Digestive System
Which of the following is NOT an accessory organ of the digestive system?
A. Liver
B. Pancreas
C. Stomach
D. Gallbladder
C. Stomach
What is the main function of roots?
A. Reproduction
B. Anchorage and absorption
C. Transport of oxygen
D. Photosynthesis
B. Anchorage and absorption
Which of the following statement do animals contribute to the water cycle?
A. Drinking water C. Photosynthesis
B. Respiration and urination D. Combustion
B. Respiration and urination
What is the main purpose of cellular respiration?
A. Release energy from glucose C. Store water
B. Produce glucose D. Make oxygen
A. Release energy from glucose
Which of the following is the study of genes to determine traits inherited by the offspring from the parents?
A. Botany
B. Genetics
C. Histology
D. Zoology
B. Genetics
What is the function of mechanical digestion?
A. Release enzymes
B. Break down food into smaller pieces
C. Transport nutrients
D. Remove undigested food
B. Break down food into smaller pieces
Which plant organ supports the plant and transports water and nutrients?
A. Leaf
B. Root
C. Flower
D. Stem
D. Stem
Which process in plants releases oxygen into the atmosphere?
A. Respiration C. Transpiration
B. Photosynthesis D. Decomposition
B. Photosynthesis
Which combination correctly matches the process and cell organelle?
A. Photosynthesis – mitochondria
B. Respiration – chloroplast
C. Photosynthesis – chloroplast
D. Respiration – ribosome
C. Photosynthesis – chloroplast
Which Punnett square shows a cross between two heterozygous?
A. TT × TT
B. Tt × Tt
C. tt × TT
D. Tt × tt
B. Tt × Tt
Which structure removes waste from the blood and forms urine?
A. Small intestine
B. Kidney
C. Large intestine
D. Bladder
B. Kidney
How do roots and leaves work together in plant transport?
A. Roots grow upward, leaves grow downward
B. Roots absorb nutrients, leaves produce food
C. Roots perform photosynthesis, leaves absorb water
D. Roots store food, leaves create water
B. Roots absorb nutrients, leaves produce food
Why do animals depend on plants for survival in the oxygen cycle?
A. Plants produce water
B. Plants produce oxygen during photosynthesis
C. Plants remove carbon dioxide through respiration
D. Plants filter oxygen from soil
B. Plants produce oxygen during photosynthesis
Which of the is a fluid-filled space in chloroplast where the Calvin cycle occurs?
A. Cristae
B. Cytoplasm
C. Matrix
D. Stroma
D. Stroma
If two homozygous recessive individuals (aa) are crossed, what percentage of the offspring will also be homozygous recessive?
A. 0%
B. 25%
C. 50%
D. 100%
D. 100%
What would most likely happen if the small intestine were damaged?
A. More bile would be produced
B. Nutrient absorption would be impaired
C. Food would be digested faster
D. More enzymes would be released
B. Nutrient absorption would be impaired
What would likely happen to the leaves if the roots stopped working?
A. They would dry and wilt.
B. They would become darker green.
C. They would grow larger.
D. They would photosynthesize more.
A. They would dry and wilt.
Which process in plants releases oxygen into the atmosphere?
A. Respiration C. Transpiration
B. Photosynthesis D. Decomposition
C. Transpiration
Where do light-dependent reactions of photosynthesis occur?
A. Stroma
B. Cytoplasm
C. Thylakoid membranes
D. Matrix
C. Thylakoid membranes
Which cross will produce a 3:1 phenotypic ratio in the offspring?
A. RR × rr
B. RR × Rr
C. rr × rr
D. Rr × Rr
D. Rr × Rr
During digestion, which process allows nutrients to enter the bloodstream?
A. Chewing
B. Absorption
C. Secretion
D. Ingestion
B. Absorption
Which situation best describes how plant organs work together?
A. The roots absorb water, stem transports it, and leaf uses it for photosynthesis
B. The leaf releases food, which the flower stores
C. The stem absorbs sunlight while the root stores food
D. The root grows while the stem remains the same
A. The roots absorb water, stem transports it, and leaf uses it for photosynthesis
In the water cycle, if transpiration decreases, what is most likely to happen?
A. More rainfall occurs
B. Oxygen levels increase
C. Water table rises
D. Less water vapor in the atmosphere
D. Less water vapor in the atmosphere
Which statement best describes the relationship between photosynthesis and respiration?
A. Photosynthesis uses glucose, respiration produces it.
B. Photosynthesis produces glucose, respiration breaks it down for energy.
C. Both use oxygen and produce carbon dioxide.
D. Both produce oxygen for the cell.
B. Photosynthesis produces glucose, respiration breaks it down for energy.
Brown eyes (B) is dominant over blue eyes (b). Which cross would produce a blue-eyed organism?
A. BB x BB
B. BB x Bb
C. BB x bb
D. Bb x Bb
D. Bb x Bb