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WorksheetsBiology SGA Review
Total questions: 12
Worksheet time: 6mins
1. A student is investigating the effect of plants on indoor air quality and states, “If plants are added to an indoor environment, the air quality will improve.” This statement is an example of –
a procedure
an observation
a hypothesis
Which statement is an inference based on this information?
Plant seeds have different shapes.
Milkweed seeds are dispersed by wind.
Maple seeds have a membrane-like extension.
Burdock seeds have short, peg-like extensions.
What can be concluded from this graph?
The reactants have less energy than the products
The enzyme is consumed during the course of the reaction.
The enzyme lowers the energy of activation for the reaction.
The amount of free energy produced in the reaction increases with an enzyme.
Which feature do viruses have in common with animal cells?
Ability to form proteins at the ribosomes.
Existence of lipids in cell membranes.
Presence of a genetic code in nucleic acid.
Production of energy by a mitochondrion.
The diagram shown represents the input and output of a process performed by the chloroplast of a cell. Which substance is most likely represented by Y?
Glucose
CO2
ATP
Light
In 1950, Erwin Chargaff discovered that the percentage of adenine in DNA equals the percentage of thymine, and that the percentage of cytosine equals the percentage of guanine. This proved invaluable to the eventual discovery of which aspect of DNA?
Location
Solubility
Structure
Volume
Red flower color is dominant to white flower color in rose plants. What is the expected result of a cross between two heterozygous rose plants?
100% red
75% red, 25% white
50% red, 50% white
25% red, 75% white
Darwin’s explanation for evolution was dependent on which scientific concept?
The ability of organisms to learn
The significance of social behaviors to survival
The existence of variations in a population
The relationship between size and survival
This chart shows observations made of an unknown organism. Based on this information, the organism most likely belongs to the kingdom –
Fungi
Plantae
Eubacteria
Animalia
For the growth curve to continue increasing, which of these must occur?
The organisms must adapt to a new habitat.
The organisms must migrate to a new environment.
The resources in the environment must be unlimited.
The environment must provide a habitat for a large variety of organisms.
A student wanted to compare the transpiration rates of two different plant species at varying levels of humidity. The results are recorded in the table shown. Each plant group was given the same amount of water and light throughout the investigation. Which procedure should have been performed to prevent error in this investigation?
One type of plant should have been tested.
Fewer plants should have been included in each group.
The percentage of humidity should have been kept constant.
Both groups should have been tested in the same soil type at each humidity level.
The jackrabbit is a desert mammal. The jackrabbit’s circulatory system increases blood flow to the ears during hot days. The blood flow to the ears decreases during cool or cold nights. This circulation pattern is most directly related to –
Detoxification
Excretion
Osmosis
Homeostasis
