Living vs. Non Living
Viruses are exceptions to the cell theory, but they have some characteristics of living things. What is one of these characteristics?
1. They are made up of many specialized cells.
2. They contain genetic material.
3. They reproduce by mitosis.
4. They contain chlorophyll.
2. They contain genetic material.
According to the heterotroph hypothesis, some early heterotrophs evolved into autotrophs because of their ability to synthesize organic compounds from water and
1. carbon dioxide
2. hydrochloric acid
3. oxygen
4. hydrogen
1. carbon dioxide
Which system of the body contains the veins, arteries and blood vessels?
Circulatory/ cardiovascular system
Which organelle contains the enzymes needed to synthesize ATP in the presence of oxygen?
1. Mitochondria
2. Golgi body
3. Endoplasmic Reticulum
4. Nucleus
1. Mitochondria (the powerhouse of the cell, where respiration occurs)
Golgi body - packages proteins
Endoplasmic Reticulum - is for the transport of materials
Nucleus - controls all cell activities and contains the DNA.
Which set of organelles and body systems is correctly paired based on their functions?
1. excretory system and lysosome
2. respiratory system and cell membrane
3. circulatory system and mitochondria
4. Nervous system and cell membrane
2. respiratory system and cell membrane
both do gas exchange
Which formula represents an organic compound?
1. Mg(OH)2
2. NaCl
3. C12H22O11
4. NH3
3. C12H22O11
An ecosystem will be self-sustaining if:
1. all organisms are heterotrophs
2. the organisms in A are equal in number to the organisms in B
3. the type of organisms in B are eliminated
4. materials cycle between the organisms in A and the organisms in B
4. materials cycle between the organisms in A and the organisms in B
An organelle differs from an organ in that an organelle 1. is a substructure of a cell
2. contains one specific type of tissue
3. is larger than an organ
4. cannot be stained
1. is a substructure of a cell
Which structure includes all of the others?
1. DNA
2. nucleus
3. chromosomes
4. genes
2. nucleus
The pituitary gland, pineal gland, and thyroid gland are part of which system of the body?
1. circulatory system
2. endocrine system
3. excretory system
4. digestive system
2. endocrine system
Which is an organic compound found in most cells?
1. glucose
2. water
3. sodium chloride
4. oxygen gas
1. glucose
What is the major differences between starch and glucose?
1. one is organic and the other is not
2. glucose is a smaller molecule than starch
3.starch can be easily diffused into the bloodstream
4. starch is a smaller molecule than starch
2. glucose is a smaller molecule than starch
Which sequence illustrates the increasing complexity of levels of organization in multicellular organisms?
1. organelle->cell->tissue->organ->organ->system-> organism
2. cell-> organelle-> tissue-> organ-> organ system-> organism
3. organelle-> tissue ->cell ->organ-> organ system-> organism
4. cell ->organism->organ system->organ->tissue->organelle
1. organelle->cell->tissue->organ->organ->system-> organism
Most cell membranes are composed principally of
1. DNA and ATP
2. proteins and lipids
3. chitin and starch
4. nucleotides and amino acids
2. proteins and lipids
What is the condition called due to improper function of the insulin hormone?
diabetes
Which of the following describes an abiotic factor?
1. decomposers on a log
2. pH of the soil
3. english ivy growing on a building
4. insect pollinators
2. pH of the soil
The presence of cilia, an oral groove, and food vacuoles, and the absence of chloroplasts in a unicellular organism indicate that the organism carries on
1. sexual reproduction
2. autotrophic nutrition
3. extracellular digestion
4. heterotrophic nutrition
4. heterotrophic nutrition
Which sequence shows increasing complexity of levels of ecological organization?
1. biosphere, ecosystem, community
2. biosphere, community, ecosystem
3. community, ecosystem, biosphere
4. ecosystem, biosphere, community
3. community, ecosystem, biosphere
Which structure is usually present only in animal cells? 1. vacuole
2. cell wall
3. nucleus
4. centriole
4. centriole
What is the name of the organ that forms during pregnancy in females?
placenta
Which of the following does not apply to all living things?
1. is made of cells
2. breathes
3. responds to their environment
4. excretes waste
2. breathes
According to the heterotroph hypothesis, autotrophs were able to evolve because heterotrophs made conditions more favorable by
1. producing chlorophyll for plants
2. adding carbon dioxide to the environment
3. storing energy in the bonds of inorganic compounds
4. manufacturing food from carbon dioxide and oxygen
2. adding carbon dioxide to the environment
A food chain includes crickets, frogs, snakes, and hawks. Which animals are the primary consumers?
1. crickets
2. frogs
3. snakes
4. hawks
1. crickets
Name the organelle responsible for converting inorganic materials like carbon dioxide into organic molecules that can then be used for energy.
chloroplasts
In humans, the number of sperm cells required to produce a pair of identical twins is________?
1
Only one sperm is needed to form a zygote which will then split to form two organisms.