WorksheetsBody/Plant Systems
Total questions: 10
Worksheet time: 10mins
Leaves are part of a plant’s shoot system. The xylem tissue in leaves transports —
the bacteria needed for nitrogen fixation in root nodules
the wax required to coat the surface of actively growing tissue
Water from the roots upwards through the entire plant.
The endocrine system releases hormones that prepare the immune system to deal with possible injuries.
Copper is a micronutrient that can be found in soil. Copper is important for reproductive growth in plants and plays an indirect role in chlorophyll production. Which statement correctly describes the interaction that occurs between the root and the shoot systems of plants to allow reproduction to occur?
Copper is produced in the roots when copper-containing compounds are hydrolyzed.
Copper that is absorbed by the roots is transported to reproductive tissues by the shoot system.
The shoot system stores copper for later use by the roots and the reproductive structures.
The shoot system transports copper to the roots after it is taken in through stomata in the leaves.
The human digestive system is approximately 900 cm long. Food is moved through the digestive tract primarily by —
bile produced by the pancreas
the enzymes amylase and pepsin
muscular contractions
hydrochloric acid in the stomach
The outermost layer of plant stems in dicotyledons consists of epidermal cells and guard cells that surround openings called stomata. The epidermal cells are usually covered with a waterproof layer that provides protection from injury and water loss. The stomata allow gas exchange. The epidermal cells and stomata have functions similar to those of which two human body systems?
Skeletal and respiratory
Cardiovascular and skeletal
Integumentary and respiratory
Cardiovascular and integumentary
When a person is suddenly cut by a sharp object, a nervous impulse is sent along a sensory neuron to the spinal cord. The impulse is immediately transmitted through motor neurons to produce a response. Which of the following correctly identifies and describes this response?
It is a conditioned response that occurs only to prevent injury.
It is a learned response that does not occur in infants and small children.
It is a reflex response that causes various muscles to contract in order to move away from the object.
It is a voluntary response that is initiated only after the impulse has been carried to the relevant area in the brain.
During the final stages of human gestation, receptors for the hormone oxytocin increase on the smooth muscle cells of the uterus. The release of oxytocin during labor stimulates the smooth muscle tissue in the wall of the uterus. The vigorous contraction of the uterine smooth muscle helps push the baby through the birth canal so that delivery can occur. This process involves the interaction of which organ systems?
Endocrine and muscular only
Endocrine and reproductive only
Endocrine, muscular, and reproductive
Endocrine, reproductive, and excretory
Cytokinins are a class of plant hormones that help regulate growth by promoting cell division. Cytokinins are produced mainly in meristematic tissue, where most plant growth occurs. Which system carries cytokinins produced in the roots to the rest of the plant?
Vascular system
Dermal system
Reproductive system
None of these
Scientists studying illnesses caused by chemically contaminated food conduct research to minimize the effects of these diseases on society. These chemicals harm the body through interactions between the digestive system and the immune system. Scientists conducting this research are likely to describe which of these interactions between the digestive and immune systems?
Chemicals enter the immune system through a break in the skin. The chemical contamination is then passed to the digestive system by the circulatory system.
The immune system transforms the chemicals in the contaminated foods into harmless chemicals. These harmless chemicals are then broken down by the digestive system.
When contaminated foods are eaten, the immune system prevents the chemicals from entering the digestive system.
Chemicals enter the digestive system through contaminated foods. Once in the body, the chemical contaminants impair the body’s ability to fight off infectious diseases.
Kidneys are part of the excretory system in a human body. They purify the impure blood and send it back to the rest of the body. Which system is mainly responsible for the transport of plasma to the kidneys?
Respiratory system
Circulatory system
Muscular system
Nervous system
Invasive plant species affect the interactions of living and nonliving components of an ecosystem, so the removal of invasive plants is often necessary. The goal of most plant-control methods is to disrupt or inhibit the function of different plant systems. For example, insects can be used to chew through roots in order to reduce a plant’s ability to absorb water.Which of these functions would be most immediately affected by a reduction in water uptake by roots?
Disease resistance
Seed dispersal
Sunlight absorption
Photosynthesis
