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WorksheetsLobo Bio RC4
Total questions: 40
Worksheet time: 57mins
Match the biomolecule to its chemical composition.
Carbohydrate
C1H2O1
Protein
CHON (sometimes S)
Lipid
CHO
Nucleic Acid
CHONP
Match the biomolecule to its function.
Carbohydrate
Quick Energy
Protein
Builds Structures
Lipid
Stored Energy
Nucleic Acid
Genetic Information
Fill in the table for the cellular processes listed.
The image shows an enzyme being used to break apart a substrate. The enzyme is (a) after the reaction has completed.
(a) is the regulation and maintenance of constant internal conditions in an organism
Match the image to the correct body system.
Nervous
Endocrine
Circulatory
Immune
Which system(s) are responsible sending messages to regulate the body in response to the environment?
Which system(s) are responsible ensuring the body has the materials needed to complete cellular respiration by bringing in the reactants required?
Which system(s) are responsible protecting the body from illness and injury?
Which system(s) are responsible maintaining homeostasis?
Which system(s) transports nutrients, hormones, and other things necessary for homeostasis around the body?
Fill in the blanks with the system that best completes the statement involved in completing the processes involved in regulation.
The (a) system secretes certain hormones.
Blood in the (b) system carries them to the (c) system to control the amount of calcium released by the bone.
Fill in the blanks with the system that best completes the statement involved in completing the processes involved in reproduction.
Certain hormones produced in the (a) system control ovulation in a female's (b) system.
Fill in the blanks with the system that best completes the statement involved in completing the processes involved in nutrient absorption.
Food is moved to the stomach by the (a) system.
Food is chemically broken down by water, acids, and enzymes in the (b) system.
Nutrients are then absorbed by blood in the (c) system.
Fill in the blanks with the system that best completes the statement involved in completing the processes involved in defense from injury and illness.
Mucus in the lungs traps a virus in the (a) system.
T-cells in the (b) system destroy virus infected cells.
Nerves in the (c) system sense pain from a fire damaging the skin of the (d) system.
Label the major plant systems.
Match the plant organ to its function.
Photosynthesis
Leaf
Transport of water and nutrients
Stem
Absorption of water
Root
Reproduction
Flower
Match the plant response to its description.
Turning or bending of a plant in response to contact with an object
Thigmotropism
Growth of a plant toward a light source
Phototropism
Growth of a plant toward water
Hydrotropism
Plant stems grow upward, against gravity, and roots grow toward the gravitational pull
Gravitotropism
Put the images in order from simplest (left) to most complex (right).
Put the images in order from simplest (left) to most complex (right).
The (a) is the basic unit of life specialized to a particular structure to allow it to perform a specific function.
Proteins and carbohydrates have many functions in the body of an organism. Specific proteins and carbohydrates perform specific tasks. Information about a protein and a carbohydrate is given below.
How are ferritin and glycogen similar in their primary functions for an organism?
Both store materials needed by the organism.
Both store energy used by the organism.
Both support the structure of the organism.
Both store information for the organism.
The complex carbohydrates pictured are made by linking molecules of glucose.
In all three complex carbohydrates, the subunits of glucose are bonded together differently. Because they have different structures, they most likely —
contain different chemical elements.
form different proteins.
carry different nucleotides.
perform different functions.
Proteins and polysaccharides are polymers. These polymers are formed by dehydration synthesis. Which statement correctly identifies a difference in the structure of proteins and polysaccharides?
Only polysaccharides are comprised of repeating units of cytosine, adenine, guanine, and thymine.
Only proteins are formed from amino acids joined by peptide bonds.
Only polysaccharides can be folded and twisted to very specific shapes.
Only proteins can be large molecules with thousands of subunits.
A Venn diagram comparing the functions of proteins and nucleic acids is shown.
Which functions BEST complete the Venn diagram?
Select the correct answer for each box. Not all answers will be used.
Photosynthesis and cellular respiration both involve the use and release of gases. Which statement correctly identifies the role of gases in the two processes?
Photosynthesis and cellular respiration both use carbon dioxide and release oxygen.
Photosynthesis and cellular respiration both use oxygen and release carbon dioxide.
Cellular respiration uses oxygen and releases carbon dioxide, while photosynthesis uses carbon dioxide and releases oxygen.
Cellular respiration uses carbon dioxide and releases oxygen, while photosynthesis uses oxygen and releases carbon dioxide.
A model of two structures that perform cellular processes is shown.
What are the products of the cellular processes in these organelles?
I: glucose and carbon dioxide
II: oxygen and water
I: carbon dioxide and oxygen
II: glucose and water
I: oxygen and glucose
II: water and carbon dioxide
I: carbon dioxide and water
II: glucose and oxygen
The relationship between two cellular processes is shown in the diagram.
What is the relationship between the site of photosynthesis and the site of cellular respiration?
Move the answers to the correct boxes. Each box may require ONE or TWO answers.
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?
Temperature of 27°C and a pH of 4
Temperature of 37°C and a pH of 6
Temperature of 40°C and a pH of 8
Temperature of 50°C and a pH of 10
Some foods that are rich in complex carbohydrates can be difficult to digest. Gas often forms as the foods are slowly digested by bacteria in the large intestine. The advertisement is for a nutritional supplement that prevents intestinal gas.
Which of the following represents evidence that could be used to support the claims about this product?
Complex carbohydrates are found in vegetables and grains, which are good sources of fiber, vitamins, antioxidants, and minerals. Vegetables and grains are known to reduce the risk of heart disease.
Some nutritional supplements provide vitamins and minerals that are missing from a person's diet. These types of nutritional supplements contain important nutrients that reduce the risk of malnutrition.
Consuming enzymes specific for carbohydrate digestion helps the body digest complex carbohydrates more quickly in the stomach and small intestine.
Some nutritional supplements add beneficial bacteria to a person's diet. These bacteria populate the stomach and prevent carbohydrate digestion.
People who have Alzheimer's disease experience an increasing loss of brain function and cognition over time. Alzheimer's is characterized by a buildup of abnormal protein fragments that damage brain cells. Recently scientists have discovered an enzyme, BACE2, that decreases these abnormal protein fragments in the brain of a person with Alzheimer's disease. Which statement explains how BACE2 most likely works?
BACE2 breaks down into smaller pieces that react with the abnormal protein fragments, forming more complex molecules.
BACE2 speeds up the reaction that breaks down the abnormal protein fragments.
BACE2 molecules link several abnormal protein fragments together, forming a complete protein.
BACE2 is a reactant that combines with the abnormal protein fragments.
A model of an enzyme and its corresponding substrate is shown.
Which model best represents the molecules at the end of the reaction?
Which four body systems interact to allow a person to sneeze?
Muscular, immune, nervous, respiratory
Nervous, respiratory, circulatory, skeletal
Respiratory, endocrine, skeletal, circulatory
Lymphatic, skeletal, respiratory, muscular
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
Animal body systems often coordinate their actions to carry out specific functions for the whole animal. Which of these correctly describes the interaction of two biological systems for a specific purpose in the human body?
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 plant, thus reducing the sugar content in some fruits.
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.
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
A flower that has both male and female reproductive structures is shown.
Which statement best describes an interaction that will allow a flowering plant to reproduce by self-pollination?
An anther is transferred from a filament to another filament within the same flower.
An ovule is transferred from the ovary to a petal on a different flower.
A pollen grain is transferred from an anther to the stigma of the same flower.
An ovary is transferred from a flower on one plant to a flower on a different plant.
Which plant structures are DIRECTLY involved in the production and transport of glucose?
Select TWO correct answers.
A student is studying the ecology of a playa lake, which forms after a rainfall in a dry lake bed. The table lists the organisms that the student observed.
Which level of biological organization has the student described in the table?
Biosphere
Organelle
Ecosystem
Community
