Ati Teas 7 Biology Newest 2025 Exam
ATI TEAS 7 BIOLOGY NEWEST 2025 EXAM COMPLETE 100
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS)|ALREADY GRADED A+
What is the correct sequence of biological organization from simplest to most complex?
A. Organism → Tissue → Cell → Organ
B. Cell → Tissue → Organ → Organism
C. Organ → Cell → Tissue → Organism
D. Tissue → Cell → Organ → Organism
Answer: B. Cell → Tissue → Organ → Organism
Explanation: This represents increasing levels of biological structure.
Which system is responsible for producing hormones that regulate metabolism, growth, and
reproduction?
A. Endocrine
B. Nervous
C. Respiratory
D. Digestive
Answer: A. Endocrine
Explanation: The endocrine system uses glands to secrete hormones into the bloodstream.
Which part of the brain controls balance and coordination?
A. Medulla oblongata
B. Hypothalamus
C. Cerebrum
D. Cerebellum
Answer: D. Cerebellum
Explanation: The cerebellum is involved in motor control and balance.
1|Page
, Ati Teas 7 Biology Newest 2025 Exam
Which nitrogenous base is only found in RNA?
A. Adenine
B. Thymine
C. Cytosine
D. Uracil
Answer: D. Uracil
Explanation: RNA contains uracil instead of thymine, which is found in DNA.
What is the result of meiosis?
A. Two diploid daughter cells
B. Four haploid daughter cells
C. One identical daughter cell
D. Two identical haploid cells
Answer: B. Four haploid daughter cells
Explanation: Meiosis produces four genetically diverse gametes with half the number of
chromosomes.
Which of the following is an example of active transport?
A. Diffusion of oxygen across a membrane
B. Osmosis of water
C. Sodium-potassium pump
D. Movement of carbon dioxide out of a cell
C. Sodium-potassium pump
Explanation: The sodium-potassium pump moves ions against their concentration gradients
using energy (ATP).
What is the primary function of the large intestine?
A. Absorb nutrients
B. Store bile
C. Remove water from waste
D. Digest proteins
2|Page
, Ati Teas 7 Biology Newest 2025 Exam
C. Remove water from waste
Explanation: The large intestine absorbs water and forms solid waste (feces).
Which structure in the male reproductive system produces sperm?
A. Vas deferens
B. Urethra
C. Seminal vesicle
D. Testes
Answer: D. Testes
Explanation: The testes are the primary male reproductive organs that produce sperm and
testosterone.
Which type of muscle tissue is found in the walls of internal organs?
A. Skeletal
B. Cardiac
C. Smooth
D. Voluntary
Answer: C. Smooth
Explanation: Smooth muscle is involuntary and found in organs like the stomach and intestines.
What type of bond holds base pairs together in DNA?
A. Ionic
B. Hydrogen
C. Covalent
D. Metallic
Answer: B. Hydrogen
Explanation: Hydrogen bonds connect the nitrogenous bases in the DNA double helix.
Which organ produces insulin?
A. Liver
B. Kidney
C. Pancreas
D. Gallbladder
3|Page
ATI TEAS 7 BIOLOGY NEWEST 2025 EXAM COMPLETE 100
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS)|ALREADY GRADED A+
What is the correct sequence of biological organization from simplest to most complex?
A. Organism → Tissue → Cell → Organ
B. Cell → Tissue → Organ → Organism
C. Organ → Cell → Tissue → Organism
D. Tissue → Cell → Organ → Organism
Answer: B. Cell → Tissue → Organ → Organism
Explanation: This represents increasing levels of biological structure.
Which system is responsible for producing hormones that regulate metabolism, growth, and
reproduction?
A. Endocrine
B. Nervous
C. Respiratory
D. Digestive
Answer: A. Endocrine
Explanation: The endocrine system uses glands to secrete hormones into the bloodstream.
Which part of the brain controls balance and coordination?
A. Medulla oblongata
B. Hypothalamus
C. Cerebrum
D. Cerebellum
Answer: D. Cerebellum
Explanation: The cerebellum is involved in motor control and balance.
1|Page
, Ati Teas 7 Biology Newest 2025 Exam
Which nitrogenous base is only found in RNA?
A. Adenine
B. Thymine
C. Cytosine
D. Uracil
Answer: D. Uracil
Explanation: RNA contains uracil instead of thymine, which is found in DNA.
What is the result of meiosis?
A. Two diploid daughter cells
B. Four haploid daughter cells
C. One identical daughter cell
D. Two identical haploid cells
Answer: B. Four haploid daughter cells
Explanation: Meiosis produces four genetically diverse gametes with half the number of
chromosomes.
Which of the following is an example of active transport?
A. Diffusion of oxygen across a membrane
B. Osmosis of water
C. Sodium-potassium pump
D. Movement of carbon dioxide out of a cell
C. Sodium-potassium pump
Explanation: The sodium-potassium pump moves ions against their concentration gradients
using energy (ATP).
What is the primary function of the large intestine?
A. Absorb nutrients
B. Store bile
C. Remove water from waste
D. Digest proteins
2|Page
, Ati Teas 7 Biology Newest 2025 Exam
C. Remove water from waste
Explanation: The large intestine absorbs water and forms solid waste (feces).
Which structure in the male reproductive system produces sperm?
A. Vas deferens
B. Urethra
C. Seminal vesicle
D. Testes
Answer: D. Testes
Explanation: The testes are the primary male reproductive organs that produce sperm and
testosterone.
Which type of muscle tissue is found in the walls of internal organs?
A. Skeletal
B. Cardiac
C. Smooth
D. Voluntary
Answer: C. Smooth
Explanation: Smooth muscle is involuntary and found in organs like the stomach and intestines.
What type of bond holds base pairs together in DNA?
A. Ionic
B. Hydrogen
C. Covalent
D. Metallic
Answer: B. Hydrogen
Explanation: Hydrogen bonds connect the nitrogenous bases in the DNA double helix.
Which organ produces insulin?
A. Liver
B. Kidney
C. Pancreas
D. Gallbladder
3|Page
