Tissues, Organs and Organ Systems

This statement about Homeostasis is incorrect:

Homeostasis is necessary for the survival of cells

Homeostatic mechanisms keep the internal environment constant despite wide changes in the external environment

Because of this, the fluctuations of the internal environment are of extremely narrow range as compared to that of the external environment

There is one system regulating the homeostatic activities

Which description of xylem is correct?

An organ used for transport

A tissue used for transport

A cell used for absorption

An organ system used for conduction

Which of the following statements best describes homeostasis?

Dynamic equilibrium

Maintaining a near-constant internal environment

Keeping the body in a fixed and unaltered state

Altering the external environment to accommodate the body’s needs

You can observe spongy mesophyll and xylem in the section of leaf. These are part of the same:

Tissue and organ

Organ and organism

Cell and tissue

Cell and organism

The table shows three functions of cells. Which row is correct?

Xylem vessel, root hair cell, muscle cell

Root hair cell, red blood cell, muscle cells

Xylem vessel, root hair cell, red blood cell, muscle cell

Rod blood cell, xylem vessel, muscle cell

If tissue level is not developed at the level of organization, which next level will not form?

Molecular level

Organ level

Atomic level

Organelle level

The diagram shows tissues from the section of leaf. Which type of cells will perform photosynthesis?

3 and 6

1 and 4

2 and 3

2 and 5

5. Which of the following lists the levels of body organization from smallest to largest?

Tissue, cell, organ, organ system, organism

Cell, tissue, organ, organ system, organism

Organism, organ system, organ, tissue, cell

Organ, organ system, organism, tissue, cell

Which structure is not an organ?

Xylem

Artery

Flower

Spinal cord

Organisms have the ability to change and modify their internal conditions according to the environment through:

All of the above

Osmoregulation

Excretion

Thermoregulation

The diagram shows cells in part of the leaf of a green plant. Which region contains cells that are responsible for the process of transport?

Epidermis

Phloem

All of the above

Xylem

The diagram shows a sample of material taken from an organism. Which level of organization does the sample show? (Nucleus, Nerve, Axon ending, Cell body)

Organ system

Tissue

Cell

Organ

What are the functions of xylem and phloem in green plants?

Transport of water, support and transport of sugars

Support and transport of water, transport of sugars

Which structure is at a different level of organization from the other three?

Neuron

Lung

Kidney

Liver

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