MP2 Science Final

In which cell structure is energy extracted from nutrients?

mitochondrion

Which two processes are most directly represented in this diagram?

molecule transport and energy use

Mitochondria provide ribosomes with

ATP for protein synthesis

Which statement best describes these sugar and fat molecules?

Energy for life processes can be stored within the chemical bonds of both molecules.

Which statement is most likely correct regarding soil bacteria that inhabit the polar regions of Earth?

They contain enzymes that function at low temperatures

Chemicals that help chemical reactions occur at faster rates in living organisms are known as

Organic catalysts

Which structures are found in every living cell?

Plasma membrane and cytoplasm

What will happen to red blood cells when they are placed in a beaker containing a water solution in which the salt concentration is much higher than the salt concentration in the red blood cells?

The red blood cells will lose water and decrease in size.

The arrow indicates that the cell membrane is carrying out the process of

active transport

The substance represented by the scissors shown cutting the DNA is

an enzyme

This increase in mass comes mostly from

carbon dioxide that enters through the leaf openings

Bacteria and humans are similar in that they both

contain genetic material

After 20 minutes, the section of paper towel connecting the two beakers had turned color. The towel most likely turned green as a result of the

diffusion of the blue- and yellow-dyed water across the towel

Water is classified as an inorganic compound because it

doesn't contain carbon

Sometimes these disorders can be treated by giving the affected individual the appropriate amount of

enzymes

The best explanation for the change in catalase activity as the pH changed from 7 to 3 is that

in acidic solutions, the shape of catalase changes, causing the reaction rate to decrease

Plants, animals, and bacteria are all

in different kingdoms

The function of a specific enzyme is most directly influenced by its

physical shape

Which group consists entirely of organic molecules?

protein, starch, fat

In the cartoon below, how would the organism on the couch be classified?

protists

Which technique could be used to make the structures in the cells more visible when using a compound light microscope?

staining

Identify one molecule, present in this setup, that will be able to pass through the dialysis tubing.

starch indicator/iodine or water.

In single-celled organisms, materials are stored primarily in

vacuoles

Most of the chemical reactions occurring in a living cell depend on the presence of an inorganic compound known as

water

Which substance is an inorganic molecule

water

The function of which cell part is most similar to that of the human excretory system?

Cell membrane

Viruses are able to invade cells after first attaching to their

Cell membrane

In order to meet its energy needs, it (amoeba) relies directly on the interaction of which cell structures?

Cell membrane and mitochondria

The type of organic molecule that is being synthesized is

Protein

Which statement describes starches, fats, proteins, and DNA?

They are complex molecules made from smaller molecules