A student claims that viruses are alive because they have genetic material and can reproduce. Is this student’s claim correct?(1 point)
Responses
Yes, viruses are alive because they can reproduce.
Yes, viruses are alive because they can reproduce.
Yes, viruses are alive because they have genetic material.
Yes, viruses are alive because they have genetic material.
No, viruses are not alive because they do not have genetic material nor can they reproduce.
No, viruses are not alive because they do not have genetic material nor can they reproduce.
No, viruses are not alive because they rely on a host organism to be able to reproduce.
Animal cells do not require a cell wall because they rely on their plasma membrane for structural support and protection. The plasma membrane is flexible and allows for cell movement and shape changes. Additionally, animal cells do not require a central vacuole because they have other organelles, such as lysosomes and peroxisomes, that perform similar functions, such as storage and waste removal. These adaptations allow animal cells to efficiently carry out their functions without the need for a cell wall or central vacuole.
In three to five sentences, compare the process of digesting food in an amoeba (unicellular) to those in a mouse (multicellular) .(4 points)
The process of digesting food in an amoeba is carried out solely by the organism itself. Amoebas engulf their food through phagocytosis, forming a food vacuole in which digestive enzymes break down the food. The nutrients are then absorbed directly into the cytoplasm. In contrast, mice rely on specialized organs and systems for digestion. Food is broken down by mechanical and chemical digestion in the mouth, stomach, and small intestine. Nutrients are then absorbed into the bloodstream and transported to cells throughout the body. The digestive process in mice involves coordination between different organs and systems, allowing for more efficient digestion and nutrient absorption in a multicellular organism.
In three-to-three sentences, compare the process of digesting food in an amoeba (unicellular) to those in a mouse (multicellular) .(4 points)
No, viruses are not alive because they rely on a host organism to be able to reproduce.
Of the five characteristics of living things, which one is required for the species to survive but does not have to apply to an individual?(1 point)
Responses
response to the environment
response to the environment
reproduction
reproduction
use of energy to function
use of energy to function
growth and change over a life cycle
reproduction
Plant cells can use energy from the sun to make food. Animal cells cannot. Which organelle is responsible for this difference between plant and animal cells?(1 point)
Responses
cell wall
cell wall
chloroplast
chloroplast
plasma membrane
plasma membrane
central vacuole
chloroplast
Which statement about plasma membranes is correct?(1 point)
Responses
Plant cells have cell walls instead of plasma membranes.
Plant cells have cell walls instead of plasma membranes.
Plant cells have rigid plasma membranes.
Plant cells have rigid plasma membranes.
Both plant cells and animal cells have flexible plasma membranes.
Both plant cells and animal cells have flexible plasma membranes.
Animal cells have cell membranes instead of plasma membranes,
Both plant cells and animal cells have flexible plasma membranes.
Which organelle processes sugar?(1 point)
Responses
mitochondrion
mitochondrion
nucleus
nucleus
central vacuole
central vacuole
endoplasmic reticulum
mitochondrion
What is the function of the plasma membrane? (1 point)
Responses
It contains hereditary material.
It contains hereditary material.
It helps recognize other cells.
It helps recognize other cells.
It helps filter waste inside the cell.
It helps filter waste inside the cell.
It helps plants maintain their shape.
It helps recognize other cells.
Which statement is correct about the function of a pseudopod? (1 point)
Responses
It helps unicellular organisms reproduce.
It helps unicellular organisms reproduce.
It helps multicellular organisms move.
It helps multicellular organisms move.
It helps unicellular organisms move.
It helps unicellular organisms move.
It helps multicellular organisms reproduce.
It helps unicellular organisms move.
Which function is due to specialized cells found only in plants? (1 point)
Responses
carrying oxygen to other cells
carrying oxygen to other cells
signalling muscles to move
signalling muscles to move
digesting food
digesting food
photosynthesis
photosynthesis
How are leaf cells and root cells different? (1 point)
Responses
Leaf cells have nuclei, but root cells do not.
Leaf cells have nuclei, but root cells do not.
Leaf cells have chloroplasts, but root cells do not.
Leaf cells have chloroplasts, but root cells do not.
Leaf cells can absorb nutrients from the air, but root cells require soil to absorb nutrients.
Leaf cells can absorb nutrients from the air, but root cells require soil to absorb nutrients.
Leaf cells can reproduce, but root cells cannot.