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WorksheetsDay 2 STAAR REVIEW Practice- Cell Cycle, Biomolecules
Total questions: 14
Worksheet time: 11mins
The activities in the cell cycle occur during specific phases. In which phase of the cell cycle is DNA replicated?
Mitosis
G1 phase
G2 phase
S phase
An advertisement for a health supplement for dogs claims to build lean muscle and strengthen tendons and ligaments, as well as provide energy. Which two biomolecules must the supplement contain to provide these benefits?
Carbohydrates and lipids
Proteins and carbohydrates
Nucleic acids and carbohydrates
Lipids and nucleic acids
When mammals get an infection, their internal body temperature often rises 2 to 3 degrees Celsius. The body gets the energy it needs to react to an infection by —
increasing the rate of cellular division
decreasing the rate of glucose movement into the cell
increasing the rate of cellular respiration in mitochondria
decreasing the rate at which carbon dioxide is removed from the cell
This model of the cell cycle includes two arrows that each represent a process in the cycle.
Arrow 1 represents prophase, and Arrow 2 represents interphase.
Arrow 1 represents mitosis, and Arrow 2 represents meiosis.
Arrow 1 represents interphase, and Arrow 2 represents mitosis.
Arrow 1 represents meiosis, and Arrow 2 represents prophase.
NUCLEOTIDES ARE THE BUILDING BLOCKS OF...
CARBOHYDRATES
LIPIDS
NUCLEIC ACIDS
PROTEINS
The activities in the cell cycle occur during specific phases. In which phase of the cell cycle is DNA replicated?
Mitosis
G phase
G2 phase
S phase
Which process can occur in both mitosis and meiosis?
fertilization
independent assortment
gene mutation
crossing over
How are mitosis and meiosis similar?
both involve crossing over
both produce gametes
both require DNA replication
both have two cell divisions
Why is meiosis important for sexual reproduction?
It allows the zygote formed from fertilization to have triple the chromosome number of the organism.
It allows gametes to have twice the original number of chromosomes of the organism.
It allows gametes to have half the original number of chromosomes of the organism.
It allows the zygote formed from fertilization to have half the original number of chromosomes of the organism.
A table of four types of carbohydrates is shown.
Energy: glycogen and starch Structure: cellulose and chitin
Energy: cellulose and chitin Structure: glycogen and starch
Energy: chitin and glycogen Structure: cellulose and starch
Energy: cellulose and starch Structure: chitin and glycogen
Which biomolecule makes up the cell membrane and hormones?
lipids
protein
nucleic acid
carbohydrate
Beeswax is a waxy substance that is produced by bees and then harvested by humans for a variety of uses. Ancient Romans used beeswax as a waterproofing agent because it is not water-permeable. Beeswax is which of the following types of organic molecule?
carbohydrate
lipid
nucleic acid
protein
Many land plants store energy in starch. When energy is needed, the starch molecules can be broken down quickly. This chemical reaction produces which of the following?
amino acids
lipids
monosaccharides
RNA chains
