Answer the following question given this paragraph: Vascular tissue runs through the ground tissue inside a plant. It transports fluids throughout the plant. Vascular tissue actually consists of two types of tissues, called xylem and phloem. The two types of vascular tissue are packaged together in bundles. You can see them in the celery in Figure below . Q: What are the two types of vascular tissues? A:
OPTIONS:
- ectoderm and phloem
- epidermis and phloem
- ganglia and phloem
- xylem and phloem
xylem and phloem

Answer the following question given this paragraph: A combustion reaction occurs when a substance reacts quickly with oxygen (O 2 ). For example, in the Figure below , charcoal is combining with oxygen. Combustion is commonly called burning, and the substance that burns is usually referred to as fuel. The products of a complete combustion reaction include carbon dioxide (CO 2 ) and water vapor (H 2 O). The reaction typically gives off heat and light as well. The general equation for a complete combustion reaction is:. Q: What kind of a reaction occurs when a substance reacts quickly with oxygen? A:
OPTIONS:
- invention reaction
- Fluid Reaction
- nitrogen reaction
- combustion reaction

Answer: combustion reaction

Question: Answer the following question given this paragraph: We already know that the magnitude of angular momentum is quantized for electron orbits in atoms. The new insight is that the direction of the orbital angular momentum is also quantized. The fact that the orbital angular momentum can have only certain directions is called space quantization. Like many aspects of quantum mechanics, this quantization of direction is totally unexpected. On the macroscopic scale, orbital angular momentum, such as that of the moon around the earth, can have any magnitude and be in any direction. Detailed treatment of space quantization began to explain some complexities of atomic spectra, but certain patterns seemed to be caused by something else. As mentioned, spectral lines are actually closely spaced doublets, a characteristic called fine structure, as shown in Figure 30.53. The doublet changes when a magnetic field is applied, implying that whatever causes the doublet interacts with a magnetic field. In 1925, Sem Goudsmit and George Uhlenbeck, two Dutch physicists, successfully argued that electrons have properties analogous to a macroscopic charge spinning on its axis. Electrons, in fact, have an internal or intrinsic angular momentum called intrinsic spin S . Since electrons are charged, their intrinsic spin creates an intrinsic magnetic field. Q: Since electrons are charged, their intrinsic spin creates a what? A:
OPTIONS:
- suppressed electrical field
- magnified rupulsed field
- intrinsic electrical field
- intrinsic magnetic field
Answer: intrinsic magnetic field

input with options: Answer the following question given this paragraph: An ideal engine, the most efficient theoretically possible, is called a Carnot Engine. Its efficiency is given by the following formula, where the temperatures are, respectively, the temperature of the exhaust environment and the temperature of the heat input, in Kelvins. In a Carnot engine heat is input and exhausted in isothermal cycles, and the efficiency is . In all real engines heat is lost to the environment, thus the ideal efficiency is never even close to being obtained. Q: What is the name of the the most efficient possible engine? A:
OPTIONS:
- excitation engine
- diesel engine
- ventilation engine
- carnot engine
output: carnot engine

Q: Answer the following question given this paragraph: you could prove that movements are occurring even in the absence of a gradient. In a similar manner, there are analogous carrier systems that move hydrophobic molecules through water. Channel molecules sit within a membrane and contain an aqueous channel that spans the membrane's hydrophobic region. Hydrophilic molecules of particular sizes and shapes can pass through this aqueous channel and their movement involves a significantly lower activation energy than would be associated with moving through the lipid part of the membrane in the absence of the channel. Channels are generally highly selective in terms of which particles will pass through them. For example, there are channels in which 10,000 potassium ions will pass through for every one sodium ion. Often the properties of these channels can be regulated; they can exist in two or more distinct structural states. For example, in one state the channel can be open and allow particles to pass through or it can be closed, that is the channel can be turned on and off. Channels cannot, however, determine in which direction an ion will move - that is determined by the ion gradient across the membrane. The transition between open and closed states can be regulated through a number of processes, including the reversible binding of small molecules to the protein and various other molecular changes (which we will consider when we talk about proteins). Another method of channel control depends on the fact that channel proteins are i) embedded within a membrane and ii) contain charged groups. As we will see cells can (and generally do) generate ion gradients, that, is a separation of charged species across their membranes. For example if the concentration of K+ ions is higher on one side of the membrane, there will be an ion gradient where the natural tendency is for the ions to move to the region of lower K+ concentration.222 The ion gradient in turn can produce an electrical field across the plasma membrane. As these fields change, they can produce (induce) changes... Q: What type of molecules sit within a membrane and contain an aqueous channel that spans the membrane's hydrophobic region? A:

OPTIONS:
- osmotic fluid
- microorganisms
- mole
- channel

A: channel

Answer the following question given this paragraph: Q: What does photosynthesis allow plants to generate? A:
OPTIONS:
- enriched molecules
- geometric molecules
- clorophyll
- organic molecules
organic molecules