- Which of the following organelles is common to both plant and animal cells
- A. Cellulose cell wall
- B. Chlorophyll
- C. Cell membrane
- D. Large vacuole
Correct Option: Answer is C
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes.
2.
The diagrams below are illustrations of different sections of a particular fruit. Study them and answer questions 2 and 3
The sections in X and Y respectively, are
- A. longitudinal and transverse
- B. transverse and longitudinal
- C. cross and transverse
- D.
Correct Option: Answer is B
3. The fruit that has the illustrated sections is a
- A. hesperidium
- B. capsule
- C. drupe
- D. cypsela
Correct Option: Answer is A
- The lemon (Citrus lemon) is a hesperidium, a berry with a leathery rind. The exocarp (peel) contains volatile oil glands (essential oils) in pits.
4. The diagram below is an illustration of a Fungus. Study it and answer questions 4 to 6
The structure labelled I is associated with
- A. sexual reproduction
- B. asexual reproduction
- C. bud formation
- D. gamete formation
Correct Option: Answer is B
5. The structure labeled II is the
- A. spore
- B. stolon
- C. columella
- D. sporangium
Correct Option: Answer is D
A sporangium is a structure in certain plants and other organisms that is charged with making and storing spores
6. The diagram below is an illustration of a Fungus. Study it and answer questions 4 to 6
Which of the following statements about the structure labeled III is correct?
- A. secretes digestive enzymes into the substrate
- B. absorbs mineral salts from the soil
- C. forms the root hairs of the organism
- D. develops into stolon
Correct Option: Answer is A
7. The level of organization of the organism is
- A. tissue
- B. cell
- C. organ
- D. system
Correct Option: Answer is B
- Unicellular Organisms
- Single-celled organisms may be prokaryotic (simple cells like bacteria) or eukaryotic (more complex cells like amoebas and algae).
8.
The organism belongs to the Phylum
- A. Rhizopoda
- B. Ciliophora
- C. Euglenophyta
- D. Rhodophyta
Correct Option: Answer is C
9. A plant cell placed in a solution with a higher water potential will
- A. expand and then shrink
- B. enlarge and become turgid.
- C. expand and then burst
- D. decrease in size and become flaccid
Correct Option: Answer is B
- When a plant cell is placed in a hypotonic solution or a solution having higher water potential, the water diffuses into the cell (i.e., the movement is observed from higher to lower water pressure region). The entry of water into the plant cell exerts pressure on the rigid cell wall. This is called turgor pressure.
10. Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because
- A. greater amount of DNA is involved in sexual reproduction
- B. gametes of parents have different genetic composition
- C. genetic materials come from parents of two different species
- D. sexual reproduction is a lengthy process
Correct Option: Answer is B
11. Radius and ulna are bones of the?
- A. pectoral girdle
- B. upper arm
- C. pelvic girdle
- D. lower arm
Correct Option: Answer is D
The radius and ulna are long bones that make up the forearm, extending from the elbow to the wrist. In the anatomical position, the radius is found in the lateral forearm, while the ulna is found in the medial forearm.
12. The blood vessel which carries blood from the alimentary canal to the liver is the
- A. hepatic artery
- B. hepatic vein
- C. hepatic portal vein
- D. mesenteric artery
Correct Option: Answer is C
- The portal vein or hepatic portal vein (HPV) is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. This blood contains nutrients and toxins extracted from digested contents.
13.
The diagram above is an illustration of the longitudinal section of a mammalian organ. Study it and answer this question.
Which of the labeled parts is the cortex?
- A. I
- B. II
- C. III
- D. IV
Correct Option: Answer is D
14. The diagram above is an illustration of the longitudinal section of a mammalian organ. Study it and answer this question. What is the main function of the organ?
- A. Excretion
- B. Respiration
- C. Reproduction
- D. Locomotion
Correct Option: Answer is A
kidneys excrete wastes and extra fluid from your body. Your kidneys also remove acid that is produced by the cells of your body and maintain a healthy balance of water, salts, and minerals
15. Detoxification of urea takes place in the?
- A. pancreas
- B. heart
- C. liver
- D. testes
Correct Option: Answer is C
ammonia is detoxified through glutamine synthesis in liver, muscle, kidney and brain tissue or via the urea cycle in the liver.