

Detergent increases the temperature of the oil, causing it to break down

What is the function of vesicles?

Transporting materials within the cell

What is the function of smooth endoplasmic reticulum?

Responsible for the synthesis of essential lipids

Biology - Cells, Membrane, Diseases

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