What might happen to an animal cell if its lysosomes were to burst?(1 point)

Responses

The cell would become more efficient at producing energy.
The cell would become more efficient at producing energy.

The cell's membrane would become more permeable, allowing more substances to enter and exit the cell.
The cell's membrane would become more permeable, allowing more substances to enter and exit the cell.

The digestive enzymes within the lysosomes would leak into the cytoplasm and break down other organelles.
The digestive enzymes within the lysosomes would leak into the cytoplasm and break down other organelles.

The nucleus would release more DNA, leading to increased protein synthesis.

11 answers

If lysosomes were to burst in an animal cell, the most accurate response would be:

The digestive enzymes within the lysosomes would leak into the cytoplasm and break down other organelles.

When lysosomes rupture, the digestive enzymes they contain can escape into the cytoplasm, leading to the degradation of cellular components, which can ultimately be detrimental to the cell's viability.

Using your understanding of the function of chloroplasts and specialized cells, infer why plant root cells lack chloroplasts. (1 point)
Responses

Roots require fewer nutrients.
Roots require fewer nutrients.

Roots are underground and are not exposed to sunlight.
Roots are underground and are not exposed to sunlight.

Root cells have two central vacuoles.
Root cells have two central vacuoles.

Root cells have many mitochondria

The most accurate response is:

Roots are underground and are not exposed to sunlight.

Chloroplasts are responsible for photosynthesis, a process that requires light. Since root cells are located underground and do not receive sunlight, they do not need chloroplasts for photosynthesis, which is why they lack these organelles.

Osmosis is a form of passive transport. Which defines osmosis? (1 point)
Responses

the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy
the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy

the movement of water across a semipermeable membrane down a concentration gradient from high to low, using energy
the movement of water across a semipermeable membrane down a concentration gradient from high to low, using energy

the movement of water across a semipermeable membrane up a concentration gradient from low to high, using energy
the movement of water across a semipermeable membrane up a concentration gradient from low to high, using energy

the movement of water across a semipermeable membrane up a concentration gradient from low to high, using no energy

The correct definition of osmosis is:

the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy.

Osmosis specifically refers to the passive movement of water molecules through a semipermeable membrane, where water moves from an area of lower solute concentration (high water concentration) to an area of higher solute concentration (low water concentration), without the use of energy.

A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases. Which has occurred? (1 point)
Responses

The swollen gums have absorbed the saltwater solution.
The swollen gums have absorbed the saltwater solution.

The salt in the solution has moved against the concentration gradient.
The salt in the solution has moved against the concentration gradient.

The water in the gums has moved from a high to a low concentration of water.
The water in the gums has moved from a high to a low concentration of water.

The saltwater solution lowers the temperature of the water in the gums.

The correct response is:

The water in the gums has moved from a high to a low concentration of water.

When a person rinses their mouth with warm salt water, the saltwater solution is hypertonic compared to the tissue fluid in the swollen gums. As a result, water moves out of the swollen gum tissues (which have a higher concentration of water) into the saltwater solution (which has a lower concentration of water), leading to a decrease in swelling. This process is a form of osmosis.

Which of the following statements best describes the difference between hydrophilic and hydrophobic molecules?(1 point)
Responses

Hydrophobic molecules are attracted to water and dissolve easily in it, while hydrophilic molecules are repelled by water and do not dissolve easily in it.
Hydrophobic molecules are attracted to water and dissolve easily in it, while hydrophilic molecules are repelled by water and do not dissolve easily in it.

Hydrophilic molecules are attracted to water and dissolve easily in it, while hydrophobic molecules repel water and do not dissolve easily in it.
Hydrophilic molecules are attracted to water and dissolve easily in it, while hydrophobic molecules repel water and do not dissolve easily in it.

Hydrophilic molecules are repelled by water and do not dissolve in it, while hydrophobic molecules are attracted to water and dissolve easily in it.
Hydrophilic molecules are repelled by water and do not dissolve in it, while hydrophobic molecules are attracted to water and dissolve easily in it.

Both hydrophilic and hydrophobic molecules dissolve easily in water, but hydrophilic molecules also dissolve in oils

The correct statement is:

Hydrophilic molecules are attracted to water and dissolve easily in it, while hydrophobic molecules repel water and do not dissolve easily in it.

Hydrophilic molecules have an affinity for water and can interact with it, while hydrophobic molecules do not interact well with water and tend to repel it, making them less soluble in aqueous environments.

Which of the following best describes the relationship between cells, tissues, organs, and organ systems?(1 point)
Responses

Tissues are made up of multiple organs and cells that work together to perform a specific function, while organ systems are single structures made up of one type of tissue.
Tissues are made up of multiple organs and cells that work together to perform a specific function, while organ systems are single structures made up of one type of tissue.

Tissues are groups of organ systems that perform a single function, and organs are made up of a single type of tissue. Cells are the overall structure made up of tissues and organs.
Tissues are groups of organ systems that perform a single function, and organs are made up of a single type of tissue. Cells are the overall structure made up of tissues and organs.

Cells are the smallest units of life and form tissues. Tissues work together to form organs. Organs work together toward a common goal as organ systems.
Cells are the smallest units of life and form tissues. Tissues work together to form organs. Organs work together toward a common goal as organ systems.

Organ systems are the smallest units of life, made up of organs, which in turn are composed of tissues.

The correct statement is:

Cells are the smallest units of life and form tissues. Tissues work together to form organs. Organs work together toward a common goal as organ systems.

This statement accurately describes the hierarchical organization of biological structures, from the smallest unit (cells) to increasingly complex structures (tissues, organs, and organ systems).