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- Multiple ChoicePlease save your changes before editing any questions.
There are over 2000 kinds of edible insects in the world, and they are becoming an increasingly popular source of protein. One cup of cricket flour contains over 28 grams of protein. The building blocks of the protein in cricket flour are
amino acids
water
simple sugars
carbohydrates
- Multiple ChoicePlease save your changes before editing any questions.
Protein synthesis is accomplished primarily by the interaction of which two cell structures?
vacuole and mitochondria
ribosomes and vacuoles
nuclei and ribosomes
nuclei and mitochondria
- Multiple ChoicePlease save your changes before editing any questions.
In which cell structure is energy extracted from nutrients?
chloroplast
mitochondrion
ribosome
vacuole
- Multiple ChoicePlease save your changes before editing any questions.
The Venus fly trap is a plant that has a unique system by which it traps and breaks down its prey. Unsuspecting insects land on the leaf and touch tiny hairs located on the leaf, triggering the leaf to close around the prey
The substance responsible for breaking down the Venus fly trap’s prey most likely contains
chlorophyll molecules
glucose mlecules
hormone molecules
enzyme molecule
- Multiple ChoicePlease save your changes before editing any questions.
Certain seaweeds contain a greater concentration of iodine inside their cells than there is in the seawater surrounding them. The energy required to maintain this concentration difference is most closely associated with the action of
ribosomes
vacuoles
mitochondria
nuclei
- Multiple ChoicePlease save your changes before editing any questions.
An amoeba is a single-celled organism. It uses its cell membrane to obtain food from its environment, digests the food with the help of organelles called lysosomes, and uses other organelles to process the digested food. From this, we can best infer that
amoebas are capable of digesting any type of food molecule
single-celled organisms are as complex as multicellular organisms
all single-celled organisms have lysosomes to digest food
structures in amoebas have functions similar to organs in multicellular organisms
- Multiple ChoicePlease save your changes before editing any questions.
The diagram represents a process taking place in a cell.
The type of organic molecule that is being synthesized is
DNA
protein
starch
fat
- Multiple ChoicePlease save your changes before editing any questions.
The diagram represents the organization of structures within an organism.
Which term best indicates the structures represented by the circle labeled X?
organelles
organ systems
chromosomes
tissues
- Multiple ChoicePlease save your changes before editing any questions.
The diagram represents a portion of a cell membrane.
The arrow indicates that the cell membrane is carrying out the process of
respiration
diffusion
cell recognition
active transport
- Multiple ChoicePlease save your changes before editing any questions.
The two diagrams represent a sugar molecule and a fat molecule that are used by living organisms.
Which statement best describes these two molecules?
Sugar molecules are inorganic and fat molecules are organic.
Sugar molecules are organic and fat molecules are inorganic.
Energy for life processes can be stored within the chemical bonds of both molecules
Energy for life processes can be stored within the chemical bonds of sugar molecules, only
- Multiple ChoicePlease save your changes before editing any questions.
The diagram represents a cell in the human body.
Which statement concerning the structures within this cell is accurate?
Structure 1 is a chloroplast that carries out photosynthesis.
Structure 2 is a vacuole that contains DNA.
Structure 3 is a mitochondrion, where respiration takes place.
This is a plant cell
- Multiple ChoicePlease save your changes before editing any questions.
Fat molecules typically contain long chains of carbon atoms. Animals tend to store fats for use when food resources are scarce.
This is an advantage to the animal because
(1) much energy can be gained by breaking the bonds between atoms in the fats
(2) fats give off carbon dioxide that can be used by the muscles
(3) amino acids from fat synthesis are more easily digested than carbohydrates
(4) energy can only be created by digesting fats
- Multiple ChoicePlease save your changes before editing any questions.
Research has shown that treadmill training increases the number of certain energy-releasing structures in the brain cells of rats.
The cellular structures referred to in this study are most likely
mitochondria
vacuole
nuclei
ribosomes
- Multiple ChoicePlease save your changes before editing any questions.
The major role of carbohydrates in the human diet is to
act as a catalyst for cellular reactions
supply energy for the body
provide building blocks for amino acids
form the membranes that surround the mitochondria
- Multiple ChoicePlease save your changes before editing any questions.
One primary function of the cell membrane is
(1) regulating the flow of simple sugars into or out of the cell
(2) synthesizing substances by breaking down cell organelles
(3) storing carbohydrates, water, and starches for future use
(4) digesting carbohydrates, fats, and protein
- Multiple ChoicePlease save your changes before editing any questions.
The processes of diffusion and active transport are both used to
(1) break down molecules to release energy
(2) move molecules into or out of cells of the body
(3) bring molecules into cells when they are more concentrated outside of the cell
(4) move molecules against a concentration gradient, using ATP molecules
- Multiple ChoicePlease save your changes before editing any questions.
Organic compounds are used as building blocks for
(1) water, DNA, and starches
(2) water, proteins, and oxygen
(3) proteins, DNA, and carbon dioxide
(4) proteins, starches, and fats
- Multiple ChoicePlease save your changes before editing any questions.
In the diagram which structure would store food structure ?
mitochondrion
ribosomes
vacuole
nucleus
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Current evidence indicates that ribosomes are most closely associated with
contraction of the cytoplasm
production of DNA
synthesis of protein
regulation of mitosis
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Which cell organelles are most closely associated with energy changes in a plant?
mitochondria and chromosomes
chloroplasts and mitochondria
chromosomes and nucleus
chloroplast and nucleus
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which is the most accurate statement concerning protein synthesis in cells?
Proteins are synthesized by mitochondria in all living cells
Proteins are synthesized at the ribosomes in all living cells
Proteins are synthesized at the ribosomes in plant cells only
Proteins are synthesized by the nuclei in animal cells only
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The genetic material of an animal cell is found in the
nucleus
cytoplasm
ribosomes
vacuole
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The ability of an organism to maintain internal stability is known as
metabolism
homeostasis
circulation
excretion
- Fill in the BlankPlease save your changes before editing any questions.
All living things are made of one or more
- Multiple ChoicePlease save your changes before editing any questions.
Living things are made mostly of these 4 main elements
hydrogen, oxygen, nitrogen, and protein
water, protein, carbohydrates, and fat
carbon, hydrogen, oxygen, and nitrogen
glucose, salt, mineral, and base