ATI TEAS 7 PRACTICE EXAM (BIOLOGY) LATEST UPDATE |VERIFIED EXAM QUESTIONS WITH DETAILED ANSWERS ALL GRADED A+|GUARANTEED SUCCESS
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ATI TEAS 7 Biology
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ATI TEAS 7 Biology
ATI TEAS 7 PRACTICE EXAM (BIOLOGY) LATEST UPDATE |VERIFIED EXAM QUESTIONS WITH DETAILED ANSWERS ALL GRADED A+|GUARANTEED SUCCESS
The cell Theory - ANSWER-1. All living organisms are composed of one or more cells.
2. The cell is the basic unit of structure and organization in organis...
ATI TEAS 7 PRACTICE EXAM
(BIOLOGY) LATEST UPDATE 2024-
2025|VERIFIED EXAM QUESTIONS
WITH DETAILED ANSWERS ALL
GRADED A+|GUARANTEED SUCCESS
The cell Theory - ANSWER-✅1. All living organisms are composed of one or more
cells.
2. The cell is the basic unit of structure and organization in organisms.
3. Cells arise from pre-existing cells.
prokaryotic cells - ANSWER-✅- single-celled organisms
- do not have a nucleus
Eukaryotic cells - ANSWER-✅- one or more celled organism
- have nucleus
Nucleus - ANSWER-✅- Control center of the cell that contains DNA
- controls the cell functions
- regulates cell growth & metabolism
Nucleoli (makes ribosomes) - ANSWER-✅within the nucleus, it makes ribosomes
(protein synthesis)
Ribosomes (protein synthesis) - ANSWER-✅site of protein synthesis
- spherical shaped cell organelle
- non-membrane organelle
- do NOT have DNA
- composed of RNA and certain proteins
- found in plant and animal cell
Vacuole (stores) - ANSWER-✅stores water & cellular waste
,Golgi Complex/Apparatus (packages) - ANSWER-✅A cell organelle that helps make
and package materials to be transported out of the cell.
Mitochondria - ANSWER-✅- generates energy for the cell (ATP)
- uses enzymes found on cristae to release energy through catabolism
- oval-shaped organelle
- consist of an inner & outer membrane
- has its own DNA
- contains folds called cristae
- found in both plant and animal cells
Chloroplast - ANSWER-✅uses photosynthesis to produce ATP(energy)
- oval-shaped organelle
- consist of an inner & outer membrane
- has its own DNA
- does NOT have folds called cristae
- found in only plant cells
Rough Endoplasmic Reticulum - ANSWER-✅- has ribosomes
- makes proteins
Smooth Endoplasmic Reticulum - ANSWER-✅- no ribosomes
- makes lipids
Lysosomes - ANSWER-✅An organelle containing digestive enzymes
- sac like organelle
- single membrane
- lacks cristae & DNA
- presents inside animal cells but rarely found in plant cells
Cell membrane (plasma membrane) - ANSWER-✅The cell membrane is semi-
permeable, meaning the cell structure that controls what materials can enter or
leave the cell.
the semi-permeable structure is made of a phospholipid bilayer.
cell wall - ANSWER-✅A rigid layer of nonliving material that surrounds the cells of
plants and some other organisms.
Chitin - ANSWER-✅- is a carbohydrate that provides structural support
is a nitrogen-containing carbohydrate that is an essential constituent of cell walls for
fungi and animal's exoskeletons
Cytoplasm - ANSWER-✅- is the region of cytosol & organelles
,- jelly like substance present inside the cell that contain different proteins, salt, cell
organelles, and water.
Vesicle - ANSWER-✅moves materials in the cell
Plastid - ANSWER-✅A group of membrane-bound organelles commonly found in
photosynthetic organisms and mainly responsible for the synthesis and storage of
food.
Cytoskeleton - ANSWER-✅A network of fibers that holds the cell together, helps the
cell to keep its shape, and aids in movement
Macromolcules - ANSWER-✅A very large organic molecule is composed of many
smaller molecules.
Protein - ANSWER-✅made up of chains of amino acids & found in the majority of
enzyme catalysts
monomer: amino acid
polymer: polypeptides
nucleic acids - ANSWER-✅Macromolecules are made of nucleotides. RNA and DNA
are formed from nucleotides and require ATP to replicate DNA.
monomer: nucleotide
Polymer: RNA & DNA
Chromosomes - ANSWER-✅threadlike structures made of DNA molecules that
contain the genes
, - carries the gene material from one person to the next during reproduction
Centromere - ANSWER-✅determine how many chromosomes are present.
1 Centromere = 1 Chromosome.
The Centromere is found in the center of every Chromosome
kinetochore - ANSWER-✅A protein structure that is found in the center of the
centromere.
Attaches the spindle fibers and locks it into place
chromatid vs chromatin - ANSWER-✅Chromatid = refers to a piece of DNA molecule
when it is condense.
Chromatid is made of chromatin
Chromatin= refers to a piece of DNA molecule when it is loose and Messy
Centrioles - ANSWER-✅spindle fibers that attach to chromosomes & aid in
chromosome movement during cell division
Gene - ANSWER-✅part of the chromosome that guides the production of proteins
DNA - ANSWER-✅A complex molecule containing the genetic information that
makes up the chromosomes.
Synthesis of DNA strands - ANSWER-✅the leading strand orients in the direction of
replication fork
Codons - ANSWER-✅A three-nucleotide sequence of DNA or mRNA that specifies a
particular amino acid or termination signal; the basic unit of the genetic code.
Nucleotides - ANSWER-✅are the monomers (building blocks) of nucleic acids (DNA
& RNA)Their job is to code for specific amino acids (monomers of protein)
Repeating monomers in DNA and RNA; consist of a phosphate group, 5-carbon sugar,
and a nitrogen base.
DNA and RNA - ANSWER-✅work together in protein synthesis
are made up of nitrogenous base, phosphate group, and pentose sugar
DNA structure - ANSWER-✅- double helix
- Thymine
- uses deoxyribose sugar to aid in gene expression, replication, and transportation
RNA structure - ANSWER-✅- single strand
- Uracil
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