Mitosis/Meiosis
In meiosis, the end product is...
A. 2 haploid cells
B. 2 diploid cells
C. 4 haploid cells
D. 4 diploid cells
C. 4 Haploid cells
Photosynthesis is carried out by which of the following?
A. plants, but not animals
B. bacteria, but neither animals nor plants
C. animals, but not plants
D. all living organisms
A. plants, but not animals
Instructions found in the cells of an organism determine the characteristics or traits that the organism will have. This is an example of what life characteristic?
A. Living things reproduce
B. Living things obtain materials and energy
C. Living things have DNA
D. Living things are made of cells
C. Living things have DNA
Organisms that feed on both living producers and other consumers.
A. Carnivores
B. Omnivores
C. Herbivores
D. Detritivores
B. Omnivores
Small, single units, that can join together (or, repeat) to form a polymer or larger molecule
A. phospholipids
B. polysaccharides
C. monomer
D. polymer
C. monomer
Mitosis ane meiosis are processes by which animal and plant cells divide. Which statement best describes a difference between mitosis and meiosis?
A. Meiosis is a multi-step process.
B. Mitosis occurs only in eukaryotic cells.
C. Meiosis is used in the repair of an organism.
D. Mitosis produces genetically identical daughter cells.
D. Mitosis produces genetically identical daughter cells.
Which of the following are products in the process of photosynthesis?
A. carbon dioxide and water
B. glucose and oxygen
C. glucose and water
D. carbon dioxide and oxygen
B. glucose and oxygen
Green plants produce their own food through the process of photosynthesis. Which life characteristic does this represent?
A. All living things obtain & use materials and energy
B. All living things are made of cells
C. All living things maintain homeostasis
D. All living things grow & develop
A. All living things obtain & use materials and energy
The amount of energy that usually transfers from one trophic level to the next...
A. 10%
B. 20%
C. 80%
D. 50%
A. 10%
Which statement describes the formation of a protein molecule?
A. Amino acids combine to form a protein chain.
B. Fatty acid monomers dissolve to form a protein chain.
C. Fatty acid monomers combine to form a protein chain.
D. Amino acids dissolve monomers to form a protein chain.
A. Amino acids combine to form a protein chain.
If an organism has a diploid (2n) number of 6, what is its haploid (n) number?
A. 2
B. 3
C. 6
D. 12
B. 3
What does cellular respiration break down to convert to a usable form of energy?
A. Lipids
B. Proteins
C. Nucleic acids
D. Glucose
D. Glucose
The human body is composed of organ systems. Which list represents a systems from the least to most complex?
A. Heart --> cardiac muscle --> muscle tissue --> muscle cell
B. Muscle cell --> muscle tissue --> biceps muscle --> muscular system
C. Lung tissue --> trachea --> nostrils --> circulatory system
D. Integumentary system --> skin cell --> hair --> sweat glands
B. Muscle cell --> muscle tissue --> biceps muscle --> muscular system
When a population grows past the ecosystem's carrying capacity, what happens to the population?
A. Continues to grow
B. The population starts to die off to return to carrying capcity
C. The population will go extinct due to lack of resources
D. The population grows then finds a new carrying capacity
B. The population starts to die off to return to carrying capacity
Which statement best compares a carbohydrate and a nucleic acid?
A. The sequence of monomers in a carbohydrate stores genetic information, and the bonds in a nucleic acid store energy.
B. The bonds in a carbohydrate store energy, and the sequence of nucleotides in a nucleic acid store genetic information.
C. A carbohydrate has a unique structure to assist diffusion across a plasma membrane, and a nucleic acid has a unique structure to assist chemical reactions.
D. A carbohydrate has a unique structure to assist chemical reactions, and a nucleic acid has a unique structure to assist diffusion across a plasma membrane.
B. The bonds in a carbohydrate store energy, and the sequence of nucleotides in a nucleic acid store genetic information.
This phase of mitosis lines the chromosomes in the middle of the cell.
A. Anaphase
B. Prophase
C. Metaphase
D. Telophase
C. Metaphase
Which of these would increase the rate of photosynthesis and lead to the production of more glucose?
A. increase in available sunlight and available carbon dioxide
B. decrease in available sunlight and available carbon dioxide
C. increase in available sunlight and decrease in available carbon dioxide
D. decrease in available sunlight and increase in available carbon dioxide
A. increase in available sunlight and available carbon dioxide
After eating, the pancreas releases a hormone called insulin to help the cells take in the sugar from the food to keep the blood stream at the appropriate sugar level. This is an example of ...
A. all living things containing DNA.
B. all living things maintaining homeostasis.
C. all living things evolving.
D. all living things reproducing.
B. all living things maintaining homeostasis.
A researcher observing an ecosystem describes the amount of sunlight, precipitation, and type of soil present. Which factors is the researcher most likely describing?
A. biotic factors in a forest
B. biotic factors in a tundra
C. abiotic factors in a prairie
D. abiotic factors in an ocean
C. abiotic factors in a prairie
Many plants have a waxy coating on their leaves. Which statement describes the most likely structure and function of the waxy coating?
A. The waxy coating is a protein that can help attract other organisms for pollination.
B. The waxy coating is a protein that can help release waste molecules during transpiration.
C. The waxy coating is a lipid that can help absorb more sunlight in hot environments.
D. The waxy coating is a lipid that can help prevent excess water loss in dry environments.
D. The waxy coating is a lipid that can help prevent excess water loss in dry environments.
Two chromosomes (one from mom and one from dad) that code for the same traits and have the same length and general appearance
A. Twin Chromosomes
B. Homologous Chromosomes
C. Diploid Chromosomes
D. Haploid Chromosomes
B. Homologous Chromosomes
ATP is considered to be an energy carrier molecule. Where is the energy actually located in this molecule?
A. attached to the phosphate group
B. in the bonds between phosphate groups
C. attached to the nucleotide
D. between the sugar and the phosphate
B. in the bonds between phosphate groups
Heliotropism is the seasonal motion of plant parts (flowers or leaves) to face their direction of the Sun. This is an example of ...
A. all living things being made of cells.
B. all living things maintaining homeostasis.
C. all living things growing and developing.
D. all living things responding to stimuli.
D. all living things responding to stimuli.
Ash from a volcanic eruption decreases the amount of available solar energy for a region . Which statement describes how a decrease in available sunlight will most likely affect ecosystems of this region?
A. Producer populations will decrease, causing a decrease in consumer populations
B. Producer populations will decrease, causing an increase in consumer populations
C. Decomposer populations will increase, causing a decrease in consumer populations
D. Decomposer populations will increase, causing an increase in consumer populations
A. Producer populations will decrease, causing a decrease in consumer populations
Lipase is an enzyme that breaks down lipids in the digestive system of humans . It functions best at a pH range of 4.0 to 5.0. When a person takes an antacid tablet to relieve heartburn, the antacid increases the pH to around 7 in certain areas of the digestive system. Which initial effect would most likely be caused by a change in pH?
A. More lipids would be digested.
B. Fewer lipids would be digested.
C. The production of lipase molecules would increase.
D. The production of lipase molecules would decrease.
B. Fewer lipids would be digested.