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WorksheetsRC4:Biological Processes and Systems
Total questions: 21
Worksheet time: 5hrs 15mins
Which system of the body would be most directly affected if excess cholesterol led to plaque deposits in arteries? (a)
The cells represented in the diagram are involved in the learning process, short-term and long-term memory, and response to a stimulus. These cells are part of the – (a)
Which structure in the digestive system is the first place that chemical digestion takes place? (a)
Which receptors are responsible for humans' night vision? (a)
Which of the following structures is an opening on the underside of a leaf that is necessary for gas exchange? (a)
The outer single-layer group of cells covering a plant is the –
vascular tissue
cambium cells
circulatory tissue
epidermis
The plant structure that transports sugars down from leaves is – (a)
Which of these bests identifies the system that interrelates (a)
What does aerobic and anaerobic cellular respiration have in common?
Both are metabolic pathways by which cells obtain or use energy.
Both require oxygen to break molecular bonds for ATP production.
Both processes occur in all living organisms.
Both produce relatively equal amounts of ATP.
Which of the following is a correct representation of the organizational levels of a biological system? (a)
Which statement describes enzymes?
They control the transport of materials.
They provide energy for chemical reactions.
They absorb oxygen from the environment.
They affect the rate of chemical reactions.
The graphs show the reaction rate for an enzyme across a range of temperatures and pH. Based on these data, this enzyme functions best at what temperature and pH? (a)
The female reproductive and endocrine systems work interactively for which main purpose?
To maintain homeostasis by removing waste products from the body
To release neurotransmitters during times of stress
To control hormone levels to prepare the body for pregnancy
To exchange gases to support cellular aerobic respiration
The diagrams show some of the levels of biological organization. In what order are the levels in the diagrams? (a)
Plant roots have extensions called root hairs. These root hairs are important in the homeostasis of
the plant. Which statement best explains the importance of the root hairs to the stems and leaves of the
plant?
Root hairs convert minerals into glucose for immediate use by cells.
Root hairs decrease the need for osmosis and diffusion in vascular tissue.
Root hairs prevent water loss in leaves through transpiration and gas exchange.
Root hairs increase the surface area of the roots for nutrient and water absorption.
Which two body systems must directly interact for vertebrate organisms to exchange gases?
Skeletal system and muscular system
Excretory system and reproductive system
Circulatory system and respiratory system
Digestive system and immune system
The human body is composed of organ systems. Which list represents a system organized from
least to most complex?
Heart-->cardiac muscle-->muscle tissue-->muscle cell
Lung tissue-->trachea --> nostrils --> circulatory system
Muscle cell --> muscle tissue --> biceps muscle --> muscular system
Integumentary system --> skin cell --> hair --> sweat glands
How do the circulatory system and immune system work together to respond to an injury?
Increased blood flow kills healthy cells which prevents infection at the site of the injury.
Increased blood flow removes infected cells from the body at the site of the injury.
Increased blood flow carries white blood cells to the site of the injury.
Increased blood flow allows for an increase in the exchange of O2 and CO2 at the site of the injury.
Fruits grown in hot climates are usually less sweet than those grown in cooler temperatures.
The high temperatures increase the rate of respiration in the plants, thus reducing the sugar
Content in some fruits. Why does increased respiration in the leaves and stems reduce the sugar content in the fruits of a plant?
Chloroplasts move from the fruits to the leaves and stems to provide energy for respiration.
The flow of nutrients shifts from the phloem to the xylem, moving nutrients away from the fruits.
Sugars are moved from the fruits to the roots for storage
Sugars produced in the leaves are used as an energy source instead of being stored in fruits.
Which statement explains how producers are dependent upon consumers for their survival?
Consumers supply oxygen for producers to undergo aerobic respiration.
Consumers produce carbon dioxide for producers to use during photosynthesis.
Consumers provide chemical energy needed by producers for cellular respiration.
Consumers make lactic acid that producers use in photosynthesis.
A corn plant produces both male and female flowers. The male flower forms the tassel and the female flower forms the ear of corn. The silks that emerge from the ear are the stigma of the female flower. Each silk leads to an ovule that can become a corn seed. Which of these must happen for corn seeds to develop on the ear?
More tassels than silks need to be present on the same plant.
Pollen grains must fall from tassels and land on the silks of the ear.
Pollen must be transported from the tassel to the silk through the phloem
The tassels must come into direct contact with the silks of the ear.
